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12 výsledky
Quantification of maltol in Korean ginseng (Panax ginseng) products by high-performance liquid chromatography-diode array detector.
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BACKGROUND
Maltol, as a type of phenolic compounds, is produced by the browning reaction during the high-temperature treatment of ginseng. Thus, maltol can be used as a marker for the quality control of various ginseng products manufactured by high-temperature treatment including red ginseng. For
Increases of 2-furanmethanol and maltol in Korean red ginseng during explosive puffing process.
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The explosive puffing process may provide characteristic physicochemical properties in red ginseng. The effects of explosive puffing on the changes of volatiles in red ginseng were investigated using headspace-solid phase microextraction (HS-SPME)-gas chromatograph (GC) with a mass selective
[Chemical constituents of Chinese red ginseng].
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The chemical constituents of Chinese red ginseng (Panax ginseng) were investigated. The chemical constituents were isolated and purified by silca gel, ODS, and Sephedex LH-20, column chromatography, and preparative HPLC. Their chemical structures were elucidated on the basis of physicochemical
Study on the nitric oxide scavenging effects of ginseng and its compounds.
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In this study, an in vitro nitric oxide (*NO)-generating system was used to investigate the *NO-scavenging effects of methanolic extracts of white ginseng (Panax ginseng C.A. Meyer), red ginseng, and sun ginseng and several ginsenosides and phenolic compounds. Sun ginseng extract showed the
Increase in the free radical scavenging activity of ginseng by heat-processing.
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To investigate whether or not the radical scavenging activity of ginseng is enhanced by heat processing, we evaluated the scavenging effects of white ginseng (WG), red ginseng (RG, steamed ginseng at 98-100 degrees C) and sun ginseng (SG, steamed ginseng at 120 degrees C) on nitric oxide, superoxide
[A study on maillard reaction and its products during processing of red ginseng].
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OBJECTIVE
To isolate and identify maltol and maltol-3-O-beta-D-glucoside and argininyl-fructosyl-glucoside in red ginseng, and prove that they are products of processing through comparative analysis and artificial synthesis of different products of ginseng.
METHODS
Column chromatography, spectral
Therapeutic potential of heat-processed Panax ginseng with respect to oxidative tissue damage.
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Panax ginseng has been reported to exhibit a wide range of pharmacological and physiological actions. A method of heat-processing to enhance the efficacy of ginseng is well established in South Korea based on a long history of ethnopharmacological evidence. We investigated the increase in free
Evaluation of the peroxynitrite scavenging activity of heat-processed ginseng.
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To ascertain the principal active peroxynitrite (ONOO(-)) scavenging components of heat-processed Panax ginseng C.A. Meyer (sun ginseng [SG]), the ONOO(-) scavenging activities of fractions and components of SG were compared. The results demonstrated that the ONOO(-) scavenging ability of SG was due
Heat-processed Panax ginseng and diabetic renal damage: active components and action mechanism.
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Diabetic nephropathy is one of the serious complications in patients with either type 1 or 2 diabetes mellitus but current treatments remain unsatisfactory. Results of clinical research studies demonstrate that Panax ginseng can help adjust blood pressure and reduce blood sugar and may be
In situ analysis of chemical components induced by steaming between fresh ginseng, steamed ginseng, and red ginseng.
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BACKGROUND
The chemical constituents of Panax ginseng are changed by processing methods such as steaming or sun drying. In the present study, the chemical change of Panax ginseng induced by steaming was monitored in situ.
METHODS
Samples were separated from the same ginseng root by incision during
Black Ginseng and Its Saponins: Preparation, Phytochemistry and Pharmacological Effects.
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Black ginseng is a type of processed ginseng that is prepared from white or red ginseng by steaming and drying several times. This process causes extensive changes in types and amounts of secondary metabolites. The chief secondary metabolites in ginseng are ginsenosides (dammarane-type triterpene
Study on the hydroxyl radical scavenging activity changes of ginseng and ginsenoside-Rb2 by heat processing.
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The free radical scavenging activities of Panax ginseng C.A. MEYER are known to increase by heat processing. Phenolic acids and Maillard reaction products (MRPs) have been suggested as active free radical scavenging components from our previous research, but heat processing-induced chemical and
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