Food Lipids: Chemistry, Nutrition, and Biotechnology

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38. U. Persmark, K. A. Melin, and P. O. Sta˙hl. Riv. Ital. Sost. Grasse 53:306–310 (1976). Quoted in R. E. Timms, Phase behaviour of fats and their mixtures. Prog. Lipid Res. 23:1 (1984). 39. P. H. Yap, J. M. deMan, and L. deMan. Polymorphism of palm oil and palm oil products. J. Am. Oil Chem. Soc. 66:693 (1989). 40. J. Bezard, M. Bugaut, and G. Clement. J. Am. Oil Chem. Soc. 48:134–139 (1971). Quoted in N. O. V. Sonntag, Composition and characteristics of individual fats and oils. In: Bailey’s Industrial Oil and Fat Products, 4th ed. (D. Swern, ed.), Wiley, New York, 1979, pp. 289–477. 41. G. M. Chapman, E. E. Akehurst, and W. B. Wright. Cocoa butter and confectionery fats. Studies using programmed temperature x-ray diffraction and differential scanning calorimetry. J. Am. Oil Chem. Soc. 48:824 (1971). 42. A. Hvolby. J. Am. Oil Chem. Soc. 51:50–54 (1974). Quoted in R. E. Timms, Phase behaviour of fats and their mixtures. Prog. Lipid Res. 23:1 (1984). 43. U. Riiner. Investigation of the polymorphism of fats and oils by temperature programmed x-ray diffraction. Lebensm. Wiss. Technol. 3:101 (1970). 44. C. W. Hoerr. Morphology of fats, oils and shortenings. J. Am. Oil Chem. Soc. 37:539 (1960). 45. S. Chaiseri and P. S. Dimick. Cocoa butter—Its composition and properties. Manuf. Confect. 67:115 (1987). 46. V. K. S. Shukla. Cocoa butter properties and quality. Lipid Technol. 7:54 (1995). 47. R. L. Wille and E. S. Lutton. Polymorphism of cocoa butter. J. Am. Oil Chem. Soc. 43:491 (1966). 48. A. Huyghebaert and H. Hendrickx. Lebens. Wiss. Technol. 4:59 (1971). Quoted in R. E. Timms, Phase behaviour of fats and their mixtures. Prog. Lipid Res. 23:1 (1984). 49. N. V. Lovegren, M. S. Gray, and R. O. Feuge. Polymorphic changes in mixtures of confectionery fats. J. Am. Oil Chem. Soc. 53:83 (1976). 50. J. D. Hicklin, G. G. Jewel, and J. F. Heathcock. Combining microscopy and physical techniques in the study of cocoa butter polymorphs and vegetable fat blends. Food Microstructure. 4:241 (1985). 51. L. Hernqvist. Chocolate temper. In: Industrial Chocolate Manufacture and Use (S. T. Beckett, ed.), Blackie & Sons, London, 1988, p. 159. 52. K. van Malssen, R. Peschar, and H. Schenk. Memory effect in solidification of cocoa butter. Voedingsmiddelentechnologie 28:67 (1995). 53. K. van Malssen, R. Peschar, and H. Schenk. Real-time x-ray powder diffraction investigations on cocoa butter: II. The relationship between melting behavior and composition of �-cocoa butter. J. Am. Oil Chem. Soc. 73:1217 (1996). 54. W. Layton, S. Back, R. J. Johnson, and J. F. Morse. Physico-chemical investigation incidental to the study of chocolate fat bloom: I. J. Soc. Chem. Ind. 56:196 (1937). Quoted in I. J. Kleinert, Studies on the formation of fat bloom and methods of delaying it. Paper presented at 15th Production Conference, Pennsylvania Manufacturing Confectioners’ Conference, Lancaster, PA, 1961. 55. H. A. Neville, N. R. Easton, and L. R. Barton. The problem of chocolate bloom. Food Technol. 4:439 (1950). 56. N. A. Full. Physical and sensory properties of milk chocolate made with dry-fractionated milk fat. M. S. thesis, University Park, PA, 1995. 57. D. J. Cebula and G. Ziegleder. X-ray diffraction studies of bloom formation in chocolates after long-term storage. Fett. Wiss. Technol. 95:340 (1993). 58. J. Schlichter-Aronhime and N. Garti. Solidification and polymorphism in cocoa butter and the blooming problems. In: Crystallization and Polymorphism of Fats and Fatty Acids (N. Garti and K. Sato, eds.), Dekker, New York, 1988, pp. 363–393. Copyright 2002 by Marcel Dekker, Inc. All Rights Reserved.
