Document Type
Journal Article
Department/Unit
Department of Biology
Title
Comparative analysis of caffeoylquinic acids and lignans in roots and seeds among various burdock (Arctium lappa) genotypes with high antioxidant activity
Language
English
Abstract
Caffeoylquinic acids and lignans in the crude extracts of both roots and seeds from different burdock (Arctium lappa L.) genotypes were simultaneously characterized and systematically compared by LC-MS and matrix-assisted laser desorption/ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS), and their antioxidant activities were also investigated. A total of 14 lignans were identified in burdock seeds and 12 caffeoylquinic acids in burdock roots. High levels of caffeoylquinic acids were also detected in burdock seeds, but only trace amounts of lignans were found in burdock roots. Burdock seeds contained higher concentrations of lignans and caffeoylquinic acids than burdock roots. Quantitative analysis of caffeoylquinic acids and lignans in roots and seeds of various burdock genotypes was reported for the first time. Great variations in contents of both individual and total phenolic compounds as well as antioxidant activities were found among different genotypes. Burdock as a root vegetable or medicinal plants possessed considerably stronger antioxidant activity than common vegetables and fruits. © 2012 American Chemical Society.
Keywords
antioxidant activity, burdock, caffeoylquinic acids, LC-MS, lignans, MALDI-QIT-TOF MS, roots, seeds
Publication Date
2012
Source Publication Title
Journal of Agricultural and Food Chemistry
Volume
60
Issue
16
Start Page
4067
End Page
4075
Publisher
American Chemical Society
DOI
10.1021/jf2050697
Link to Publisher's Edition
http://dx.doi.org/10.1021/jf2050697
ISSN (print)
00218561
ISSN (electronic)
15205118
APA Citation
Liu, J., Cai, Y., Wong, R., Lee, C., Tang, S., Sze, S., Tong, Y., & Zhang, Y. (2012). Comparative analysis of caffeoylquinic acids and lignans in roots and seeds among various burdock (Arctium lappa) genotypes with high antioxidant activity. Journal of Agricultural and Food Chemistry, 60 (16), 4067-4075. https://doi.org/10.1021/jf2050697