期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 25, 期 11, 页码 2029-2034出版社
SPRINGER
DOI: 10.1007/s11274-009-0104-5
关键词
Astaxanthin; Autoclave; Extractability; Hydrochloric acid; Phaffia rhodozyma
Phaffia rhodozyma is one of the most important natural sources of the carotenoid astaxanthin, and the key process for extracting intracellular astaxanthin is disrption of the thick cell wall. In this work, an improved process for cell disruption and astaxanthin extraction from Phaffica rhodozyma was studied using an autoclave at low acid concentration. Under the optimum conditions (HCl 0.5 M and autoclave pressure 0.1 Mpa, 15 min), the relative residual astaxanthin and astaxanthin extractability reached 90.4 +/- 3.5% and 84.8 +/- 3.2%, respectively. The scanning electron microscopy pictures showed that all yeast cells shattered into fragments after autoclave treatment at low acid concentration condition, whereas cells were intact or partly broken after treatment by some other physical and chemical processes. This new method left no residual toxin and gavehigher extraction recovery, with good prospects for industrial use.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据