| 番石榴叶中多酚物质含量测定条件的优化 |
| |
| 引用本文： | 楠极,李远志,何洛强,徐莉珍.番石榴叶中多酚物质含量测定条件的优化[J].农产品加工．学刊,2009(3). |
| |
| 作者姓名： | 楠极 李远志 何洛强 徐莉珍 |
| |
| 作者单位： | 1. 华南农业大学,广东,广州,5100642
2. 广东铭康香精香料有限公司,广东,广州,5100665 |
| |
| 摘 要： | 研究了以没食子酸为标品测定番石榴叶多酚含量的适宜条件。结果表明,当福林试剂稀释10倍,使用质量分数为40%的Na2CO3,反应时间为7min,反应温度为50℃时,多酚含量在0～500mg内与吸光值呈良好的线性关系。测定方法的RSD为1.17%,平均回收率为98.4%,有较好的精密度和准确度。
|
| 关 键 词： | 番石榴叶 多酚 福林法 |
Optimization on Determination Conditions of Content of Phenol in Guava Leaf |
| |
| Nan Ji,Li Yuanzhi,Luoqiang,Xu Lizhen.Optimization on Determination Conditions of Content of Phenol in Guava Leaf[J].Nongchanpin Jlagong.Xuekan,2009(3). |
| |
| Authors: | Nan Ji Li Yuanzhi Luoqiang Xu Lizhen |
| |
| Institution: | 1. South China Agricultural University;Guangzhou;Guangdong 510642;China;2. Guangdong Min Kang Fragrance and Flavor Ltd;Guangzhou 510665;China |
| |
| Abstract: | Using gallic acid as the standard,the optimized conditions were determined for the content of guava leaf phenol. The results showed that when the dilution times were 10- fold,the content of Na2CO3 was 40%,reaction temperature was 50 ℃,and reaction time was 7 min,a good linearity between content of phenol and absorbance was obtained in the range of 0～500 mg. The RSD of determination was 1.17% , average recovery rate of spiked phenol was 98.4% , which had good precision and accuracy. |
| |
| Keywords: | guava leaf phenol Folin method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
