不同品系玉竹多糖及黄酮抗氧化活性研究  

Study on the Antioxidant Activity of Polysaccharides and Flavonoids in Different Strains of Polygonatum odoratum

作　　者：李敏[1] 奚广生[1] 罗益远 邹莉莉[1] 

机构地区：[1]吉林农业科技学院中药学院,吉林吉林132101 [2]南京中医药大学药学院,江苏南京210023

出　　处：《北方园艺》2015年第5期135-138,共4页Northern Horticulture

基　　金：吉林农业科技学院校重点学科培育资助项目(吉农院合字2013第S012号)

摘　　要：以不同品系、不同生长年限玉竹为试材,以维生素C、芦丁作为参照,利用DPPH比色法和总还原能力测定法,以IC50作为判定抗氧化活性强弱的综合指标,对不同品系玉竹多糖及总黄酮体外抗氧化能力进行比较研究。结果表明:不同品系玉竹中二年生大玉竹多糖的IC50为0.07mg/mL(维生素C为0.05mg/mL)、黄酮IC50为0.048mg/mL(芦丁为0.0062mg/mL)及最大还原能力数值为1.698,与标准对照品相差最小,效果最好。研究结果表明二年生大玉竹抗氧化性最好。With different strain and different age of Polygonatum ocloraturn as test materials,in vitro antioxidant activities of polysaccharides and flavones from different strains of Polygonatum odoratum were investigated by employing both DPPH scavenging assay recovery ability with vitamin C as control. Using ICS0 as a comprehensive index to compare of polysaccharides and flavonoids antioxidant capacity in vitro for different strains of Polygonatum odoraturn. The results showed that IC50 value of biennia Polygonaturn odoratum polysaccharide from different strains was 0. 07 mg/mL （vitamin C was 0. 05 mg/mL） ,IC50 value of flavonoids was 0. 048 mg/mL （rutin was 0. 0062 mg/mL） and the maximum reduction capacity was 1.698, and biennial Polygonaturn odoratum had the minimum difference compared with control materials. The antioxidant activities of biennial Polygonatum odoratum was the best.

关 键 词：玉竹 多糖 黄酮 抗氧化活性 不同品系 

分 类 号：S567.239[农业科学—中草药栽培]