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Fac-simile Scheda Linee di Ricerca - Federalimentare

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TAG from collision-induced fragments; bromination allowed clear separation of saturated and unsaturated TAG.Differences in the fatty acid composition amongst homologous isobaric TAG of <strong>di</strong>fferent structures wereidentified by post-source decay analysis of hydrogenated precursors. MALDI-TOF has proven advantageous forsimultaneously detecting TAG at various unsaturation degrees within <strong>di</strong>fferent TAG classes (Cn). The dataprovide insight into animal fat <strong>di</strong>fferentiation on a molecular basis, increasing the analytical description to a newlevel, proving the so far underestimated capacity of MALDI-TOF MS in this field.2. Mamone G, Ferranti P, Rossi M, Roepstorff P, Fierro O, Malorni A, Addeo F. Identificationof a peptide from alpha-glia<strong>di</strong>n resistant to <strong>di</strong>gestive enzymes: implications for celiac <strong>di</strong>sease.J Chromatogr B Analyt Technol Biomed Life Sci. 15;236-241, 2007Current knowledge in<strong>di</strong>cates that both innate and adaptive immune responses are involved in Celiac <strong>di</strong>sease(CD) driven by <strong>di</strong>fferent glia<strong>di</strong>n peptides. By studying a representative recombinant -glia<strong>di</strong>n form, a further 25-mer peptide resistant to gastric, pancreatic, and human intestinal brush-border membrane enzymes was detected.This peptide latter encompasses the sequence 31–43 known to elicit the innate immune response in CD. Theresistance of 25-mer, as well as that of the already described 33-mer related to the CD adaptive immuneresponse, was confirmed on a standard flour wheat sample representative of the most widespread Europeanvarieties.3. Caira S, Calabrese Mg, Lilla S, Vangone P, Nicolai Ma, Chianese L, Addeo F. Milk proteinsand their antigenicity . In Immunochemistry in Dairy Research, pp. 1-35, 2006 (ResearchSignpost Rosa Pizzano E<strong>di</strong>tor)The main elements of milk proteins can be summarized as follows: variable phosphorylation degree of the fourcaseins, variable glycosylation of κ-CN and α-La, frequent presence of casein peptides generated by the action ofendogenous and bacterial enzymes, wide molecular mass range whey proteins, easy thermodenaturation of wheyproteins. With more knowledge of the primary structure, the location of the phosphate groups on the caseinchains, and intra-and inter-protein <strong>di</strong>sulphide bond exchanges during milk processing, particularly during<strong>di</strong>gestion by proteolytic enzyme, the function and the role of most important milk proteins are now betterunderstood. Further insight into the basic properties of milk proteins should lead to a greater understan<strong>di</strong>ng ofthe natural function of milk and the roles its components play in human nutrition. In this paper milk proteins arereviewed in the perspective of preventing milk allergies in newborns.4. Pizzano R, Manzo C, Nicolai Ma, Addeo F. Detection of milk protein adducts using antipeptideantibo<strong>di</strong>es. In Ibidem, pp. 121-131, 2006The anti-peptide antibody technology was exploited in order to obtain immunochemical reagents for detectingprotein adducts arising in milk owing to heat treatments or exposure to formaldehyde. Properly designedpeptides, mimicking the novel structures of the protein adducts, were used as model antigens. The polyclonalantibo<strong>di</strong>es raised against these peptides recognized effectively the targeted structures in the protein adducts and,moreover, they proved to be able to <strong>di</strong>stinguish mo<strong>di</strong>fied from native protein components in milk and cheesesamples.5. Addeo F, Caira S, Chianese L, Lilla S. Bioactive peptides from milk proteins. Focus onphosphopeptides and enzyme me<strong>di</strong>ated casein peptides. In Microorganisms as healthsupporters. Probiotics and bioactive peptides. The new Biotherapeutic Frontier, pp. 206-326,2007 (MOFIN-ALCE E<strong>di</strong>tor, Novara)The casein proteolysis gives rise to bioactive peptides that have special physiological functions. Bioactivity ofthe peptides encrypted in milk proteins is latent until they are released and activated by enzyme hydrolysis.Many milk-derived peptides have revealed multi-functional properties in the sense that two or more <strong>di</strong>fferentbiological effects are exerted by single peptide sequences. These overlapping primary structures of caseins havebeen also defined as strategic zones because they seem to be intrinsically protected from proteolytic <strong>di</strong>gestions.SISTAL - SOCIETA’ ITALIANA DI SCIENZE E TECNOLOGIE ALIMENTARIDipartimento <strong>di</strong> Scienze e Tecnologie Agroalimentari, Università degli Stu<strong>di</strong> della TusciaVia San Camillo de Lellis, 01100 ViterboTel.: 0761- 35 74 94/7 , Fax: 0761- 35 74 98, e-mail: mmoresi@unitus.it270

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