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天然居群青钱柳叶主要生物活性物质及抗氧化活性研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2020年02期
Page:
10-16
Column:
专题报道(执行主编 李维林)
publishdate:
2020-03-31

Article Info:/Info

Title:
Key bioactive substances and their antioxidant activities in Cyclocarya paliurus(Batal.)Iljinskaja leaves collected from natural populations
Article ID:
1000-2006(2020)02-0010-07
Author(s):
LIN Yuan CHEN Pei ZHOU Mingming SHANG XulanFANG Shengzuo*
(Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry,Nanjing Forestry University, Nanjing 210037, China)
Keywords:
Cyclocarya paliurus(Batal.)Iljinskaja flavonoid triterpenoid polyphenol antioxidant activity natural populations
Classification number :
S718
DOI:
10.3969/j.issn.1000-2006.201901045
Document Code:
A
Abstract:
【Objective】 Cyclocarya paliurus(Batal.)Iljinskaja is a multiple-use tree species with applications in timber, ornamental and medicinal industries. However, recently, the most common use of C. paliurus(Batal.)Iljinskaja in the market is the preparation of nutraceutical tea with health benefits using its leaves. The objective of the present study was to select superior provenances or natural populations of C. paliurus(Batal.)Iljinskaja for medicinal purposes based on their content of key bioactive substances and their antioxidant activity. 【Method】 This study measured, using water extraction, the total flavonoid, total triterpenoid, and total polyphenol content and antioxidant activity in C. paliurus(Batal.)Iljinskaja leaves collected from 33 natural populations and analyzed the correlation between content and antioxidant activity. 【Result】The flavonoid, triterpenoid and polyphenol content exhibited significant variation in the extracts of C. paliurus(Batal.)Iljinskaja leaves collected from different natural populations. The total flavonoid content in the leaves was 6.79-20.91 mg/g, whereas the total triterpenoid and total polyphenol content was 15.67-44.63 and 10.53-33.04 mg/g, respectively. Hierarchical cluster analysis indicated that the 33 natural populations were classified into three, four and three distinct groups based on the total flavonoid, total triterpenoid and total polyphenol content in their leaves, respectively. Correlation analysis showed a significant positive correlation between total flavonoid, total triterpenoid and total polyphenol content; these key bioactive substances were also significantly correlated with DPPH(1,1-diphenyl-2-picrylhydrazyl)free radical-scavenging activity, ABTS [2, 2’-azinobis-(3-ethylbenzthiazoline-6-sulfonic acid)] free radical-scavenging activity, and total reducing power. 【Conclusion】Cyclocarya paliurus(Batal.)Iljinskaja natural populations from Anhui Jixi(S2), Guizhou Shijie(S15), Hubei Hefeng(S19)and Hubei Wufeng(S20)are excellent populations for preparing nutraceutical tea with a high content of key bioactive substances and strong antioxidant activity

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Last Update: 2019-03-25