Foods and Nutrition 1021 Chapter Notes - Chapter 6: Peptide Bond, Electric Charge, Chemical Bond

• School: Western University
• Department: Foods and Nutrition
• Course: Foods and Nutrition 1021
• Professor: Jennifer Broxterman

Document Summary

Proteios means of prime importance: primary material of life. Proteins: c, h, o, n, strands of amino acids. Ca(cid:374)ada(cid:859)s food guide & protei(cid:374: meats & alternatives group, milk and alternative group, foods richest in protein carry an array of vitamins & minerals, including, vitamin b12, zinc, calcium, generally lack, vitamin c, folate. Dietary sources of protein: protein is abundant in the canadian diet, meat and dairy contain high levels of protein, significant amount of dietary protein also comes from cereals, grains, nuts, and legumes. Amino acids (aa): 20 different kinds known: building blocks of protein, amine group (n-containing, acid group, side chain. Peptide bond: chemical bond formed between amine group end of one aa and the acid group end of the next. Essential amino acids (indispensable: cannot by synthesized at all or are present in insufficient amounts to meet physiologic needs, must be supplied by the diet, 9 essential aa, histidine, isoleucine, leucine, lysine, methionine, phenlalanine, threonine,