Results 261 to 270 of about 71,553 (309)
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Phytochemistry, 1966
Abstract Experiments in which potato tuber slices were maintained on a tracer amount of [α- 14 C]cinnamic acid and synthetic 3- 0 -cinnamoylquinic acid (pH adjusted to 6) showed that if this conjugate is a free intermediate in chlorogenic acid (3- 0 -caffeoylquinic acid) formation, then the active pool of the compound is very small and is contained ...
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Abstract Experiments in which potato tuber slices were maintained on a tracer amount of [α- 14 C]cinnamic acid and synthetic 3- 0 -cinnamoylquinic acid (pH adjusted to 6) showed that if this conjugate is a free intermediate in chlorogenic acid (3- 0 -caffeoylquinic acid) formation, then the active pool of the compound is very small and is contained ...
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2015
Abstract In this chapter, we describe the contents of chlorogenic acids (CGAs) of various species of green and roasted coffee beans. CGAs are a family of esters that are structural analogs of quinic acid with various cinnamate derivatives. A total of 82 CGAs have been detected in green coffee beans.
Yusaku Narita, Kuniyo Inouye
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Abstract In this chapter, we describe the contents of chlorogenic acids (CGAs) of various species of green and roasted coffee beans. CGAs are a family of esters that are structural analogs of quinic acid with various cinnamate derivatives. A total of 82 CGAs have been detected in green coffee beans.
Yusaku Narita, Kuniyo Inouye
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Determination of Chlorogenic Acid
Nature, 1957SLOTTA AND NEISSER1 found that o-dihydroxy-phenolic compounds such as chlorogenic acid and caffeic acid could be oxidized quantitatively with an alkaline hypoiodate solution, and used this method for the determination of these acids in coffee. They found that for every mole of chlorogenic or caffeic acid, 10 gm.-atoms of iodine were required for ...
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2019
The chapter summarises several aspects of the chemistry of chlorogenic acids in coffee. A short definition of chlorogenic acids (CGAs) is provided. The occurrence of CGAs in coffee is summarised and selected important methods of analysis for profiling, identification and quantitation discussed.
Marius Febi Matei +2 more
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The chapter summarises several aspects of the chemistry of chlorogenic acids in coffee. A short definition of chlorogenic acids (CGAs) is provided. The occurrence of CGAs in coffee is summarised and selected important methods of analysis for profiling, identification and quantitation discussed.
Marius Febi Matei +2 more
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The chlorogenic acids of Hemerocallis
Food Chemistry, 2006The 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, 1967Abstract 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 +2 more
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Chlorogenic Acids in Fruit Trees
Nature, 1952WORK 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 +3 more
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Cognitive and neuroprotective effects of chlorogenic acid
Nutritional Neuroscience, 2016The 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, 2022Piotr Holowinski +2 more
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Chlorogenic Acid as a Natural Scavenger for Hypochlorous Acid
Biochemical and Biophysical Research Communications, 1995The 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 +4 more
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