Explain about the Food analysis and chemistry?

Investigation of the basic composition and physical, organic and biochemical properties of food constituents at the molecular level; the changes that food constituents undergo during processing and storage. These areas also involve changes in texture, colour, flavour, and determination of the effects of processing on the nutritive value of foods. Techniques used by food analysts for proteins; carbohydrates; lipids, fats and oils; colloids; enzymes; vitamins; emulsifiers; acids; oxidants; antioxidants; pigments and flavours; secondary plant metabolites in food.