59. G. G. Jewell. Vegetable fats. In: Industrial Chocolate Manufacture and Use (S. T. Beckett, ed.), Blackie, Glasgow, 1988, pp. 227–235, 60. G. Talbot. Fat eutectics and crystallization. In: Physico-chemical Aspects of Food Processing (S. T. Beckett, ed.), Chapman-Hall, New York, 1995, pp. 142–166. 61. S. Y. Reddy, P. S. Dimick, and G. R. Ziegler. Compatibility of milk fat fractions with cocoa butter determined by differential scanning calorimetry. INFORM 5:522 (1994). 62. N. V. Lovegren, M. S. Gray, and R. O. Feuge. Effect of liquid fat on melting point and polymorphic behavior of cocoa butter and cocoa butter fraction. J. Am. Oil Chem. Soc. 53:108 (1976). 63. L. Campbell, D. Anderson, and P. Keeney. Hydrogenated milk fat as an inhibitor of the fat bloom defect in chocolate. J. Dairy Sci. 52:976 (1969). 64. J. W. DuRoss and W. H. Kightly. Relationship of sorbitan monostearate and polysorbate 60 to bloom resistance in properly tempered chocolate. Manuf. Confect. 45:51 (1965). 65. J. Schlichter-Aronhime, S. Sarig, and N. Garti. Mechanistic considerations of polymorphic transformations of tristearin in the presence of emulsifiers. J. Am. Oil Chem. Soc. 64:529 (1987). 66. N. Krog. Functions of emulsifiers in food systems. J. Am. Oil Chem. Soc. 54:124 (1977). Quoted in J. Aronhime, S. Sarig, and N. Garti, Emulsifiers as additives in fats: Effect on polymorphic transformations and crystal properties of fatty acids and triglycerides. Food Structure 9:337 (1990). 67. A. N. Mostafa and J. M. deMan. Application of infrared spectroscopy in the study of polymorphism of hydrogenated canola oil. J. Am. Oil Chem. Soc. 62:1481 (1985). Quoted in J. Aronhime, S. Sarig, and N. Garti, Emulsifiers as additives in fats: Effect on polymorphic transformations and crystal properties of fatty acids and triglycerides. Food Structure 9:337 (1990). 68. A. N. Mostafa, A. K. Smith, and J. M. deMan. Crystal structure of hydrogenated canola oil. J. Am. Oil Chem. Soc. 62:760 (1985): Quoted in J. Aronhime, S. Sarig, and N. Garti, Emulsifiers as additives in fats: Effect on polymorphic transformations and crystal properties of fatty acids and triglycerides. Food Structure 9:337 (1990). 69. C. Giddey and E. Clerc. Polymorphism of cocoa butter and its importance in the chocolate industry. Int. Choc. Rev. 16:548 (1961). 70. I. Hachiya, T. Koyano, and K. Sato. Seeding effects on crystallization behavior of cocoa butter. Agric. Biol. Chem. 53:327 (1989). 71. I. Hachiya, T. Koyano, and K. Sato. Seeding effects on solidification behavior of cocoa butter and dark chocolate: I. Kinetics of solidification. J. Am. Oil Chem. Soc. 66:1757 (1989). 72. T. Koyano, I. Hachiya, and K. Sato. Fat polymorphism and crystal seeding effects on fat bloom stability of dark chocolate. Food Structure 9:231 (1990). 73. P. S. Dimick and D. M. Manning. Thermal and compositional properties of cocoa butter during static crystallization. J. Am. Oil Chem. Soc. 64:1663 (1987). 74. T. R. Davis and P. S. Dimick. Lipid composition of high-melting seed crystals formed during cocoa butter solidification. J. Am. Oil Chem. Soc. 66:1494 (1989). 75. T. R. Davis and P. S. Dimick. Isolation and thermal characterization of high-melting seed crystals formed during cocoa butter solidification. J. Am. Oil Chem. Soc. 66:1488 (1989). 76a. P. S. Dimick. Influence de la composition sur la cristallisation du beurre de cacao. In: Proceedings of the International Symposium L’ALLIANCE 7–CEDUS, The Crystallization of Food Products, Paris, Nov. 24, 1994. 76b. P. S. Dimick. Compositional effects on crystallization of cocoa butter. In: Physical Properties of Fats, Oils, and Emulsifiers (N. Widlak, ed.). AOCS Press, Champaign, IL, 2000, pp. 140–163. Copyright 2002 by Marcel Dekker, Inc. All Rights Reserved.
