| 南瓜水溶性粗多糖提取工艺的优化 |
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| 引用本文： | 赵大庆,孙兰萍,张斌,许晖.南瓜水溶性粗多糖提取工艺的优化[J].农产品加工．学刊,2007(11):22-26,58. |
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| 作者姓名： | 赵大庆 孙兰萍 张斌 许晖 |
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| 作者单位： | 蚌埠学院,食品与生物工程系,安徽,蚌埠,233030 |
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| 基金项目： | 安徽省高校省级教学研究项目 |
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| 摘 要： | 报导了南瓜水溶性多糖的水提醇沉优化工艺。在单因素试验的基础上,选取南瓜水溶性多糖提取时间、提取温度和水料比3个因素进行Box-Benhnken中心组合设计,利用响应面分析法对其提取工艺参数进行优化研究。利用Design-Expert软件对南瓜水溶性多糖得率的二次多项数学模型解逆矩阵分析表明,在提取温度为72.41℃,提取时间为3.02h,水料比为33.48∶1时,南瓜水溶性多糖得率最高,最大得率预测值为2.463%,与实测值2.447%相符。利用优化工艺参数提取南瓜水溶性多糖时,具有最大的提取效果。
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| 关 键 词： | 南瓜 多糖提取 响应面分析法 |
| 文章编号： | 1671-9646（2007）11-0022-05 |
| 修稿时间： | 2007-08-13 |
Optimization of the Extraction Water-soluble Coarse Polysaccharides of Pumpkin |
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| Zhao Daqing,Sun Lanping,Zhang Bin,Xu Hui.Optimization of the Extraction Water-soluble Coarse Polysaccharides of Pumpkin[J].Nongchanpin Jlagong.Xuekan,2007(11):22-26,58. |
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| Authors: | Zhao Daqing Sun Lanping Zhang Bin Xu Hui |
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| Institution: | Department of Food and Bioengineering, BengBu College, Bengbu, Anhui 233030, China |
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| Abstract: | This paper reported on aqueous extraction-alcohol precipitation optimization technology of water-soluble polysaccharides of pumpkin. The effect of each factor such as the temperature of extraction,the time of extraction and the ratio of water to sample on the extraction of the water-soluble polysaccharides of pumpkin were investigated based on a three-level three-factor box-behnken design,which was based on single-factor experiment. The extraction technique parameters were optimized with response surface methodology. The result showed that the best technological conditions were that the extraction of temperature was 72.41 ℃,the extraction of time was 3.02 h and the ratio of water to sample was 33.48∶1 by solving the regression equation with design-expert software. Under those conditions,the predicted value of the extraction rate of polysaccharides of pumpkin was 2.463%,which was in consistent with the measured value 2.447%. It had maximal the extraction rate of polysaccharides of pumpkin with optimized technological conditions. |
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| Keywords: | pumpkin polysaccharide extraction response surface methodology(RSM) |
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