摘要
研究了槲树叶中黄酮类化合物的提取及其稳定性。结果显示:槲树叶中黄酮类化合物含量平均为2.4057%。温度在30～80℃时黄酮类化合物含量基本不变;加入偏重亚硫酸钠、亚硫酸氢钠、EDTA和吐温-80等稳定剂使槲树叶中黄酮类化合物含量保持稳定;pH值为4～7的条件下,样液中黄酮类化合物都能稳定存在;碳水化合物及金属离子对黄酮类化合物有较大影响。
The research was carried on flavonoids extraction and stability of quercus dentata thunb. The results showed that： the content of flavonoids in the quercus dentata thunb is at an average level of 2. 4057%. Flavonoids content is essentially the same under the temperature at 30℃ to 80℃. Sodium pyrosulfite, sodium bisulfite, EDTA and tween-80 can help flavonoids in the quercus dentata thunb stable. The pH value of 4 to 7 also can favorite the flavonoids stable; Carbohydrates and metal ions have a greater impact on flavonoids content.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2013年第4期234-237,共4页
Food and Fermentation Industries
基金
河南科技学院大学生科技创新项目
关键词
槲树叶
黄酮类
提取
稳定性
quercus dentata thunb, flavonoids, extraction, stability
