L-Tryptophan is an essential amino acid. This product appears as a white to yellowish crystalline powder. It is found in many foods including turkey, chocolate, oats, and dairy products. L-Tryptophan can be used as a food additive and in nutritional supplements.


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A & Z Food Additives Co. Ltd. specializes in researching, developing, and exporting quality ingredients and dietary supplements. Their additives include emulsifiers, sweeteners, preservatives, anti-caking agent, bulking agents, and many more. To remain competitive, the company is focused on developing novel ingredients and providing excellent service.


A & Z Food Additives Co. Ltd

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