| 周录泳， 褚夫江， 刘文彬， 卢雪梅， 金小宝， 朱家勇.酶碱结合法制备红薯膳食纤维的工艺研究[J].广东农业科学,2015,42(17):82-89 |
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酶碱结合法制备红薯膳食纤维的工艺研究 |
| Dietary fiber preparation from sweet potato by combinedtechnology of enzymolysis with alkaline hydrolysis |
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| DOI： |
| 中文关键词: 红薯 膳食纤维 酶碱结合法 |
| 英文关键词: sweet potato dietary fiber combined technology of enzymolysis with alkaline hydrolysis |
| 基金项目:广东省战略新心产业核心技术攻关项目
（2012A080800016） |
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| 摘要点击次数: 1310 |
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| 中文摘要: |
| 以红皮黄心红薯为原料， 采用酶碱结合法制备膳食纤维， 通过单因素和正交试验对制备工艺进行
优化， 并对所得膳食纤维产品进行分析。 结果表明， 酶解工艺中各种酶的最适用量分别为： 脂肪酶 0.5%， 混合
酶（中温 α 淀粉酶和糖化酶）0.6%， 木瓜蛋白酶 0.2%； 碱解工艺的最佳条件为： pH 8.5， 温度 60℃， 碱解时
间 1.5 h。 在最优条件下， 红薯膳食纤维得率可达 66.31%， 其中膳食纤维含量从原料中的 24.21% 提升至可溶膳
食纤维产品中的 83.74%， 产品膨胀力为 6.23 mL/g， 持水力为 9.33 g/g， 持油力为 3.96 g/g， 功能特性优良。 |
| 英文摘要: |
| In order to develop an optimal preparation procedure of dietary fiber from sweet potato that was red
picea yellow heart by combined technology of enzymolysis with alkaline hydrolysis， single factor and orthogonal array
design experiments were carried out and the properties of dietary fiber product were studied. The results showed
that the optimum preparation procedure was based on enzymolysis with addition of lipase of 0.5%， mixing enzyme
（α-maylase and glucoamylase）dose of 0.6%， papain of 0.2% alkaline hydrolysis for 1.5 h at 60℃with pH 8.5.
Under such conditions， the yield of dietary fiber could reach 66.31%， the contents of dietary fiber could increase from
24.21% in the raw materials to 83.74% in the soluble product. The swelling capacity， water holding capacity and oil
holding capacity of dietary fiber product was 6.23 mL/g， 9.33 g/g and 3.96 g/g respectively， the functional properties
were good. |
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