Results 161 to 170 of about 7,126 (200)
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Inhibitory mechanism of xanthine oxidase activity by caffeoylquinic acids in vitro
International Journal of Biological Macromolecules, 2021In this study, the inhibitory activities of eight caffeoylquinic acids (CQAs) against xanthine oxidase (XOD) in vitro were investigated, and the interaction mechanisms between each compound and XOD were studied. HPLC and fluorescence spectra showed that the inhibitory activities of dicaffeoylquinic acids (diCQAs) were higher than that of ...
Yin Wan, Yanru Chen, Guiming Fu
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Natural products as potential anticonvulsants: Caffeoylquinic acids
Archives of Pharmacal Research, 2012Current anticonvulsant therapies are generally directed at symptomatic treatment by suppressing excitability within the brain. Consequently, they have adverse effects such as cognitive impairment, dependence, and abuse. The need for more effective and less toxic anticonvulsants has generated renewed interest in natural products for the treatment of ...
Hyo Geun, Kim, Myung Sook, Oh
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Validation of a HPLC-DAD–ESI/MSn method for caffeoylquinic acids separation, quantification and identification in medicinal Helichrysum species from Macaronesia [PDF]
Food Research International, 2012 The caffeoylquinic acids (CQA) found in Helichrysum species from Madeira Archipelago were identified and quantified. The HPLC-DAD–ESI/MSn method applied was developed and validated showing a good repeatability with recovery values ≥96%. The use of a RP-
Paula C Castilho
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Journal of Chinese Integrative Medicine, 2012
To investigate the mechanism of binding of human serum albumin (HSA) with potential sensitinogen, including chlorogenic acid and two isochlorogenic acids (3,4-di-O-caffeoylquinic acid and 3,5-di-O-caffeoylquinic acid).By using the docking algorithm of computer-aided molecular design and the Molegro Virtual Docker, the crystal structures of HSA with ...
Jing, Zhou +4 more
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To investigate the mechanism of binding of human serum albumin (HSA) with potential sensitinogen, including chlorogenic acid and two isochlorogenic acids (3,4-di-O-caffeoylquinic acid and 3,5-di-O-caffeoylquinic acid).By using the docking algorithm of computer-aided molecular design and the Molegro Virtual Docker, the crystal structures of HSA with ...
Jing, Zhou +4 more
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Caffeoylquinic Acids: Separation Method, Antiradical Properties and Cytotoxicity
Chemistry & Biodiversity, 2019AbstractTwelve chlorogenic acid derivatives and two flavones were isolated from Moquiniastrum floribundum (Asteraceae, other name: Gochnatia floribunda). Compounds were evaluated in relation to their cytotoxicity and antiradical properties. Cytotoxicity was not observed for compounds, however, chlorogenic acid derivatives showed antiradical activity ...
Cinthia Indy Tamayose +4 more
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The Content of Individual Caffeoylquinic Acids in Edible Vegetables
Journal of Food Composition and Analysis, 1999Abstract 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 +2 more
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Tissue age and caffeoylquinic acid concentration in sunflower
Phytochemistry, 1970Abstract 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 +3 more
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In vivo deodorisation with caffeoylquinic acid derivatives
2006Ku-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, 2011Tumor 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 +3 more
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Caffeoylquinic acids from Pterocaulon virgatum and Pluchea sagittalis
Phytochemistry, 1979Jorge D Coussio
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