... and rich in protein and amino acids. 2,Good Solubility . Aqueous solution is clear ,lucent and light, no indiscerptible impurities.3 ... materials, and vitamins, gene-engineering, bio-engineering and other industries. It is good organic nitrogen source of industrial fermentation culture medium and can ... cool, ventilating and dry place, please use up once it is open. If not, please seal for further use.