| 壳聚糖的降解及对浆水防腐效果研究 |
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| 引用本文： | 冯小强,杨声,苏中兴,赵海红,雷新有,王廷璞. 壳聚糖的降解及对浆水防腐效果研究[J]. 食品工业, 2006, 0(3) |
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| 作者姓名： | 冯小强 杨声 苏中兴 赵海红 雷新有 王廷璞 |
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| 作者单位： | 兰州大学化学化工学院，天水师范学院生命科学与化学学院，兰州大学化学化工学院，天水师范学院生命科学与化学学院，天水师范学院生命科学与化学学院，天水师范学院生命科学与化学学院 兰州 730000，天水 741001，兰州 730000，天水 741001，天水 741001，天水 741001 |
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| 基金项目： | 天水师范学院科学研究基金(X3-01) |
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| 摘 要： | 运用H_2O_2-HAc均相体系降解制备了不同分子量的壳聚糖,研究了它们对浆水的防腐作用。研究结果表明：壳聚糖对酵母菌的抑制作用与其分子量有关,分子量越高其对酵母菌的抑制效果越好；分子量80万以上的壳聚糖防腐作用最好,在常温下,保质期可达2个月之久,完全可应用于食品保鲜,而分子量8000以下的壳聚糖不仅对酵母菌起不到抑制作用,反而具有促进其生长的作用。在此基础上对壳聚糖的抑菌机理也做了初步探讨。
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| 关 键 词： | 壳聚糖 降解 浆水 防腐 |
Studies on Degradation of Chitosan and it's Anticeptic Effect in Acidish Drink |
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| Feng Xiao-qiang Su Zhong-xin Chemistry and Chemical Engineering College,Lanzhou University. Studies on Degradation of Chitosan and it's Anticeptic Effect in Acidish Drink[J]. The Food Industry, 2006, 0(3) |
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| Authors: | Feng Xiao-qiang Su Zhong-xin Chemistry Chemical Engineering College Lanzhou University |
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| Abstract: | In this paper,aseries of chitosans with different molecularweight were prepared by degradation in H_2O_2-HAc system.Then the abilities of chitosans with different molecular weight to inhibit saccharomycete in acidish drink were studied.The results showed that the abilities of chitosans to inhibit saccharomycete are connected with their molecular weights,which is in proportion to their molecular weights.Chitosans with molecular weight above 800,000 were of best inhibition abilities to saccharomycete.The quality guarantee period can last to two monthes, It can be used to food storage,chitosans with molecular weights under 8,000 is no inhibit effect but accelerate the growth of saccharomycete.Based on these facts the inhibition mechanism of chitosan to saccharomycete is also discussed. |
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| Keywords: | chitosans degradation acidish drink antiseptic |
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