Results 181 to 190 of about 5,958,372 (224)

CAFFEOYLQUINIC ACIDS BIOSYNTHESIS AND ACCUMULATION IN CYNARA CARDUNCULUS: STATE OF THE ART

Acta Horticulturae, 2013
Plant secondary metabolites are highly evolved compounds performing different functions, and have been widely exploited from food to medicine. A constant supply of phenols, a class of secondary metabolites, provides preventive and defensive mechanisms to reduce the risk of chronic diseases in human beings; among them mono- and di-caffeoylquinic acids ...
Moglia, Andrea, Comino, C., Menin, Barbara, Portis, E., Acquadro, A., Beekwilder, J., Hehn, Alain, Bourgaud, Frederic, Lanteri, S.   +8 more
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The Content of Individual Caffeoylquinic Acids in Edible Vegetables

Journal of Food Composition and Analysis, 1999
Abstract The presence of 3-, 4-caffeoylquinic acid (CQA) isomers and 3,4-, 3,5-, 4,5-dicaffeoylquinic acid (diCQA) isomers was not detected in the vegetables studied. The content of 5-CQA was then evaluated in 14 edible vegetables. The highest mean value was found in the sweet potato (22.20 mg%).
C.A.B. De Maria, L.C. Trugo, L.S. De Mariz e Miranda   +2 more
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Tissue age and caffeoylquinic acid concentration in sunflower

Phytochemistry, 1970
Abstract Through the use of one-dimensional paper chromatographic separation, followed by spectro-photometric analysis, chlorogenic acid, neochlorogenic acid and 4- O -caffeoylquinic acid concentrations have been determined in sections of field-grown Helianthus annuus L.
D.E. Koeppe, L.M. Rohrbaugh, E.L. Rice, S.H. Wender   +3 more
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Determination of caffeoylquinic acid derivatives in Azolla imbricata by chitosan‐based matrix solid‐phase dispersion coupled with HPLC–PDA

Journal of Pharmaceutical and Biomedical Analysis, 2019
&NA; Five main components of Azolla imbricata were isolated and identified as caffeoylquinic acid derivatives, four of which were isolated from this species for the first time.
Weilin Wu, Wenqi Qian, Haitian Hao, Yun Kang, Yaqin Wang, Yuanrong Deng, Chengjie Ni, J. Huang, W. Weng   +8 more
semanticscholar   +1 more source

In vivo deodorisation with caffeoylquinic acid derivatives

2006
Ku-ding-cha contained a large amount of the caffeoyl quinic acid (CQA) derivatives, di-CQA, 16.7% in dry weight as well as mono-CQA, 9.2%. A mixture of 3,5-DiCQA and 5-CQA with an apple acetone powder (AP), containing polyphenol oxidase, showed high capturing activities towards methanethiol (MeSH), propanethiol (PrSH), and 2-propenethiol (AllSH).
Osamu Negishi, Yukiko Negishi
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Antioxidative Caffeoylquinic Acids and Flavonoids from Hemerocallis fulva Flowers

Journal of Agricultural and Food Chemistry, 2011
Tumor necrosis factor-α (TNF-α)-induced reactive oxygen species (ROS) production in HepG2 was used to screen hepatocyte protective compounds from the flowers of Hemerocallis fulva. Three new polyphenols, n-butyl 4-trans-O-caffeoylquinate (1), kaempferol 3-O-{α-L-rhamnopyranosyl(1→6)[α-L-rhamnopyranosyl(1→2)]}-β-D-galactopyranoside (2), and chrysoeriol ...
Yun-Lian, Lin, Chung-Kuang, Lu, Yeh-Jeng, Huang, Hong-Jhang, Chen   +3 more
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An Efficient Strategy Based on Liquid-Liquid Extraction With Acid Condition and HSCCC for Rapid Enrichment and Preparative Separation of Three Caffeoylquinic Acid Isomers From Mulberry Leaves.

Journal of Chromatographic Science, 2019
Morus alba L. is a medicinal plant that contains a high amount of caffeoylquinic acids such as 3-caffeoylquinic acid (3-CQA), 5-caffeoylquinic acid (5-CQA) and 4-caffeoylquinic acid (4-CQA).
Li-tao Wang, M. Gao, Qing Yang, Qi Cui, Yue Jian, Xiaohong Fan, Li‐ping Yao, Yujie Fu   +7 more
semanticscholar   +1 more source

[Advances in caffeoylquinic acid research].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2007
This paper reviewed updated research progresses of caffeoylquinic acids both in phytochemical and pharmacological aspects. The resources, distribution as well as the chemical structures of monocaffeoylquinic acids, dicaffeoylquinic acids, tricaffeoylquinic acids and multicaffeoylquinic acids are conclusively analyzed.
Yu, Zhao, Jun, Zhao, Xiang-ping, Li, Chang-xin, Zhou, Han-dong, Sun, Xiao-jiang, Hao, Pei-gen, Xiao   +6 more
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[Caffeoylquinic acid derivatives from the seeds of Vernonia anthelmintica].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2012
Mature seeds of Vernonia anthelmintica were separated and purified by using such methods as macroporous absorption resin, Sephadex LH-20 and HPLC preparative chromatography. Six compounds were obtained and their structures were identified by such spectrum techniques as 1H, 13C-NMR and MS.
Yongxia, Wang, En, Wang, Jing, Shang, Hao, Wang   +3 more
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A comparative genotoxicity study of chlorogenic acid (3-O-caffeoylquinic acid)

Mutation Research/Genetic Toxicology, 1981
Chlorogenic acid, a compound which occurs naturally in many food items, was assayed for genotoxic activity in 3 different test systems: reverse mutations in the preincubation test with Salmonella typhimurium, gene conversion with Saccharomyces cerevisiae strain D7, and chromosome aberrations in Chinese hamster ovary (CHO) cells.
Hans F. Stich, Miriam P. Rosin, Chiu H. Wu, William D. Powrie   +3 more
openaire   +1 more source