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TM Food Lipids Chemistry, Nutrition
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FOOD SCIENCE AND TECHNOLOGY A Serie
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37. Omega-3 Fatty Acids in Health a
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90. Dairy Technology: Principles of
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Preface to the Second Edition Reade
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Preface to the First Edition There
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Contents Preface to the Second Edit
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20. Dietary Fats and Coronary Heart
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J. Bruce German Department of Food
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1 Nomenclature and Classification o
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described as 2-methyl-3-phytyl-1,4-
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Table 3 A Summary of Sequence Prior
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Table 5 Systematic, Common, and Sho
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saturation of EFA occurs (primarily
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Figure 5 Prostaglandin metabolites
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Figure 7 Prostanoic acid and prosta
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Figure 9 Eicosenoid isomers in part
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Figure 10 Nomenclature of cyclic fa
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Figure 13 Hydroxy fatty acid struct
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Figure 15 Furanoid fatty acid struc
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Table 7 Short Abbreviations for Som
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Figure 20 Steroid nomenclature. rep
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Figure 22 Cholesterol oxidation pro
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E. Phosphoglycerides (Phospholipids
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Figure 26 Glyceroglycolipid structu
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Figure 28 Structures of some vitami
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6. IUPAC. Nomenclature of Organic C
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2 Chemistry and Function of Phospho
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variant [1]. Phosphonolipids are ma
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nonelectrolytes, however, the perme
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pensations in that enthalpy lost by
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Table 3 Membrane Deterioration in A
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erols to generate semisolid or plas
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The interaction of phospholipids wi
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fatty acid occurs when Fe 3� at t
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4. M. C. Blok, L. L. M. van Deenen,
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47. N. Markova, E. Sparr, L. Wadso,
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87. R. J. Hsieh. Contribution of li
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3 Lipid-Based Emulsions and Emulsif
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may be composed of surface-active c
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2. Cloud Point When a surfactant so
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HLB=7� � (hydrophilic group num
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sion is known as the phase inversio
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strongly with each other rather tha
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� = � (1 � 2.5�) (3) 0 wher
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Figure 8 Biopolymer molecules or ag
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divide homogenization into two cate
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2� �P 1 = (4) r where � is th
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flow rate, decreasing the size of t
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sion be particularly small, it is u
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2. Electrostatic Interactions Elect
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profile of interdroplet pair potent
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Figure 12 Mechanisms of emulsion in
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[Eq. (9)], but at high droplet conc
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alteration in the system’s compos
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Food emulsions always contain dropl
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creaming and sedimentation in emuls
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Foams (E. Dickinson and G. Stainsby
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4 The Chemistry of Waxes and Sterol
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Shrinkage and flash point are two f
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lowing discussion on chemical analy
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violet chromophore. Application of
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Figure 1 Examples of naturally occu
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Scheme 1 Synthesis of mevalonic aci
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Scheme 3 Synthesis of farnesyl pyro
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Scheme 6 Biosynthesis of cholestero
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educe the risk of coronary heart di
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of cholesterol to bile acids (Schem
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Scheme 10 Metabolic alterations of
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sample preparation is usually emplo
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at levels of 1-100 �g per compone
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30. H. W. Chen, A. A. Kandutsch, an
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Biologically Significant Steroids (
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5 Extraction and Analysis of Lipids
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preparing nutritional labeling mate
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polar solvents, such as alkanols, f
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a ternary system consisting of chlo
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lipids from meat or hydrolytic prod
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perature under vacuum. Acid hydroly
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IV. ANALYSIS OF LIPID EXTRACTS Lipi
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ments, etc.) primarily involves chr
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2. Gas Chromatography The GC (or GL
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4. Supercritical Fluid Chromatograp
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Table 3 Solvent Systems that Could
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sibility of determining all compone
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the isolated trans band is another
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ionized molecule has the highest m/
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3. W. R. Bloor. Outline of a classi
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45. Association of Official Analyti
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90. M. N. Vaghela and A. Kilara. A
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132. C. G. Walton, W. M. N. Ratnaya
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6 Methods for trans Fatty Acid Anal
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where A = abc (1) 1 A = absorbance
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methyl elaidate weight equivalents
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method was modified by inclusion of
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may be packed or bound to a column,
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Figure 4 The C-18 region of the gas
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Table 2 Response Factors of Unsatur
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Figure 5 Separation of the phenacyl
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B. Gas Chromatography/IR Spectrosco
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Figure 7 Expanded IR spectral range
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CFAMs before converting them to the
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Figure 8 GC-EIMS chromatographic da
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flame ionization detection. The fat
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levels in excess of 50% of the tota
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22. A. Huang and D. Firestone. Dete
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59. E. G. Perkins and C. Smick. Oct
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97. Association of Official Analyti
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136. J. J. Myer and A. Kukis. Elect
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7 Chemistry of Frying Oils KATHLEEN
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Table 1 Effects of Physical and Che
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Figure 3 Oxidation reactions in fry
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or intermittent frying, oil filtrat
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for the ultimate criteria to evalua
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triacylglycerol polymers, and triac
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100 compounds identified in hydroge
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5. J. Pokorny. Flavor chemistry of
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50. Anonymous. Recommendations of t
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8 Recovery, Refining, Converting, a
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Figure 1 Depiction of hard screw pr
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Figure 2 Depiction of prepress solv
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Seed containing more than the criti
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Figure 5 Steps in processing soybea
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specification of 50% protein is met
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tent of prepress cake is 15-18%, an
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in successive passes through the be
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Figure 10 Additional commonly used
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that follow the DT. Drying at norma
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B. Extraction of Oil-Bearing Fruits
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1. Wet Rendering Wet rendering is t
Page 265 and 266: Figure 15 Process flow sheet for de
Page 267 and 268: Table 2 Properties of Some Crude an
Page 269 and 270: Figure 16 Process flow sheet for al
Page 271 and 272: Figure 17 Process flow sheet for va
Page 273 and 274: for problematic high wax contents (
Page 275 and 276: Figure 19 Oil processing facilities
Page 277 and 278: Figure 20 Depiction of physical ref
Page 279 and 280: 4-7�C, and then to tanks with slo
Page 281 and 282: Figure 21 Hydrogenation reaction me
Page 283 and 284: ond, which may form in its original
Page 285 and 286: Figure 24 Plasticization of margari
Page 287 and 288: Figure 25 Equipment used in expande
Page 289 and 290: selectivity, others claim success i
Page 291 and 292: 48. E. J. Campbell. Sunflower oil.
