侧柏叶黄酮类化合物的稳定性  

Stability of Flavonoids Extracted from Platycladus Orientalis Leaves

作　　者：赵莹[1] 张建平[1] 赵永光[1] 周永国[1] 宋爱君[1] 曹晓雯[1] 

机构地区：[1]河北科技师范学院化学系,河北秦皇岛066600

出　　处：《河北科技师范学院学报》2008年第3期30-33,共4页Journal of Hebei Normal University of Science & Technology

基　　金：河北省科技攻关项目(项目编号:07215545)部分内容

摘　　要：为确定从侧柏叶中提取的黄酮类化合物的稳定性，对侧柏叶黄酮类化合物在光、热、pH值、金属离子等因素方面的稳定性进行了测定。结果表明：侧柏叶黄酮类化合物在pH值为5-6的条件下稳定；碳水化合物对化合物无明显影响；紫外灯照射会使侧柏叶黄酮类化合物颜色加深；金属离子K^＋，Na^＋，Mg^2＋基本上不影响侧柏叶黄酮类化合物的稳定性，而Ca^2＋，Al^3＋，Fe^3＋对其有破坏作用；体积分数为0．01的H2O2和Na2SO3对侧柏叶黄酮类化合物稳定性均有负面影响。The stability of flavonoids from Platycladus orientalis leaves was studied in different conditions. The results showed that the stability of flavonoids was better when 5 ≤pH≤6 and carbohydrates have little effect on it. The color became deeper when flavonoids were exposed in the ultraviolet lights. K^＋ , Na^＋ , Mg^2＋ had no effect on the flavonoids, while Ca^2＋ , Al^3＋, Fe^3＋ had remarkable negative effect on it. Volume fraction of 0.01 H2O2 and Na2SO3 also had negative impact on the stability of flavonoids.

关 键 词：侧柏叶 黄酮类化合物 稳定性 

分 类 号：O652.62[理学—分析化学] O629.9[理学—化学]