期刊
INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS
卷 22, 期 3, 页码 377-398出版社
SPRINGER
DOI: 10.1007/s10989-016-9514-z
关键词
Bioactive; Peptides; Hydrolysis; Functional food
Recently the rise in noncommunicable diseases and side effects of drugs has promoted the research in food components with biologically active molecules. These bioactive components are vital in reducing and regulating the onset of such chronic degenerative diseases. Many food derived peptides are biologically active fragments encrypted within the primary protein sequence in nascent (inactive) form, hence also called 'cryptides'. These bioactive peptides range in size from 2 to 50 amino acids. They function beyond their basic nutritional benefits. Upon oral administration, these peptides play various roles such as opiate like, antioxidative, immunomodulatory, antihypertensive, hypocholesterolemic, mineral binding, antiobesity and antimicrobial. Both animal and plant proteins are rich sources of bioactive peptides having specific physiological and biochemical functions. Digestion of proteins in vivo or in vitro produces free amino acids and peptides which enter circulatory system and exert systemic effect. Bioactive peptides can be produced in vivo through gastrointestinal digestion whereas in vitro through chemical processing of food proteins with acid, alkali, heat and enzymatic hydrolysis either by digestion or fermentation. Protein hydrolysates being rich source of bioactive peptides can serve as an alternative to intact protein and elemental formula in the development of functional foods.
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