摘要
本文旨在比较地黄块根不同组织及不同极性部位抗氧化活性的差异,初步分析其抗氧化活性谱效关系。利用DPPH法对85-5和北京1号两个地黄品种块根的菊花心(木质部)、非菊花心(韧皮部)及整体块根不同极性部位(氯仿、正丁醇和乙酸乙酯)的体外抗氧化活性进行评价,并利用Pearson相关系数法对抗氧化活性较强部位的HPLC指纹图谱与其抗氧化活性进行谱效关系分析。结果表明,地黄块根菊花心、非菊花心和整体块根的不同极性部位均有较强的抗氧化活性,其中地黄菊花心的整体抗氧化能力较弱;三个组织中抗氧化活性最强的均为乙酸乙酯部位,单因素方差分析结果显示乙酸乙酯部位与氯仿、正丁醇部位抗氧化活性的IC 50值具有显著性差异;样品乙酸乙酯部位的HPLC指纹图谱共标定了14个共有峰,谱效关系分析表明,毛蕊花糖苷具有一定的抗氧化活性,色谱峰X 1、X 2、X 10和乙酸乙酯部位的抗氧化性具有显著相关性。该研究为地黄块根抗氧化活性药效物质成分的筛选及阐明地黄菊花心与地黄质量的相关性提供理论依据。
In this study,the antioxidant activity in different tissues and different polar parts of R.glutinosa was compared and preliminary analysis of its antioxidant activity spectrum relationship.We evaluted the antioxidant activity in different polar position(chloroform,n-butanol and ethyl acetate)of radial striation(xylem),un-radial striation(phloem)and whole roots of two R.glutinosa germplasms(85-5,Beijing-1)by the method of DPPH.And using Pearson correlation coefficient method to analyze the spectral effect relationship between HPLC fingerprint and antioxidant activity of strong antioxidant activity fraction.The results showed that the radial striation,un-radial striation and whole root tuber of Rehmannia glutinosa root had strong antioxidant activity,in which the overall antioxidant capacity of the radial striation was weak,and the most active was the ethyl acetate part.The results of one-way ANOVA showed significant differences in IC 50 values between ethyl acetate fraction and the antioxidant activities of chloroform and n-butanol fractions.HPLC fingerprints of the ethyl acetate fraction of the sample were calibrated with 14 common peaks.The results of spectral efficiency analysis showed that the acteoside had certain antioxidant activity,and the peaks X 1,X 2,X 10 and ethyl acetate samples had significant correlation with oxidation resistance.This study provides a theoretical basis for the screening of anti-oxidative activity pharmacological components of Rehmannia glutinosa and the clarification of the relationship between the radial striation of Rehmannia glutinosa and the quality of Rehmannia glutinosa.
作者
耿晓桐
王丰青
谢彩侠
张苗
陈志红
龚海燕
雷敬卫
张重义
GENG Xiao-tong;WANG Feng-qing;XIE Cai-xia;ZHANG Miao;CHEN Zhi-hong;GONG Hai-yan;LEI Jing-wei;ZHANG Zhong-yi(School of Medicine,Henan University of Traditional Chinese Medicine,Zhengzhou 450046,China;College of Crop Science,Fujian Agriculture and Forestry University,Fuzhou 350000,China;College of Agronomy,Henan Agricultural University,Zhengzhou 450000,China)
出处
《天然产物研究与开发》
CAS
CSCD
北大核心
2019年第11期1864-1872,共9页
Natural Product Research and Development
基金
国家重点研发计划(2017YFC1700705)
河南省科技攻关计划(182102311156)
关键词
地黄块根
不同极性部位
体外抗氧化活性
HPLC
谱效关系
Rehmannia root
different polar parts
In vitro antioxidant activity
hplc
spectral effect relationship
