Transglutaminase, referred to as TG enzyme, English Name: Transglutaminase exists widely in human, animal, plant and microorganism in senior, is a kind of acyltransferase. Early is extracted from animal tissues, but fewer sources, separation and purification of complex. Until 1989, began to use biological fermentation production of microbial transglutaminase.

     TG enzyme can form a kind of glutamate and lysyl covalent bond in the muscle protein molecules, the covalent forces strong, is 70 times the two disulfide bond energy, can make the protein molecules more closely together, maintaining the formation of gel system of muscle protein, so as to improve the meat quality of taste.