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食品研究与开发:2016,37(12):-
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加酶处理对薏苡仁淀粉降解及改性的研究
(福建省农业科学院农业生态研究所,福建福州350013)
Study on Degradation and Modification of Adlay Starch by Enzymatic
(Agricultural Ecology Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350013,Fujian,China)
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投稿时间:2015-06-08    
中文摘要: 采用酶法对薏苡仁淀粉的降解和改性进行研究,最终确定的酶解最佳工艺条件为:复合酶(普鲁兰酶:β-淀粉酶)配比1∶2、酶解温度60℃、酶解时间85 min、pH 6.0,此条件下水解液中的DE值为23.28%。酶解后薏米仁淀粉含量为27.63%,淀粉糊化温度为60.1℃、淀粉热焓值为6.27 J/g,与对照组(酶解前)相比分别降低了30.05%、5.07℃和4.62 J/g。
中文关键词: 薏苡淀粉  酶解  改性  研究
Abstract:This paper studied on degradation and modification of Adlay starch by enzymatic,the optimum parameters were:the ratio between Pullulanase andβ-amylase 1∶2,reaction temperature 60℃,enzymolysis time 85 min and enzymolysis pH 6.0.In this condition,the DE of adloy starch liquefaction was 23.28%,and content of Adlay Starch was 27.63%,the initial gelatinization temperature was 60.1℃,and starch enthalpy was 6.27 J/g,compared with the controlgroup(no enzymatic),the contentwas reduced by 30.05%,5.07℃and 4.62 J/g.
文章编号:201612004     中图分类号:    文献标志码:
基金项目:福建省科技厅公益类科研院所基本科研专项(2014R1017-4;2014R1017-1;2014R1017-2)
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