Results 161 to 170 of about 46,549 (189)

The chlorogenic acids of Hemerocallis

Food Chemistry, 2006
The chlorogenic acids in a methanolic extract of freeze-dried Hemerocallis (Chinese day lily) have been qualitatively profiled by LC–MS3. Three caffeoylquinic acids (3-CQA (I), 4-CQA (III) and 5-CQA (II)), three p-coumaroylquinic acids (3-pCoQA (IV), 4-pCoQA (VI) and 5-pCoQA (V)) and two feruloylquinic acids (3-FQA (VII) and 4-FQA (IX)) have been ...
Clifford, MN, Wu, WG, Kuhnert, N
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Thin layer chromatography of chlorogenic acid isomers

Journal of Chromatography A, 1967
Abstract Chlorogenic, neochlorogenic and cryptochlorogenic acids have been separated by the use of thin layer chromatography. Silica Gel G (Merck) plates impregnated with KHSO 4 were used. Forty chromatographic solvent systems used to develop the acids and eleven colour reactions are listed.
Z, Grodzińska-Zachwieja, W, Kahl, A, Warchol   +2 more
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Chlorogenic Acids in Fruit Trees

Nature, 1952
WORK on the chemical composition of the various parts of fruit trees, particularly apple and pear, is proceeding at Long Ashton aud East Malling Research Stations and the Ditton Laboratory. The problems being studied are not quite the same in each laboratory, but discussions of common interests have disclosed certain overlapping findings.
A. E. BRADFIELD, A. E. FLOOD, A. C. HULME, A. H. WILLIAMS   +3 more
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Cognitive and neuroprotective effects of chlorogenic acid

Nutritional Neuroscience, 2016
The aim of this review was to provide an overview of studies conducted to determine the effects of chlorogenic acid (CGA) on cognition and neurological health.A literature search was conducted using PubMed and various search terms including chlorogenic acid, CGA, memory, neuroscience, cognition, nutrition, antioxidant, pharmacokinetics, neuroprotection,
Erin, Heitman, Donald K, Ingram
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Chlorogenic acid-water complexes in chlorogenic acid containing food products

Journal of Food Composition and Analysis, 2022
Piotr Holowinski, Andrzej L. Dawidowicz, Rafal Typek   +2 more
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Chlorogenic Acid as a Natural Scavenger for Hypochlorous Acid

Biochemical and Biophysical Research Communications, 1995
The effect of chlorogenic acid (CGA) on the killing of Escherichia coli by hypochlorous acid (HOCI) was examined. CGA prevented E. coli from bactericidal action of HOCI in a concentration-dependent manner. HOCI reacted rapidly with CGA. By comparison with the one- and two-electron oxidation products produced by peroxidase and phenolase reactions ...
Y, Kono, H, Shibata, Y, Kodama, A, Ueda, Y, Sawa   +4 more
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Effect of chlorogenic acid on hydroxyl radical

Molecular and Cellular Biochemistry, 2003
Chlorogenic acid (CGA) is considered to act as an antioxidant. However, the inhibitory effects of CGA on specific radical species are not well understood. Electron spin resonance (ESR) in combination with spin trapping techniques was utilized to detect free radicals.
Lun-Yi, Zang, Greg, Cosma, Henry, Gardner, Vince, Castranova, Val, Vallyathan   +4 more
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Chlorogenic acids and related depsides

The Botanical Review, 1964
Isolation and Chemistry 668 General Isolation Procedures 668 The Chlorogenic Acids 671 Additional Quinic Acid Depsides 677 Other Phenylpropenoyl Depsides 680 Transesterification Reactions in Quinic Acid Depsides 681 The Chlorogenic Acid-Caffeine Complex ...
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Chlorogenic Acid of Lettuce Seeds

Nature, 1960
THE high concentration of chlorogenic acid in lettuce seed has not previously been reported. Fig. 1 compares the ultra-violet absorption spectrum of a methanol solution of chlorogenic acid, 0.02 gm./l., with that of a methanol extract of 1 gm. of lettuce seed made up to 1 litre.
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On the variability of chlorogenic acid concentration

Oecologia, 1972
The plasticity of phenolic acid concentration in plants under various physiological stress situations raises questions concerning the ecological significance of such behavior. Helianthus annuus L. is remarkably plastic with regard to chlorogenic and ischlorogenic acid concentrations when subjected to nitrogen deficiency, NaCl-stress, short exposures to
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