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A New Segmented Gradient HPLC-DAD and Spectra Index Plots for Measuring Caffeine and Chlorogenic Acid in Dark and Green Coffees. [PDF]

ACS Omega
Abou El-Ezz RF, Meselhy K, Emara S, Ibrahim A.   +3 more
europepmc   +1 more source

Variation in secondary chemistry within a natural population of birch, effect of genotype, environment and ontogeny [PDF]

Laitinen, Marja-Leena
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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.
openaire   +3 more sources

Antioxidative mechanisms in chlorogenic acid

Food Chemistry, 2017
Although chlorogenic acid (5CQA) is an important ingredient of various foods and beverages, mechanisms of its antioxidative action have not been fully clarified. Besides electron spin resonance experiment, this study includes thermodynamic and mechanistic investigations of the hydrogen atom transfer (HAT), radical adduct formation (RAF), sequential ...
Jelena, Tošović, Svetlana, Marković, Jasmina M, Dimitrić Marković, Miloš, Mojović, Dejan, Milenković   +4 more
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Chlorogenic Acid UVA–UVB Photostability

Photochemistry and Photobiology, 2010
AbstractChlorogenic 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, Carlos A H, Filho, Rebeca L, Almeida, Cristina D, Ropke, Tânia C H, Sawada, Silvia B M, Barros   +5 more
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Antigenic properties of chlorogenic acid

Journal of Allergy, 1964
Abstract 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, Robert Shulman, John Krupey, A.H. Sehon   +3 more
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Is Chlorogenic Acid Bitter?

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, IVAN W. HERRICK, WANDA R. GRABER   +2 more
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Chlorogenic acid-protein interactions in sunflower

Journal of Agricultural and Food Chemistry, 1974
Phenolic 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., Sosulski, Frank W., Finlayson, Alexander J.   +2 more
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Chlorogenic acid composition of instant coffees

The Analyst, 1984
A 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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Chlorogenic Acid and Synthetic Chlorogenic Acid Derivatives:  Novel Inhibitors of Hepatic Glucose-6-phosphate Translocase

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, H J, Burger, P, Below, G, Schubert, R, Rippel, P W, Schindler, E, Paulus, A W, Herling   +7 more
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