| 玉米芯中提取木聚糖的研究 |
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| 引用本文： | 舒国伟,张璐,刘谕,张志良.玉米芯中提取木聚糖的研究[J].甘肃农业大学学报,2008,43(2):131-135. |
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| 作者姓名： | 舒国伟 张璐 刘谕 张志良 |
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| 作者单位： | 陕西科技大学生命科学与工程学院,陕西,西安,710021 |
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| 摘 要： | 通过单因素及正交试验对从玉米芯中提取木聚糖的工艺条件进行了优化,得出最佳工艺如下:NaOH溶液的浓度为15%,固液比1∶20,90℃浸提90 min,离心,将上清夜pH值调到5.0,静置过夜,离心得到木聚糖A,再将上清液用3倍体积95%的工业酒精沉淀60 min得木聚糖B,在上述条件下木聚糖提取率为28.5%.
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| 关 键 词： | 玉米芯 木聚糖 提取工艺 |
| 文章编号： | 1003-4315(2008)02-0131-05 |
| 修稿时间： | 2007年4月16日 |
Study on extraction of xylan from corn cob |
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| SHU Guo-wei,ZHANG Lu,LIU Yu,ZHANG Zhi-liang.Study on extraction of xylan from corn cob[J].Journal of Gansu Agricultural University,2008,43(2):131-135. |
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| Authors: | SHU Guo-wei ZHANG Lu LIU Yu ZHANG Zhi-liang |
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| Abstract: | The extraction of xylan from corn cob was studied by single factor search and orthogonal experiments designation.The optimal technology of extraction was showed as a concentration of NaOH 15 %,solid-liquid ratio 1∶20,90 ℃ for 90 minutes,the remaining insoluble material was separated by centrifugation,the extract was deposited for overnight after acidifying with acetic acid to pH 5.0,then gained precipitate(xylan A) by centrifugation,the centrifugal liquid was pour into three volumes of ethanol.The precipitate formed was xylan B,and the yield of xylan could be reached 28.5 %. |
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| Keywords: | corn cob extraction technology xylan |
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