Evaporated Milk Ice Cream Recipe No Machine Evaporated Milk Substitute In Recipe Evaporated Milk Cake Icing Recipe Evaporated Milk Icing Recipe Carnation
Casein May be defined as the major protein which is precipitated at pH 4.6 and is exclusive to milk. It is present in spherical bodies as micelles which vary in size with negative surface charge. The caseins of milk may be sub-divided into five main classes αs1 αs2 β gamma and k-caseins. In milk casein is present in combination with calcium in the form of calcium caseinate or more precisely calcium hyhdrogen caseinate. Whey proteins Are those in the whey fraction after the precipitation of casein at pH 4.6. These are the alpha-lactalbumin beta-lactoglobulin immunoglobulins lactoferrin transferrin proteose-peptone fractions etc. Most of these are globular proteins subject to heat denaturation. α-lactalbumin exists in variants A and B forms and is susceptible to denaturation by unfolding of the tertiary structure. β-lactoglobulin is identical to blood globulin and insoluble in water and is responsible for the transfer of antibodies.
Short and medium chain fatty acids with 4-12 carbon atoms which occur at comparatively higher concentration in milk fat reported to have antibacterial and fungistatic activity. Milk fat plays another important role in preventing tooth decay by forming a protective coat over the surface of enamel. It is composed of triglycerides of fatty acids. A fatty acid molecule is composed of hydrocarbon chain and carboxyl group. Triglycerides are of two types simple and complex. In simple all the three fatty acids are of same nature whereas complex triglycerides on hydrolysis give glycerol and different fatty acids. The milk fat exists in the form of small globules of sizes ranging from 2 to 10 microns with different glycerides of low melting points in suspension.
Fat Soluble Vitamins - include vitamins A D E and K. Water-soluble vitamins are the B1 (thiamine) B2 (riboflavin) B6 (pyridoxine) Biotin Niacin (nicotinic acid) Pantothenic Acid Para-amino benzoic acid Inositol Choline Folic acid B12 and Ascorbic acid. Fat rich milk products contain large quantities of fat soluble vitamins whereas whole milk skim milk buttermilk and whey are a good source of water soluble vitamins. Minerals The portion left after ashing of milk at 150ºC is known as the ash of milk and is composed of various inorganic constituents. Ash forms about 0.75 % of milk and plays a very important role in milk and is basic in character. The minerals in milk consist principally of the chlorides citrates and bicarbonates of calcium magnesium potassium and sodium.