| 食用油中L-抗坏血酸棕榈酸酯含量测定方法研究 |
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| 引用本文： | 黄少强,刘志同. 食用油中L-抗坏血酸棕榈酸酯含量测定方法研究[J]. 中国粮油学报, 2006, 21(2): 121-123 |
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| 作者姓名： | 黄少强 刘志同 |
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| 作者单位： | 北京市粮食科学研究所,北京,100053 |
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| 摘 要： | 研究了直接滴定法测定食用油中L-抗坏血酸棕榈酸酯的方法.用甲醇对油样中L-抗坏血酸棕榈酸酯进行提取,对提取物在酸性条件下水解,用水解产物对2,6-二氯酚靛酚钠溶液进行滴定.该方法灵敏性高、准确可靠.
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| 关 键 词： | 食用油 L-抗坏血酸棕榈酸酯 2,6-二氯酚靛酚钠 |
| 收稿时间： | 2005-02-28 |
| 修稿时间： | 2005-02-28 |
A Determination Method of Ascorbyl Palmitate in Edible Oil |
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| Huang Shaoqiang,Liu Zhitong. A Determination Method of Ascorbyl Palmitate in Edible Oil[J]. Journal of the Chinese Cereals and Oils Association, 2006, 21(2): 121-123 |
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| Authors: | Huang Shaoqiang Liu Zhitong |
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| Affiliation: | Beijing Grain Science Research Institute, Beijing 100053 |
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| Abstract: | A direct titration method for determination of L - ascorbyl palmitate in edible oils has been devcloped. Samples are extracted with methanol. L- ascorbyl palmitate in the methanol extract is hydrolyzed under acid condition, and 2,6 -dichlorophenol indophenol sodium solution is titrated with the hydrolysate. This titration method is very sensitive and accurate. |
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| Keywords: | edible oil L- ascorbyl palmitate 2 6 -dichlorophenol indophenol sodium |
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