纤维素科学与技术2012，Vol.20Issue(3)：6-12,7.
超声波辅助碱性H2O2法提取酒糟半纤维素组分B
Ultrasonic-assisted Extraction of Hemicelluloses B from Distiller's Grains by Alkaline Hydrogen Peroxide
摘要
Abstract
The ultrasound-assisted extraction method of hemicelluloses B from distillers grains (DGHB) by alkaline hydrogen peroxide was studied to increase the extraction efficiency. The influences of factors such as volume fraction of H2O2, ultrasonic power, and ultrasonic time on yield of DGHB were also investigated respectively. On the basis of single factor experiments, the extraction conditions were optimized with orthogonal experiment. The results showed that the optimal conditions for DGHB extraction were H2O2 volume fraction of 2.0%, ultrasonic power of 400 W and ultrasonic time of 15 min. Under these optimal conditions, the yield of DGHB reached 28.57%. The obtained DGHB was qualitatively analyzed by Fourier transform infrared spectroscopy (FT-IR). FT-IR showed that DGHB had characteristic absorption peaks of polysaccharide. The results could provide a reference for industrialization of hemicelluloses production.关键词
酒糟/半纤维素B/超声波一碱性H2O2法/傅立叶变换红外光谱Key words
distiller's grains/hemicelluloses B/ultrasonic-alkaline hydrogen peroxide/Fouriertransform infrared spectroscopy分类
轻工纺织引用本文复制引用
任海伟,张飞,张轶,陈晓前,石进才,唐云..超声波辅助碱性H2O2法提取酒糟半纤维素组分B[J].纤维素科学与技术,2012,20(3):6-12,7.基金项目
甘肃省青年科技基金计划项目 （）
兰州理工大学学科发展协调基金资助项目. （）
