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优化水稻培养条件测定其果胶酶活力及灰度变化
引用本文:王旭达,丰明,李景鹏.优化水稻培养条件测定其果胶酶活力及灰度变化[J].黑龙江农业科学,2010(3):5-8.
作者姓名:王旭达  丰明  李景鹏
作者单位:辽宁省农业科学院,大连生物技术研究所,辽宁,大连,116024
摘    要:采用浸泡发芽培养方法改变水稻分子内部构象,测定其变性淀粉果胶酶活力的变化,选择最佳浸泡发芽条件并测定变性后淀粉灰度。结果表明:最佳培养条件为浸泡温度25℃,浸泡方式为浸泡4 h断水10 h,加碱量为0.03%Ca(OH)2,培养时间为2.5 d,在25℃条件下发芽6 d,变性淀粉果胶酶活性最高,灰度较好。从而成功实现对发芽水稻变性淀粉果胶酶活性及其灰度分布的测定。

关 键 词:发芽水稻  变性淀粉  果胶酶活力  灰度

Optimize the Condition of Rice Cultivation and Determinate the Change of the Pectinase Activity and the Gray-scale
WANG Xu-da,FENG Ming,LI Jing-peng.Optimize the Condition of Rice Cultivation and Determinate the Change of the Pectinase Activity and the Gray-scale[J].Heilongjiang Agricultural Science,2010(3):5-8.
Authors:WANG Xu-da  FENG Ming  LI Jing-peng
Institution:(Dalian Biotechnology Institute of Liaoning Academy of Agricultural Sciences,Dalian, Liaoning 116024)
Abstract:By soaking the rice for the cultivation the molecular conformation changed,and determinated the change of the pectinase activity,then determinated the best immersion and germination conditions and the gray-scale.The results showed that the best conditions for cultivate was that immersion temperature is 25℃,immersion mode is 4 hours immersion and 10 hours un-immersion,immersion alkali content is 0.03% Ca(OH)2, immersion time is 2.5 days, germination temperature is 25℃,germination time is 6 days, the pectinase activity and the gray-scale of the modified starch were best at this time.The pectinase activity and the gray-scale of rice modified starch were determinated successfully.
Keywords:germination rice  modified starch  activity of pectinase  gray-scale
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