Page 293 and 294: 9 Crystallization and Polymorphism
Page 295 and 296: Generally, it is accepted that both
Page 297 and 298: Figure 2 A point lattice. (Adapted
Page 299 and 300: structure.... The term ‘fat’ us
Page 301 and 302: Figure 6 Schematic representation o
Page 303 and 304: Figure 8 Polymorphic transitions of
Page 305 and 306: where A = B = C and all are saturat
Page 307 and 308: LMF was found to facilitate the tra
Page 309 and 310: Table 3 Nomenclature and Melting Po
Page 311 and 312: Other mixed-fat systems have been s
Page 313 and 314: Figure 12 Proposed intermediate str
Page 315: 17. K. Larsson. The crystal structu
Page 319 and 320: 10 Chemical Interesterification of
Page 321 and 322: however, since monoacylglycerols an
Page 323 and 324: D. The ‘‘Real’’ Catalyst Th
Page 325 and 326: Figure 3 Proposed reaction mechanis
Page 327 and 328: Figure 5 Kinetics of interesterific
Page 329 and 330: Table 1 Theoretical Triacylglycerol
Page 331 and 332: Cast et al. [55] demonstrated the r
Page 333 and 334: Solid: Liquid: SSS, 33.3% OOO, 8.3%
Page 335 and 336: Figure 11 Changes in the fatty acid
Page 337 and 338: fication and blending on butterfat-
Page 339 and 340: influence of interesterification on
Page 341 and 342: B. Margarines In the manufacture of
Page 343 and 344: Figure 16 Proportion of soild fat o
Page 345 and 346: Tautorus and McCurdy [102] demonstr
Page 347 and 348: ACKNOWLEDGMENTS The authors acknowl
Page 349 and 350: 54. A. Kuksis, M. J. McCarthy, and
Page 351 and 352: 101. S. Zalewski and A. M. Gaddis.
Page 353 and 354: 11 Lipid Oxidation of Edible Oil DA
Page 355 and 356: Figure 1 Molecular orbital of tripl
Page 357 and 358: Figure 3 Singlet oxygen formation b
Page 359 and 360: tween substrate and triplet oxygen
Page 361 and 362: Figure 8 Conjugated and nonconjugat
Page 363 and 364: Figure 11 Conjugated hydroperoxide
Page 365 and 366: etween the oxygen and the oxygen of
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cadienal, trans,trans-2,4-decadiena
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Figure 14 Mechanism for the formati
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Copyright 2002 by Marcel Dekker, In
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Figure 18 Formation and reactions o
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Figure 19 Effect of 0, 0.25, 0.5, a
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Figure 21 Singlet oxygen quenching
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10. E. N. Frankel. Chemistry of aut
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52. A. L. Callison. Singlet oxygen
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12 Lipid Oxidation of Muscle Foods
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A. Initiation The direct reaction o
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undles), and endomysia (sheaths of
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sosomes, etc. A comparison of the l
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dative stability, comparisons betwe
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5. Hydrolysis of Lipids and Associa
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of iron from the heme pocket by coo
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Membrane systems that reduce iron c
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phases of storage [51,187,188]. In
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4. Glutathione While the traditiona
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G. Mathematical Modeling The pathwa
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with this chemical, treated salmon
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multicomponent alternatives [304,30
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and its extent was related to inten
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esponded similarly to vacuum packag
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31. M. L. Greaser, R. G. Cassens, W
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72. J. S. Elmore, D. S. Mottram, M.
