古龙酸

构建基因工程菌发酵产生维生素C的前体2-酮基-L-古龙酸

Production of 2-KLG from glucose by constructing recombinant bacteria

从古龙酸（古洛糖酸）到VC的收率达83%以上。

The ascorbic acid solution was refined to obtain the pure product . Its yield from gulonic acid was over 83 % .

通过对所获晶体的红外光谱分析、熔点测定、纸层析鉴定，证明所获晶体确为维生素C前体2－酮基－L－古龙酸（2－KGA）。

Analysis through infrared spectrum , melting point determination , and paper chromatography , the crystal was identified as 2 - keto - gluconic acid .

阳离子交换树脂催化古龙酸甲酯的非均相动力学

Heterogeneous kinetics of ion-exchange resin catalyzed esterification of gulonic acid with methanol

古龙酸结晶母液的回收利用古龙酸酯转工艺研究

Studies on Esterification and Conversion Technology of Gulonic Acid

膜蒸馏法浓缩古龙酸水溶液的初步研究

Preliminary study on the concentration of α - keto - α - gulonic acid solution by membrane distillation

用超过滤、反渗透技术处理古龙酸发酵液的研究

Study on the Treatment of Fermentative Solution of α - Keto - α - Gulonic Acid by Technology of Ultrafiltration and Reverse Osmosis

选用强酸性阳离子交换树脂代替浓硫酸催化剂，对古龙酸的甲酯化反应进行了探索性研究。

In this paper , the strong acid cation exchange resin has been studied as the catalyst for the esterification of gulonic acid .

介绍了二步发酵法与葡萄糖直接发酵法的研发现状，探讨了2-酮基-L-古龙酸的分离提取工艺。

After present situation of R & D of the two steps fermentation method and the glucose_substrate fermentation method are introduced , the separation and purification processes of 2_keto_L_gluconic acid are discussed .