| 响应面法优化稻壳中木聚糖的提取工艺 |
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| 引用本文： | 韩丹妮,谢定.响应面法优化稻壳中木聚糖的提取工艺[J].食品与机械,2011,27(6). |
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| 作者姓名： | 韩丹妮 谢定 |
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| 作者单位： | 长沙理工大学化学与生物工程学院,湖南长沙,410114 |
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| 基金项目： | 长沙市重大科技专项(编号:K0902007-21); 湖南省自然科学基金委员会与衡阳市政府自然科学联合基金(编号:11JJ8001) |
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| 摘 要： | 为提高稻壳中木聚糖的提取率,稻壳经3％的硫酸预处理后再用碱法进行木聚糖的提取,采用响应面法优化工艺条件,先对提取温度、NaOH浓度、固液比、提取时间4个因素进行单因素试验.根据单因素试验结果设计中心组合试验,以木聚糖提取率为考察指标,采用响应面分析法确定最优工艺参数.结果表明:提取温度69.8℃、NaOH浓度10.7％、固液比1∶13(m∶V)、提取时间5.1h.该条件下,木聚糖提取率可达76.57％.
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| 关 键 词： | 稻壳 木聚糖 响应面法 |
Optimization of extraction process for xylan from rice husk by response surface methodology |
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| HAN Dan-hi
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XIE Ding.Optimization of extraction process for xylan from rice husk by response surface methodology[J].Food and Machinery,2011,27(6). |
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| Authors: | HAN Dan-hi XIE Ding |
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| Affiliation: | HAN Dan-ni XIE Ding(College of Chemical and Biology,Changsha University of Science and Technology,Changsha,Hunan 410114,China) |
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| Abstract: | Response surface methodology was used to optimize the conditions for alkaline extraction of xylan from rice husk,and the rice husk was pretreatmented by 3% sulfuric acid before use.The effects of extraction tempeature,NaOH concentration,solid-to-liquid ratio and extraction time on the yield of xylan were studied in single factor experiments.Subsequently,a regrssion model for the yield of xylan was established using a central composite design involving the above four factors at five levels and based on the m... |
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| Keywords: | rice husk xylan response surface analysis |
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