食品与机械2011，Vol.27Issue(6)：114-118,5.DOI:10.3969/j.issn.1003-5788.2011.06.029
响应面法优化稻壳中木聚糖的提取工艺
Optimization of extraction process for xylan from rice husk by response surface methodology
摘要
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 model, response surface analysis was carried out to find out the optimum levels of these four factors. The results indicated that the optimum extraction conditions were: temperature 69. 8 ℃ , NaOH concetration 10. 7% , solid-to-liquid ratio 1 ' 13, and extraction time 5. 1 h. Under such conditions, the experimental yield of xylan was 76. 57%.关键词
稻壳/木聚糖/响应面法Key words
rice husk/ xylani response surface analysis引用本文复制引用
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):114-118,5.基金项目
长沙市重大科技专项(编号:K0902007-21) （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) （编号:11JJ8001）
