| 超声波辅助碱性H_2O_2法提取酒糟半纤维素组分B |
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| 引用本文： | 任海伟,张飞,张轶,陈晓前,石进才,唐云.超声波辅助碱性H_2O_2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. |
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| 作者姓名： | 任海伟 张飞 张轶 陈晓前 石进才 唐云 |
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| 作者单位： | 1. 兰州理工大学生命科学与工程学院,甘肃兰州,730050
2. 甘肃金徽酒业集团有限公司,甘肃陇南,742308 |
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| 基金项目： | 甘肃省青年科技基金计划项目（1107RJYA065）;兰州理工大学学科发展协调基金资助项目. |
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| 摘 要： | 采用超声波辅助碱性H2O2法从酒糟中分离半纤维素B(DGHB),研究碱性提取剂中H2O2体积分数、超声波功率和超声波时间等因素对DGHB得率的影响,并采用L9(33)正交试验对提取条件进行优化。结果表明,超声波辅助碱性H2O2法提取DGHB的最佳条件为:提取剂中的H2O2体积分数2.0%,超声波功率400 W,超声波辐射时间15 min。在该最佳条件下,DGHB得率为28.57%。傅里叶变换红外光谱分析表明,所提取的DGHB具有半纤维素多糖的特征吸收峰。该研究结果可为酒糟半纤维素分离的工业化应用提供参考。
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| 关 键 词： | 酒糟 半纤维素B 超声波―碱性H2O2法 傅立叶变换红外光谱 |
Ultrasonic-assisted Extraction of Hemicelluloses B from Distiller＇s Grains by Alkaline Hydrogen Peroxide |
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| REN Hai-wei,CHEN Xiao-qian,ZHANG Fei,ZHANG Yi,SHI Jin-cai,TANG Yun.Ultrasonic-assisted Extraction of Hemicelluloses B from Distiller＇s Grains by Alkaline Hydrogen Peroxide[J].Journal of Cellulose Science and Technology,2012,20(3):6-12. |
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| Authors: | REN Hai-wei CHEN Xiao-qian ZHANG Fei ZHANG Yi SHI Jin-cai TANG Yun |
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| Affiliation: | 2 ( 1. College of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2. Gansu Jinhui Liquor Industry Group Corporation Limited, Longnan 742308, China) |
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| 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. |
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| Keywords: | distiller＇s grains hemicelluloses B ultrasonic-alkaline hydrogen peroxide Fouriertransform infrared spectroscopy |
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