Abstract:

Beverage made by all-bacterium zymosis is the advanced one, which contains a lot of nutritious constituents like amino acids, vitamins and so on. Amino acid is a requisite nutrition for human being. Hence, the measuring of amino acid in all kinds of food is of great importance in evaluating food quality. Among many methods dealing with the measurements of amino acid, capillary gas chromatography is more often used because of its good rapidity, sensitivity, selectivity and so on.