FDSC 1049 Lecture : Protein Chemistry Student Notes Fall 2016
Document Summary
Physical properties: polymers (links) of amino acids joined by peptide bonds, referred to as polypeptides, 4 calories/gram, conjugated or unconjugated. _unconjugated___ = not bound to any other substances and contain only amino acids. ____conjugated__ = combined with non-protein substances such as a carbohydrates and/or lipids into complex molecules. Glycoprotein: __protein and sugar___ (egg white ovalbumin and ovomucoid) Phosphoproteins: contain _protein and lipids__ groups in their structure (milk casein) ___protein denaturation____ the unfolding of a protein structure, usually due to acid or heat: the normal spatial arrangements and the proteins functional properties are altered or lost when this. Fdsc 1049 occurs: examples, __cottage cheese__ is made by adding acid and high temperature which causes coagulation to occur. Protein-protein interaction takes: scrambled eggs change by heat. place. Food proteins are typically one of two shapes: _globular___ spherical like a ball, most are soluble in water, ex: _myoglobin______, __fibrous___ elongated like a twisted rope, generally insoluble in water, ex: _collagen_______
