Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Central South Forestry Universith》 2002-02
Add to Favorite Get Latest Update

The Separation and Purification of Amylose and Amylopectin from Acorn Starch

XIE Tao,CHEN Jian hua,XIE Bi xia (College of Resources and Environment of CSFU, Zhuzhou 412006,Hunan, China)  
Acorn starch is made from nine oak plants such as C.seguinii Dode and the amount of each amylose is measured by iodine voltage analysis and Juliano spectro photometric method. Highly purified amylose and amylopectin can be successively separated from acorn starch through 1 butnol precipitation and re crystallization. The results show that the amylose content of each acorn starch is 20% or so, whereas the yields of amylose and amylopectin are about 50% and 40% of their unfeigned contents; that for acorn amylose and amylopectin, the iodine affinity values are 18.94%~19.19% and 0.35%~0.52%, the blue values are between 0.74~1.20 and 0.14~0.19, and the λ max of I 2 KI blue color is between 600~620 nm and 550~570 nm,respectively; and that the purity of acorn amylose is above 95%.
【Fund】: 湖南省自然基金重点项目 (编号 99JJ10 0 4)
【CateGory Index】: Q946
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved