Advance in the Study of L-Tryptophan

摘要：

In this paper, physicochemical properties of L-tryptophan and the applications in the fields of medicine, food and feed additives are reviewed. The synthesis technique of L-tryptophan generally can be divided into direct fermentation method, microbial conversion method and enzymatic method. The separation and purification of L-Tryptophan are usually carried out by ion exchange method combined with crystallization. Crystals of L-tryptophan with large particle size can be obtained by proper control of crystallization process. In addition, it has been discovered that polymorph of L-tryptophan can be obtained by sublimation and other new polymorphs may be formed by changing crystallization conditions.

关键词： L-tryptophan synthesis crystallization morphology polymorphs

作者: Chen Qiaoli Wang Jingkang

作者单位: School of chemical engineering, Tianjin University, Tianjin 300072, P. R. China

会议类型: 国际会议

会议名称: International Symposium on Crystal Engineering and Drug Delivery System 2009(2009晶体工程与药物传送系统国际会议)

会议地点: 天津

会议语种:英文

页码: 82-88

在线出版日期: 2009-09-05（万方平台首次上网日期，不代表论文的发表时间）