| 摘要 |
A method to prepare D-glucosamine hydrochloride, obtaining product from raw material of citric acid residue from citric acid production by means of fermentation, and through processes of hydrolysis, suction filtering, concentration etc. Due to recovery of the citric acid residue, the present invention alleviates the environment pollution caused by the residue; Moreover, the D-glucosamine hydrochloride product produced from the raw material of citric acid residue is vegetarian D-glucosamine hydrochloride, without fishy odor and heavy metal pollution, safe and environment-friendly, with product purity up to 98-102%, and in line with the U.S. Pharmacopeia (USP) 32nd edition quality standards; Meanwhile, due to sufficient resources of the raw material, there is no limitation of resources for production, and production cost is low; the present invention further saves the cost to treat environment pollution and has a good effect of recycling economy; More importantly, it overcomes people's bias in this technical field, reduces the time of hydrolysis reaction, and enhances product output and production efficiency while ensuring a high product purity. |
