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Chlorogenic Acid UVA–UVB Photostability
Photochemistry and Photobiology, 2010AbstractChlorogenic acid is a natural potent antioxidant. It can be used in cosmetics formulations, but for this purpose its photochemical stability should be determined to ensure that the compound will not be degraded after UV radiation exposure. To evaluate this possibility, the concentration of a chlorogenic acid solution was determined by HPLC ...
Diogo P, Rivelli +5 more
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Antigenic properties of chlorogenic acid
Journal of Allergy, 1964Abstract Rabbits sensitized to chlorogenic acid by means of intramuscular and foot pad injections with chlorogenic acid emulsified in complete Freund's adjuvant showed positive Arthus reactions to chlorogenic acid and to green coffee extract. Sera obtained from the sensitized rabbits gave positive PCA reactions to chlorogenic acid and contained ...
Samuel O. Freedman +3 more
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Journal of Food Science, 1987
ABSTRACT Chlorogenic acid at 5° published threshold concentration (100 mg/ L) in aqueous 0.2% potassium acid tartrate was not significantly more bitter than aqueous 0.2% potassium tartrate alone when evaluated by taste panel.
CHARLES W. NAGEL +2 more
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ABSTRACT Chlorogenic acid at 5° published threshold concentration (100 mg/ L) in aqueous 0.2% potassium acid tartrate was not significantly more bitter than aqueous 0.2% potassium tartrate alone when evaluated by taste panel.
CHARLES W. NAGEL +2 more
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Chlorogenic acid-protein interactions in sunflower
Journal of Agricultural and Food Chemistry, 1974Phenolic compounds in Commander, Majak and Valley sunflowers varied between 3.0 and 3.5g of chlorogenic acid per 100 g of flour. Under neutral and alkaline conditions, sunflower protein solutions develop dark green and brown colors because of bonding with oxidation products of polyphenolic compounds, especially chlorogenic acid.
Sabir, Mohammad A. +2 more
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Chlorogenic acid composition of instant coffees
The Analyst, 1984A method, based on high-performance liquid chromatography, is described for the determination of chlorogenic acid isomers in instant coffee. Identification of the individual components was assisted by the preparation of isomeric mixtures by the isomerisation of available compounds and quantification based on published ultraviolet molar absorptivities ...
L C, Trugo, R, Macrae
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Journal of Medicinal Chemistry, 1997
The enzyme system glucose-6-phosphatase (EC 3.1.3.9) plays a major role in the homeostatic regulation of blood glucose. It is responsible for the formation of endogenous glucose originating from gluconeogenesis and glycogenolysis. Recently, chlorogenic acid was identified as a specific inhibitor of the glucose-6-phosphate translocase component (Gl-6-P ...
H, Hemmerle +7 more
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The enzyme system glucose-6-phosphatase (EC 3.1.3.9) plays a major role in the homeostatic regulation of blood glucose. It is responsible for the formation of endogenous glucose originating from gluconeogenesis and glycogenolysis. Recently, chlorogenic acid was identified as a specific inhibitor of the glucose-6-phosphate translocase component (Gl-6-P ...
H, Hemmerle +7 more
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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
openaire +1 more source