摘要
目的:提高多花黄精的综合利用。方法:测定多花黄精根、茎、叶、花和嫩芽5个非药用部位的总黄酮、总皂苷和总酚含量,并比较非药用部位提取液的DPPH·、·OH及对亚硝酸盐的清除率。结果:多花黄精5个部位中总黄酮和总酚含量顺序大小一致,依次为叶>嫩芽>花>茎>根,总皂苷以花中含量最高;抗氧化活性方面,叶提取液的DPPH·、·OH和对亚硝酸盐的清除率最高,其次是嫩芽、花。相关性分析发现,多花黄精非药用部位提取液对DPPH·、·OH和亚硝酸盐的清除率与总黄酮、总皂苷和总酚含量均表现出一定的正相关。结论:多花黄精非药用部位提取液具有较好的生物活性。
Objective:This study focuses on improving the comprehensive utilization rate of Polygonatum cyrtonema.Methods:The contents of total flavonoids,total saponins and total phenols from roots,stems,leaves,flowers and buds,of P.cyrtonema were determined.The scavenging rates of DPPH·,·OH and nitrites in extracts of above tissue were measured and compared as well.Results:The contents of total flavonoids and total phenols five different kinds of non-medicinal tissue were in the same order,in which from highest to lowest was,leaves,buds,flowers,stems and roots,and the content of total saponins in flower was the highest In terms of antioxidant activity,the DPPH·,·OH and nitrite scavenging rate of leaf extract were the highest,followed by buds and flowers.Correlation analysis showed that the clearance of DPPH·,·OH and nitrite by the extract from different tissue showed a certain positive correlation with the contents of total flavonoids,total saponins and total phenols.Conclusion:The extract of non-medicinal parts of P.cyrtonema has good biological activity.
作者
王天梅
王华磊
李丹丹
陈松树
潘克琴
WANG Tian-mei;WANG Hua-lei;LI Dan-dan;CHEN Song-shu;PAN Ke-qin(College of Agriculture,Guizhou University,Guiyang,Guizhou 550025,China;Guizhou Key Laboratory of Propagation and Cultivation on Medicinal Plants,Guiyang,Guizhou 550025,China)
出处
《食品与机械》
北大核心
2022年第1期57-60,共4页
Food and Machinery
基金
贵州省科技计划项目(编号:黔科合支撑[2020]4Y102号)
国家自然科学基金资助项目(编号:31760421)。
关键词
多花黄精
非药用部位
活性成分
抗氧化活性
亚硝酸盐
Polygonatum cyrtonema
non-medicinal parts
active components
antioxidant activity
nitrite