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112. J. Kanner, H. Mendel, and P. B
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154. M. B. Korycka-Dahl and T. Rich
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193. P. Akhtar, J. I. Gray, T. H. C
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230. B. Bjerkeng and G. Johnsen. Fr
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271. C.-J. Huang, and M.-L. Fwu. De
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313. M. G. Mast and J. H. MacNeil.
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353. H. A. Ghanbari, W. B. Wheeler,
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13 Fatty Acid Oxidation in Plant Ti
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1. Fatty Acid Activation Prior to d
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L.) leaf peroxisomes exhibits highe
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Figure 2 The glyoxylate cycle in gl
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C. �-Oxidation of Specific Fatty
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cotyledons and partially purified.
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Catabolism of heptanoyl CoA as well
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Figure 6 Peroxisome catabolism of m
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onstrated that �-oxidations requi
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that the member of the enzyme famil
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Plant oxylipin pathway, also named
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Figure 9 Proposed scheme for lipoxy
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oleic acid. These results suggest t
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of the seed pod reversed senescnece
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Figure 11 ‘‘Heterolytic’’-t
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Since 1971, when this physiologic r
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Table 1 Physiological Effects of Ja
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erides, although PUFAs in both form
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9-hydroperoxides and did not attack
Page 469 and 470:
aerial parts of plants, constitutes
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32. J. B. Ohlrogge and V. S. Eccles
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74. L. J. Morris. The mechanism of
Page 475 and 476:
115. B. A. Vick. Oxygenated fatty a
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153. T. K. Peterman and J. N. Siedo
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193. B. A. Stelmach, A. Müller, P.
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230. M. Hamberg, C. A. Herman, and
Page 483 and 484:
14 Methods for Measuring Oxidative
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ated fatty acids during oxidation (
Page 487 and 488:
Several other chemical methods have
Page 489 and 490:
Figure 3 Relationship between perox
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distillate. In case of the distilla
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and ketones. This ion is formed fro
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(Fig. 9), foaming, color, viscosity
Page 497 and 498:
Yen and Duh [69] and Chen and Ho [7
Page 499 and 500:
Figure 10 1 H Nuclear magnetic reso
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to Marquez-Ruiz et al. [93], who us
Page 503 and 504:
35. F. Shahidi, J. Yun, L.J. Rubin,
Page 505 and 506:
77. H. Saito and K. Nakamura. Appli
Page 507 and 508:
15 Antioxidants DAVID W. REISCHE Th
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Hydroperoxide degradation leads to
Page 511 and 512:
e cyclical, with regeneration of th
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A. Synthetic Antioxidants Synthetic
Page 515 and 516:
Propyl gallate (PG) 212.20 White cr
Page 517 and 518:
4. 6-Ethoxy-1,2-dihydro-2,2,4-trime
Page 519 and 520:
Figure 3 Structures of tocopherols
Page 521 and 522:
Figure 4 Structures of ascorbic aci
Page 523 and 524:
4. Enzymatic Antioxidants Glucose o
Page 525 and 526:
would be imprudent to discount any
Page 527 and 528:
droxycoumarin (scopoletin), and hyd
Page 529 and 530:
Figure 7 Structures of sesame antio
Page 531 and 532:
8. G. Minotti. Sources and role of
Page 533 and 534:
50. K. Shimada, H. Muta, Y. Nakamur
Page 535 and 536:
16 Antioxidant Mechanisms ERIC A. D
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For instance, the hydrogen of the h
Page 539 and 540:
Figure 2 Mechanism by which one phe
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Figure 4 Formation of �-tocophero
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Figure 6 Formation of an epoxyquino
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gallate. The antioxidant mechanism
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Figure 8 Products formed from the o
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in food systems, transition metals
Page 551 and 552:
An intersystem energy transfer occu
Page 553 and 554:
V. ALTERATIONS IN LIPID OXIDATION B
Page 555 and 556:
VII. ANTIOXIDANT INTERACTIONS Biolo
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26. J. Kanner, J. B. German, and J.
