鸢尾不同产地、采收期总黄酮的含量测定

Determination of Total Flavonoids in Rhizomes of Iris tectorum from Different Regions and Different Collecting Times

采用紫外分光光度法测定了不同产地鸢尾 Iris tectorum Maxim.干燥根茎及南京栽培鸢尾不同采收期药材中总黄酮的含量。其结果为四川峨眉产鸢尾药材总黄酮含量为 4 .5 1% ,四川巫山 5 .73% ,重庆万源6 .86 % ,四川都江堰 6 .94 % ,四川成都 6 .6 4 % ,四川洋县 5 .83% ,四川石柱 6 .4 9% ,四川广元 5 .70 % ,四川涪陵 5 .96 % ,安徽亳州 4 .33% ,江苏南京 4 .38%。南京栽培鸢尾不同采收期药材的总黄酮含量为 1月 5 .4 1% ,2月 4 .36 % ,3月 3.0 3% ,4月 4 .2 8% ,5月 6 .5 9% ,6月 4 .6 9% ,7月 7.17% ,8月 6 .0 3% ,9月 5 .85 % ,10月4 .4 3% ,11月 4 .4 9% ,12月 4 .36 %。不同产地的鸢尾药材以四川都江堰所产含量最高。不同采收期的鸢尾药材以 5月 ,7月 ,8月的含量较高 ,其最佳采收期以 7～ 8月或 5月为宜。

UV metric method was used to determine the contents of total flavonoids in the rhizomes of Iris tectorum Maxim. from different regions and in the cultivation samples from Nanjing at different collecting times. It was shown that the contents of total flavonoids in the rhizomes of Iris tectorum Maxim. from Emei,Sichuan was 4.51%; Wushan, Sichuan 5.73%; Wanyuan, Chongqing6.86%; Dujiangyan, Sichuan 6.94%; Chengdu, Sichuan 6.64%; Yangxian, Sichuan 5.83%; Shizhu Sichuan 6.49%, Guangyuan Sichuan 5.70%; Fuling, Sichuan 5.96%; Bozhou, Anhui 4.33%; Nanjing, Jiangsu 4.38%. The contents of total flavonoids in the rhizomes of Iris tectorum Maxim. cultivated in Nanjing at different collecting times were 5.41%(Jan.), 4.36%(Feb.), 3.03%(Mar.), 4.28%(Apr.), 6.59%(May), 4.69 %(June), 7.17%(July), 6.03%(Aug.), 5.85%(Sep.), 4.43%(Oct.),4.49%(Nov.),4.36%(Dec.) respectively. The most appropriated collecting time should be in July and Aug. or May .