Sinorey Foods ltd, which was located in mainland China, we only focus on the enzymatic or fermented products research, develop and manufacture, we currently can provide the below products for your multiple choice, of course, they are functional, such as Transglutaminase, l-ap(ascorbyl palmitate), fos(Fructo oligosacchride),Nisin, Natamycin, Food grade Catalase, gaba, l-theanine and so on