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68. J. Kanner, F. Sofer, S. Harel,
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17 Fats and Oils in Human Health DA
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Table 1 Classification of LDL Parti
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stearic) had been incorporated by i
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studies contains equal amounts (40-
Page 569 and 570:
Table 5 Influence of 25% Caloric Re
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26. L. D. Cowan, D. L. O’Connell,
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fatty acid margarine on serum lipid
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nutrition examination survey. I. Ep
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18 Unsaturated Fatty Acids STEVEN M
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Figure 1 A generalized scheme for h
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Plant fatty acids provide a seminal
Page 583 and 584:
plants [27]. However, the requireme
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The reciprocal response of the �6
Page 587 and 588:
fatty acids and a dynamic system fo
Page 589 and 590:
production of commercially viable o
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acids synthesized de novo, primaril
Page 593 and 594:
Figure 4 The cis and trans configur
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VI. SYNTHESIS AND ABUNDANCE OF PUFA
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of eicosanoids. It is present in al
Page 599 and 600:
usual NMIFA structures with potenti
Page 601 and 602:
10. S. P. Baykousheva, D. L. Luthri
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47. M. J. T. Alaniz, I. N. T. d. Go
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86. R. J. Henderson and D. R. Toche
Page 607 and 608:
19 Dietary Fats, Eicosanoids, and t
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synthesize EPA from linolenic acid
Page 611 and 612:
Figure 2 Immune responses as a func
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done predominantly in rodent specie
Page 615 and 616:
guinea pigs showed increased immune
Page 617 and 618:
of energy from fat. Feeding the low
Page 619 and 620:
14. P. Purasiri, A. Murray, S. Rich
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20 Dietary Fats and Coronary Heart
Page 623 and 624:
(HDLs). Each class has its own char
Page 625 and 626:
70% of the total amount of choleste
Page 627 and 628:
McGandy and coworkers [8] have care
Page 629 and 630:
Figure 4 Effects of myristic and pa
Page 631 and 632:
3. Polyunsaturated Fatty Acids Poly
Page 633 and 634:
Figure 8 Effects of a mixture of sa
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chemoattractant protein-1 (MCP-1),
Page 637 and 638:
Figure 11 In vitro LDL oxidation. F
Page 639 and 640:
Table 4 Fatty Acid Composition of a
Page 641 and 642:
Figure 12 Processes involved in thr
Page 643 and 644:
as compared with a diet rich in but
Page 645 and 646:
from cardiovascular disease [73,74]
Page 647 and 648:
Figure 16 Schematic representation
Page 649 and 650:
aggregation tendency induced by som
Page 651 and 652:
35. D. R. Janero. Malondialdehyde a
Page 653 and 654:
68. B. J. Burrl, R. M. Dougherty, D
Page 655 and 656:
21 Conjugated Linoleic Acids: Nutri
Page 657 and 658:
method that works optimally in all
Page 659 and 660:
adipose tissue contained two major
Page 661 and 662:
providing rats with 0.5% and 1% CLA
Page 663 and 664:
with the control group. Interesting
Page 665 and 666:
feeding. These findings suggest tha
Page 667 and 668:
In contrast to the antioxidative pr
Page 669 and 670:
esponsible, at least in part, for t
Page 671 and 672:
Yamasaki et al. studied CLA and ant
Page 673 and 674:
17. J. K. G. Kramer, P. W. Parodi,
Page 675 and 676:
55. C. Ip, S. F. Chin, J. A. Scimec
Page 677 and 678:
90. J. S. Munday, K. G. Thompson, a
Page 679 and 680:
126. J. Singh, R. Hamid, and B. S.
Page 681 and 682:
22 Dietary Fats and Obesity DOROTHY
Page 683 and 684:
For example, some have reported tha
Page 685 and 686:
the fat component and the other hal
Page 687 and 688:
shows that there is a negative corr
Page 689 and 690:
C. Influence of Dietary Fat on Fatt
Page 691 and 692:
Figure 1 Signal transduction cascad
Page 693 and 694:
mals indicate that high-fat feeding
Page 695 and 696:
processes. Numerous studies provide
Page 697 and 698:
monier (252) suggested that in cert
Page 699 and 700:
