XYLITOL FROM RICE HUSKS BY ACID HYDROLYSIS AND Candida YEAST FERMENTATION

被引：0
作者：
Rambo, Magale K. D. [1 ]
Bevilaqua, Daiane B. [1 ]
Brenner, Carla G. B. [1 ]
Martins, Ayrton F. [1 ]
Mario, Debora N. [2 ]
Alves, Sydney H. [2 ]
Mallmann, Carlos A. [3 ]
机构：
[1] Univ Fed Santa Maria, Dept Quim, BR-97105900 Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Dept Microbiol, BR-97105900 Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Dept Vet Prevent Med, BR-97105900 Santa Maria, RS, Brazil
来源：
QUIMICA NOVA | 2013年 / 36卷 / 05期
关键词：
xylitol; fermentation; rice husks; ENZYMATIC-HYDROLYSIS; ACTIVATED-CHARCOAL; DETOXIFICATION; PRETREATMENT;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An investigation was conducted into the production of xylose by acid hydrolysis of rice husks and its subsequent bioconversion to xylitol. The parameters were optimised using the response surface methodology. The fermentation stage took place with the aid of the yeast species Candida guilliermondii and Candida tropicalis. An evaluation of the influence of several biomass pre-treatments was also performed. The effects of the acid concentration and hydrolysate pH on xylitol global yield were also assessed, and the highest yield of xylitol was 64.0% (w/w). The main products, xylose and xylitol, were identified and quantified by means of liquid chromatography.
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收藏
页码：634 / U162
页数：7
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