| 海南毛薯干粉中总还原糖含量的测定 |
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| 引用本文： | 何娇,黄广民.海南毛薯干粉中总还原糖含量的测定[J].北京工商大学学报(自然科学版),2012,30(5):56-61. |
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| 作者姓名： | 何娇 黄广民 |
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| 作者单位： | 海南大学食品学院,海南海口,570228 |
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| 基金项目： | 海口市重点科技计划项目 |
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| 摘 要： | 以葡萄糖为标准溶液,以3,5-二硝基水杨酸为显色剂,用分光光度法测定海南毛薯干粉中总还原糖含量.结果表明:在波长480 nm处有最大吸收峰,测定回收率最大为101.9%,最小为99.7%,相对误差为±1.9%.实测得毛薯干粉中总还原糖含量为71.08%,毛薯中淀粉含量为63.97%.
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| 关 键 词： | 海南毛薯 还原糖 分光光度法 |
Determination of Total Reducing Saccharide in Hainan Dioscorea Esculenta ( Lour. ) brukill |
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| HE Jiao and HUANG Guang-min.Determination of Total Reducing Saccharide in Hainan Dioscorea Esculenta ( Lour. ) brukill[J].Journal of Beijing Technology and Business University:Natural Science Edition,2012,30(5):56-61. |
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| Authors: | HE Jiao and HUANG Guang-min |
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| Institution: | (College of Food Science,Hainan University,Haikou 570228,China) |
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| Abstract: | Using glucose as standard and DNS as color developing reagent,the content of total reducing saccharide in Hainan Dioscorea esculenta(Lour.) brukill was determined by spectrophotometry.The results showed that the maximum absorption wavelength of the sample was 480nm.The maximum recovery rate was determined as 101.9%,and the minimum was 99.7%.The relative error was ±1.9%.The content of total reducing saccharide and starch in Hainan Dioscorea esculenta(Lour.) brukill was 71.08% and 63.97%,respectively. |
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| Keywords: | Hainan Dioscorea esculenta (Lour ) brukill reducing saccharide spectrophotometry |
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