4. National Task Force on Obesity.
Page 701 and 702:
46. F. Lucas, K. Ackroff, and A. Sc
Page 703 and 704:
90. D. Mela. Sensory preference for
Page 705 and 706:
133. D. R. Romsos and G. A. Leveill
Page 707 and 708:
169. T. Ide, H. Kobayashi, L. Ashak
Page 709 and 710:
207. A. B. Awad and E. A. Zepp. Alt
Page 711 and 712:
246. Y. B. Kim, R. Nakajima, T. Mat
Page 713 and 714:
23 Lipid-Based Synthetic Fat Substi
Page 715 and 716:
operations, and in theory, can repl
Page 717 and 718:
Table 3 Types of Lipid-Based Fat Su
Page 719 and 720:
Figure 1 Structure of sucrose polye
Page 721 and 722:
Figure 3 Synthetic scheme for olest
Page 723 and 724:
Figure 5 Structure of sorbitol poly
Page 725 and 726:
Figure 8 Structure of raffinose pol
Page 727 and 728:
Figure 11 Structure of methyl galac
Page 729 and 730:
Table 4 Some Properties of Sucrose
Page 731 and 732:
Figure 15 Structure of trialkoxytri
Page 733 and 734:
Figure 19 Structure of polysiloxane
Page 735 and 736:
inversely related to the degree of
Page 737 and 738:
Table 8 Some Nutritional Uses of No
Page 739 and 740:
genetic assay in Chinese hamster ov
Page 741 and 742:
IX. PERSPECTIVES With the approval
Page 743 and 744:
30. L. Osipow, F. D. Snell, D. Marr
Page 745 and 746:
72. K. W. Miller and P. H. Long. A
Page 747 and 748:
24 Food Applications of Lipids FRAN
Page 749 and 750:
Table 3 Typical Fatty Acid Composit
Page 751 and 752:
are significant differences in oil
Page 753 and 754:
Table 6 Production and Disappearanc
Page 755 and 756:
and margarine should be pronounced
Page 757 and 758:
Table 8 Approximate Fatty Acid Comp
Page 759 and 760:
egions of the world. In addition to
Page 761 and 762:
50-55% fat. Production figures for
Page 763 and 764:
utter with up to 5% of another fat
Page 765 and 766:
market with high overrun and good s
Page 767 and 768:
11. D. Hettinga. Butter. In: Bailey
Page 769 and 770:
25 Lipid Biotechnology KUMAR D. MUK
Page 771 and 772:
Table 1 Lipid Content and Levels of
Page 773 and 774:
as 80% lipids of which about 90% ar
Page 775 and 776:
Table 6 Wax Esters Formed by Acinet
Page 777 and 778:
Some other biosurfactants include e
Page 779 and 780:
Figure 6 Microbial production of hy
Page 781 and 782:
Figure 9 Microbial production of ke
Page 783 and 784:
Figure 12 Microbial production of k
Page 785 and 786:
Table 8 Specificity of Triacylglyce
Page 787 and 788:
Figure 16 Lipase-catalyzed transest
Page 789 and 790:
Figure 20 Preparation of structured
Page 791 and 792:
Figure 24 Preparation of monoacylgl
Page 793 and 794:
Fatty acid esters of polyols are us
Page 795 and 796:
Figure 29 Specificity constants in
Page 797 and 798:
Figure 31 Preparation of concentrat
Page 799 and 800:
Figure 35 Enrichment of very long c
Page 801 and 802:
B. Phospholipases Figure 38 shows t
Page 803 and 804:
Lysophosphatidic acid has been prep
Page 805 and 806:
Figure 41 Transesterification of ph
Page 807 and 808:
Figure 46 Enzymatic production of h
Page 809 and 810:
Figure 50 Hydration of linoleic aci
Page 811 and 812:
Figure 51 Principle of enzymatic de
Page 813 and 814:
13. E. Molina Grima, J. A. Sánchez
Page 815 and 816:
53. M. Powalla, S. Lang, and V. Wra
Page 817 and 818:
96. R. Schuch and K. D. Mukherjee.
Page 819 and 820:
138. K. D. Mukherjee and I. Kiewitt
Page 821 and 822:
179. U. T. Bornscheuer, H. Stamatis
Page 823 and 824:
222. H. Stamatis, V. Sereti, and F.
Page 825 and 826:
265. S. R. Moore and G. P. McNeill.
Page 827 and 828:
303. C. Virto, I. Svensson, and P.
Page 829 and 830:
343. E. Blee and F. Schuber. Regio-
Page 831 and 832:
26 Microbial Lipases JOHN D. WEETE
Page 833 and 834:
ation. Fungal lipases typically exi
Page 835 and 836:
of buffer A containing 1 M ammonium
Page 837 and 838:
without shaking for 30 minutes, whe
Page 839 and 840:
the C domain of the protein through
Page 841 and 842:
Figure 2 (Continued) Figure 3 Schem
Page 843 and 844:
on the substrate and presence or ab
Page 845 and 846:
Table 3 Selectivities of Multiple E
Page 847 and 848:
lanuginosa, C. antarctica B, Rhizop
Page 849 and 850:
10. C. T. Hou and T. M. Johnston. S
Page 851 and 852:
53. C. C. Akoh. Enzymatic synthesis
Page 853 and 854:
94. D. M. Lawson, A. M. Brzozowski,
Page 855 and 856:
135. B. K. Yang and J. P. Chen. Gel
Page 857 and 858:
27 Enzymatic Interesterification WE
