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| 纤维素酶解提高红薯水溶性膳食纤维含量的研究 | |
| 引用本文： | 李小平,魏朝明,张薇,应琼琼.纤维素酶解提高红薯水溶性膳食纤维含量的研究[J].食品工业科技,2011(11):198-201. |
| 作者姓名： | 李小平 魏朝明 张薇 应琼琼 |
| 作者单位： | 1. 陕西师范大学食品工程与营养科学学院,陕西西安,710062 2. 陕西师范大学生命科学学院,陕西西安,710062 3. 陕西省科技厅,陕西西安,710003 |
| 基金项目： | 陕西省农业攻关项目(2008K01-13); 陕西师范大学中央高校基本科研业务费项目(GK201002033) |
| 摘 要： | 采用纤维素酶解法对经过淀粉酶、蛋白酶处理得到的红薯膳食纤维进行生物改性处理,提高水溶性膳食纤维（SDF）的含量,以提高其活性。探讨了改性过程中酶添加量、溶液pH、酶解温度及时间对改性的影响,采用正交法对制备工艺进行优化,得出最佳工艺条件：纤维素酶添加量为1.00%,溶液的pH为4.8,酶解温度为50℃,时间为1.5h,此条件下SDF的含量为15.33%;酶解后,红薯渣膳食纤维的持水力提高了48.35%。 |
| 关 键 词： | 红薯 纤维素酶 可溶性膳食纤维 持水力 |
Study on preparation of soluble dietary fiber of sweet potato with cellulase |
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| LI Xiao-ping,WEI Zhao-ming,ZHANG Wei,YING Qiong-qiong.Study on preparation of soluble dietary fiber of sweet potato with cellulase[J].Science and Technology of Food Industry,2011(11):198-201. | |
| Authors: | LI Xiao-ping WEI Zhao-ming ZHANG Wei YING Qiong-qiong |
| Affiliation: | LI Xiao-ping1,WEI Zhao-ming2,ZHANG Wei3,YING Qiong-qiong2(1.College of Food Engineering and Nutritional Science,Shaanxi Normal University,Xi'an 710062,China,2.College of Life Science,3.Shaanxi Provincial Department of Science & Technology,Xi'an 710003,China) |
| Abstract: | To obtain the soluble dietary fiber of sweet potato,cellulase was used to modify the residues of sweet potato which was pretreated by amylase and protease before.The effects of cellulase amount,pH value,enzymolysis time and temperature on the yield of soluble dietary fiber were studied respectively.Based on the results,the orthogonal experiment was designed to obtain the optimum process conditions of extracting soluble dietary fiber.The optimum enzymolysis conditions were:cellulase addition amount 1.00%,pH4... |
| Keywords: | sweet potato cellulase soluble dietary fiber water holding capacity |
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