a study of the quality of a local herbal tea and volatiles of parinari ...

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CERTIFICATE OF APPROVAL The undersigned certify that this thesis represents the student’s own work and effort and has been submitted with our approval. Signature: Date: Saka J.D.K., PhD (Professor) Main Supervisor Signature: Date: Monjerezi M., M.Eng (Lecturer) Member, Supervisory Committee Signature: _______________________ Date: ____________________________ Mwatseteza J.F., PhD (Senior Lecturer) Head of Department ii
DEDICATION I dedicate this thesis to my parents who taught me the value of education and to my sister for her support in so many different endeavors. I am greatly indebted to them for their continued love and support. iii
Page 1 and 2: A STUDY OF THE QUALITY OF A LOCAL H
Page 3: DECLARATION BY THE CANDIDATE I the
Page 7 and 8: ABSTRACT This study concerned the q
Page 9 and 10: TABLE OF CONTENTS DECLARATION BY TH
Page 11 and 12: 2.6.5 F. ancylantha Schweinf ......
Page 13 and 14: 3.10.1 GC and GC-MS conditions for
Page 15 and 16: LIST OF TABLES Table 4.1: Quality p
Page 17 and 18: 1.1 Background CHAPTER 1: INTRODUCT
Page 19 and 20: Considering the benefits associated
Page 21 and 22: A local herbal tea made from F. anc
Page 23 and 24: green tea, partly because of the ox
Page 25 and 26: average level of 3 % along with ver
Page 27 and 28: alcohols, aldehydes, esters, ethers
Page 29 and 30: Scheme 2.1: : Enzymatic degradation
Page 31 and 32: In Scheme 2.2 linolenic acid is tra
Page 33 and 34: alkylating agent. DMAPP possesses a
Page 35 and 36: cinnamaldehyde and coumarin (cinnam
Page 37 and 38: mixing and agitating a liquid or so
Page 39 and 40: method whose isolation efficiency d
Page 41 and 42: immersed directly into the sample s
Page 43 and 44: (1958) as a parameter for identifyi
Page 45 and 46: natural product was identified. The
Page 47 and 48: (Larkcom, 2007). Taro leaves and le
Page 49 and 50: 2.6.5 F. ancylantha Schweinf F. anc
Page 51 and 52: 2 cm broad, valvate, with 1-3 subgl
Page 53 and 54: Fruits and vegetables were placed i
Page 55 and 56:
3.4 Preparation of chemicals and re
Page 57 and 58:
and SII (Robert and Smith, 1963). T
Page 59 and 60:
Where the (E(1cm)0.02 %) value for
Page 61 and 62:
Distillation was carried out for 4
Page 63 and 64:
done to remove particles of Na2SO4.
Page 65 and 66:
3.8.6 Hydrodistillation and solvent
Page 67 and 68:
experiment was continued for 57 min
Page 69 and 70:
3.10 Identification of volatile con
Page 71 and 72:
CHAPTER 4: RESULTS AND DISCUSSION 4
Page 73 and 74:
Significant (p
Page 75 and 76:
Using the hydrodistillation and sol
Page 77 and 78:
4.3 Volatile constituents of S. coc
Page 79 and 80:
The SPME method identified 11 compo
Page 81 and 82:
Esters constituted (83.3 % %) while
Page 83 and 84:
Table 4.6: Compounds identified aft
Page 85 and 86:
4.4.2 Identity of volatile flavour
Page 87 and 88:
Table 4.9: Compounds identified aft
Page 89 and 90:
Seven compounds made up oof f carbo
Page 91 and 92:
CHAPTER 5: CONCLUSIONS AND RECOMMEN
Page 93 and 94:
5.2 Recommendations In order to exp
Page 95 and 96:
Chalton, A.J., Davis, A.L., Jones,
Page 97 and 98:
G1Innovations. (2003). Innovations
Page 99 and 100:
sims F.Flavicarpa Degner) as determ
Page 101 and 102:
agricultural and Pastoral communiti
Page 103 and 104:
Reineccius, G., and Heath, H.B. (20
Page 105 and 106:
Sawamura, M. (Ed.). (2010). Citrus
Page 107 and 108:
Vas, G., and Vekey. K. (2004). Soli
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