... from glutamic acid through glutamate decarboxylase, GABA, a kind of natural non-protein amino acid, is an important neurotransmitter of the ... specifications: 20 kg/Barrel 1kg*20bags/box.Usages: 1. as raw materials for the medicines, health products and cosmetics. 2. directly ... into the tea, beverages and milk products. 3. as the natural ingredients used in coffee, chocolate, apple juice, cocoa, yogurt, ...