酱油是以大豆、小麦为原料,由霉菌、酵母和细菌综合作用而制成的调味品.它含芳香成分极为复杂,主要成分是乙醇.另外,含乙酸、丙酸、乙酸乙酯、乙酸丁酯、乙醛等,还有由硫氨基酸转化而来的硫醇、甲基硫等有机化合物.甲基硫这种物质是酱油具有特殊香味的主要成分.酱油是呈咸味的调味品, Soy sauce is a condiment made of soybeans and wheat as a raw material combined with molds, yeasts and bacteria. It contains a very complex aromatic component and is mainly composed of ethanol. In addition, it contains acetic acid, propionic acid, ethyl acetate and butyl acetate Esters, acetaldehyde, etc., as well as organic compounds such as mercaptans, methylsulfides and the like converted from sulfur amino acids Methylthio This substance is the main component of soy sauce with special flavor.Soy sauce is salty seasoning,