Page 859 and 860:
esterification of butterfat at 40
Page 861 and 862:
also found to decrease the crystall
Page 863 and 864:
T c than animal fats. The T c for v
Page 865 and 866:
in the oxyanion hole is the amino a
Page 867 and 868:
of the interface as a measure of su
Page 869 and 870:
Figure 11 Catalytic mechanism for l
Page 871 and 872:
Figure 13 Triacylglycerol products
Page 873 and 874:
imization of interesterification, a
Page 875 and 876:
supports include high losses of act
Page 877 and 878:
is a thin layer located directly ne
Page 879 and 880:
volume per year. The volumetric act
Page 881 and 882:
and removal of reactants and produc
Page 883 and 884:
vinyl chloride. In a membrane such
Page 885 and 886:
of the enzyme. Animal and plant lip
Page 887 and 888:
esters as surface active agents dur
Page 889 and 890:
14. P. Kalo, H. Huotari, and M. Ant
Page 891 and 892:
57. F. Pabai, S. Kermasha, and A. M
Page 893 and 894:
94. J. Kurashige. Enzymatic convers
Page 895 and 896:
28 Structured Lipids CASIMIR C. AKO
Page 897 and 898:
Figure 2 Structure of a physical mi
Page 899 and 900:
2. Medium Chain Fatty Acids and Tri
Page 901 and 902:
Figure 4 Pathway for eicosanoid bio
Page 903 and 904:
leukotrienes (hydroxy fatty acids a
Page 905 and 906:
Figure 7 Structure of Benefat (bran
Page 907 and 908:
cause of the huge capital investmen
Page 909 and 910:
Figure 8 Reaction scheme showing ac
Page 911 and 912:
alters the native conformation of t
Page 913 and 914:
Table 6 Advantages of Enzymatic App
Page 915 and 916:
Figure 13 Stereochemical configurat
Page 917 and 918:
IV. NUTRITIONAL AND MEDICAL APPLICA
Page 919 and 920:
Table 9 Factors That Affect Outlook
Page 921 and 922:
27. G. O. Burr and M. D. Burr. A ne
Page 923 and 924:
69. M. Reslow, P. Aldercreutz, and
Page 925 and 926:
113. C. J. Gollaher, E. S. Swenson,
Page 927 and 928:
29 Biosynthesis of Fatty Acids and
Page 929 and 930:
olive (Olea europea), and avocado (
Page 931 and 932:
Table 2 (Continued) Fatty acid a Sp
Page 933 and 934:
2. Basic Features The functional un
Page 935 and 936:
Hydroxy-Acyl ACP dehydrase (Crotony
Page 937 and 938:
Figure 1 Steps of fatty acid biosyn
Page 939 and 940:
The three KAS isoforms are assigned
Page 941 and 942:
chain length acyl-ACP residues, and
Page 943 and 944:
10-carbon and 14- to 16-carbon acyl
Page 945 and 946:
In developing castor seed, BC and A
Page 947 and 948:
(viz., seed, fruit) genes, and this
Page 949 and 950:
Figure 4 Fatty acid modification re
Page 951 and 952:
12-MO, the cDNA for the enzyme has
Page 953 and 954:
Table 5 Enzyme Activities Involved
Page 955 and 956:
of reactivity is also supported by
Page 957 and 958:
tems, PTAP is a likely candidate fo
Page 959 and 960:
ifying 18:1 �9 and deacylating 18
Page 961 and 962:
oils (rich in 18:3 �6,9,12), and
Page 963 and 964:
eticulum subpopulations also finds
Page 965 and 966:
CPT (DAG ↔ PC) Extensive involvem
Page 967 and 968:
available (cf. Sec. V.C.4 and Ref.
Page 969 and 970:
erol backbone of triacylglycerols c
Page 971 and 972:
14. E. Heinz. Biosynthesis of polyu
Page 973 and 974:
56. R. C. Clough, A. L. Matthis, S.
Page 975 and 976:
91. R. J. Heath and C. O. Rock. Eno
Page 977 and 978:
124. R. Schuch, F. M. Brück, M. Br
Page 979 and 980:
Kader and P. Mazliak, eds.). Kluwer
Page 981 and 982:
197. Y. Cao, K. Oo, and A. H. C. Hu
Page 983 and 984:
241. M. C. Dobarganes, G. Márquez-
Page 985 and 986:
30 Genetic Engineering of Crops Tha
Page 987 and 988:
existing genes in the host plant ge
Page 989 and 990:
It becomes the plant breeder’s jo
Page 991 and 992:
previously mentioned low-linolenic
Page 993 and 994:
develop and apply methods, evaluate
Page 995 and 996:
enzyme with high activity for placi
Page 997 and 998:
activity in the oil palm mesocarp s
Page 999 and 1000:
Figure 4 Commercial applications of
Page 1001 and 1002:
and mildness. Because the perennial
Page 1003 and 1004:
In the context of developing increa
Page 1005 and 1006:
occurs esterified at the sn-2 posit
Page 1007 and 1008:
as high as coconut or palm kernel o
Page 1009 and 1010:
systems. Key to assessing the oppor
Page 1011 and 1012:
property encouraged us to look for
Page 1013 and 1014:
mercial lauric fats based on both P
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