FS HN 101 Lecture Notes - Lecture 2: Kwashiorkor, Emulsion, Ficain
24 Jan 2018
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Peanut exec gets 28 years in prison for deadly salmonella outbreak. Imitation apple juice not real, company knew, fraud. Monomer: amino acids all contain nitrogen, oxygen, carbon and some contain sulfur. Two amino acids bound together are called dipetides. 2-10 aa bound together are called oligopetides. Peptide bond: bond holding 2 aa together. Polypeptide- more than 10 aa, usually called a protein. 22 major aa: different combos make different proteins. ( muscle, hair, enzymes, gluten, etc. ) Aa and proteins have both some acid and basic groups. Pvt tim hall phenylaline, valine, theronine, trytophan, isolecine, methionine, arginine, leucine, lysine. Animal and soy proteins - considered to be better sources of essentialaa. Quarternary structure ( proteins associate) tertiary structure ( folding) Presence of essential aa - chemical test. Wheat & corn are low in lysine. Soybean- low in methionine but sufficient for humans. Important functions of protein in the body and foods.
