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| 凝胶多糖发酵液流变学特性及提取条件的初步研究 | |
| 引用本文： | 赵振刚,陈山,卢家炯,郭丽萍,杭方学. 凝胶多糖发酵液流变学特性及提取条件的初步研究[J]. 食品工业科技, 2005, 26(9): 89-92 |
| 作者姓名： | 赵振刚 陈山 卢家炯 郭丽萍 杭方学 |
| 作者单位： | 1. 广西大学轻工与食品工程学院,广西,南宁,530004 2. 广西大学糖业工程技术研究中心,广西,南宁,530004 3. 广西大学轻工与食品工程学院,广西,南宁,530004;广西大学糖业工程技术研究中心,广西,南宁,530004 |
| 摘 要： | 初步研究了凝胶多糖发酵液的流变学特性并应用正交实验对其提取条件进行了研究,通过极差和方差分析可知,碱液浓度对多糖得率有显著影响(P<0.05),碱液浓度和pH对多糖含量有显著影响(P<0.05),在a=0.05的条件下,各因素对含氮量的影响在统计学意义上不是很显著。通过评价多糖得率、多糖含量及含氮量三个指标,确定了其提取的最佳工艺条件为0.6moL/LNaOH,碱溶时间2h,pH8.0,以及添加乙醇倍数为1.5倍。 |
| 关 键 词： | 凝胶多糖 粘度 多糖得率 含糖量 含氮量 |
| 文章编号： | 1002-0306(2005)09-0089-04 |
| 修稿时间： | 2005-02-16 |
Preliminary study on rheological properties and extraction technology of curdlan |
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| Zhao Zhengang et al. Preliminary study on rheological properties and extraction technology of curdlan[J]. Science and Technology of Food Industry, 2005, 26(9): 89-92 | |
| Authors: | Zhao Zhengang et al |
| Affiliation: | Zhao Zhengang et al |
| Abstract: | Rheological properties of curdlan fermentation liquid and curdlan extract by orthogonal experiments were studied. By extra-deviation and square variance analysis, it's found out that the concentration of aqueous alkali has dominating effects (P <0.05) on extraction yield, the concentration of aqueous alkali and pH has dominating effects (P <0.05) on polysaccharide content, while these factors has no dominating effects on nitrogen content of the product under the condition of a =0.05. Based on extraction yield, polysaccharide concentration and nitrogen content in the product, the optimum extraction condition is to be disperse raw material in 0.6 mol/L NaOH for 2 hours at pH 8.0 and precipitate with 1.5 times of ethanol (95%). |
| Keywords: | curdlan viscosity extracting rate polysaccharide containing nitrogen containing |
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