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| 稻谷脂肪酸值测定条件优化与比较的研究 | |
| 引用本文： | 范维燕,林家永,邢邯.稻谷脂肪酸值测定条件优化与比较的研究[J].粮食储藏,2008,37(6). |
| 作者姓名： | 范维燕 林家永 邢邯 |
| 作者单位： | 1. 国家粮食局科学研究院,北京,100037;南京农业大学,南京,210095 2. 国家粮食局科学研究院,北京,100037 3. 南京农业大学,南京,210095 |
| 摘 要： | 研究了提取时问、振荡速率、过滤分离与离心分离等对稻谷脂肪酸测定结果的影响.并对人工滴定法和仪器法测定脂肪酸值进行了比较.结果表明:提取时间对脂肪酸提取率的影响较小,提取时间10 min即可较完全提取样品脂肪酸;随着振荡速率增加,脂肪酸提取率提高,当振荡速率达到125 r/min以上时,样品中的脂肪酸基本提取完全;手工过滤和离心分离制备提取液,测定结果无显著性差异;仪器法测定结果的精密度高于手工滴定法. |
| 关 键 词： | 稻谷 脂肪酸值 测定 脂肪酸测定仪 |
RESEARCHES ON THE OPTIMIZATION OF DETERMINATION CONDITIONS OF FATTY ACID VALUE IN PADDY |
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| Fan Weiyan,Lin Jiayong,Xing Han.RESEARCHES ON THE OPTIMIZATION OF DETERMINATION CONDITIONS OF FATTY ACID VALUE IN PADDY[J].Grain Storage,2008,37(6). | |
| Authors: | Fan Weiyan Lin Jiayong Xing Han |
| Institution: | Fan Weiyan1,2Lin Jiayong1Xing Han2(1Science Academy of State Administration of Grain,Beijing100037)(2Nanjing Agricultural University,Nanjing210095) |
| Abstract: | The influence of extraction time,shake frequency,centrifugal separation and filter separation on the measuring results were studied in this paper. The results of instrument determination method and the traditional titration method were also compared. The results showed that extraction time had no significant influence on extraction rates of fatty acid. With the increase of shake frequency,the extraction rates increased significantly,Almost all fatty acid in paddy could be extracted under the conditions of e... |
| Keywords: | paddy fatty acid value determination fatty acid instrument |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |