A high performance liquid chromatography-ultraviolet(HPLC-UV)fingerprint method for the overall chemical analysis of edible mushrooms was established based on Auricularia heimuer for the first time,and then applied to...A high performance liquid chromatography-ultraviolet(HPLC-UV)fingerprint method for the overall chemical analysis of edible mushrooms was established based on Auricularia heimuer for the first time,and then applied to analyze 60 batches of A.heimuer,Auricularia cornea.Auricularia cornea*Yu Muer’and TremeUa fuciformis.A total of 9 characteristic peaks of A.heimuer.11 characteristic peaks of A.cornea,6 characteristic peaks of A.cornea‘Yu Muer’,and 9 characteristic peaks of I fuciformis were designated.Then,a combinatory analysis,including similarity evaluation,hierarchical cluster analysis and principal component analysis,revealed the chemical consistency and difference between samples from the same and different species.The HPLC fingerprint method established in this paper could be used to characterize the components of A.heimuer,A.cornea,A.cornea‘Yu Muer’,and T.fuciformis and discriminate the 4 edible mushrooms effectively in combination with pattern recognition analysis.展开更多
Background Melilotus suaveolens Ledeb （M. suaveolens Ledeb） has long been used as a folk medicine in inflammation-related therapy. This study was undertaken to determine the anti-inflammatory effect of the plant. Me...Background Melilotus suaveolens Ledeb （M. suaveolens Ledeb） has long been used as a folk medicine in inflammation-related therapy. This study was undertaken to determine the anti-inflammatory effect of the plant. Methods Petroleum ether fraction, ethyl acetate fraction, n-butanol fraction, aqueous fraction were obtained from ethanol extract of M. suaveolens Ledeb and evaluated by high performance liquid chromatography （HPLC）. While dexamethasone （DM） was used as a positive control, the effects of different solution fractions of ethanol extract on tumor necrosis factor α （TNF-α） mRNA, cyclooxygenase 2 （COX-2） mRNA, COX-2 and nuclear factor KB （NF-KB） of LPS-stimulated RAW 264.7 cells were studied by real-time PCR, Westem blot analysis and immunocytochemical assay, respectively. Results Coumarin was one of the main ingredients in different solution fractions of ethanol extract except the aqueous fraction with no inflammatory effect. The petroleum ether fraction, ethyl acetate fraction and n-butanol fraction of ethanol extract could inhibit the production of TNF-α mRNA, COX-2 mRNA and NF-KB to some extent. Conclusions Different solution fractions of ethanol extract from M. suaveolens Ledeb had similar anti-inflammatory effect as did dexamethasone except the aqueous fraction. Coumarin was likely to be essential to the anti-inflammatory effect, and other ingredients might attribute to their different anti-inflammatory effects from the HPLC fingerprint.展开更多
基金This publication was financially supported by the National Key R&D Program of China(2018YFD0400202 and 2018YFD0400200).
文摘A high performance liquid chromatography-ultraviolet(HPLC-UV)fingerprint method for the overall chemical analysis of edible mushrooms was established based on Auricularia heimuer for the first time,and then applied to analyze 60 batches of A.heimuer,Auricularia cornea.Auricularia cornea*Yu Muer’and TremeUa fuciformis.A total of 9 characteristic peaks of A.heimuer.11 characteristic peaks of A.cornea,6 characteristic peaks of A.cornea‘Yu Muer’,and 9 characteristic peaks of I fuciformis were designated.Then,a combinatory analysis,including similarity evaluation,hierarchical cluster analysis and principal component analysis,revealed the chemical consistency and difference between samples from the same and different species.The HPLC fingerprint method established in this paper could be used to characterize the components of A.heimuer,A.cornea,A.cornea‘Yu Muer’,and T.fuciformis and discriminate the 4 edible mushrooms effectively in combination with pattern recognition analysis.
文摘Background Melilotus suaveolens Ledeb （M. suaveolens Ledeb） has long been used as a folk medicine in inflammation-related therapy. This study was undertaken to determine the anti-inflammatory effect of the plant. Methods Petroleum ether fraction, ethyl acetate fraction, n-butanol fraction, aqueous fraction were obtained from ethanol extract of M. suaveolens Ledeb and evaluated by high performance liquid chromatography （HPLC）. While dexamethasone （DM） was used as a positive control, the effects of different solution fractions of ethanol extract on tumor necrosis factor α （TNF-α） mRNA, cyclooxygenase 2 （COX-2） mRNA, COX-2 and nuclear factor KB （NF-KB） of LPS-stimulated RAW 264.7 cells were studied by real-time PCR, Westem blot analysis and immunocytochemical assay, respectively. Results Coumarin was one of the main ingredients in different solution fractions of ethanol extract except the aqueous fraction with no inflammatory effect. The petroleum ether fraction, ethyl acetate fraction and n-butanol fraction of ethanol extract could inhibit the production of TNF-α mRNA, COX-2 mRNA and NF-KB to some extent. Conclusions Different solution fractions of ethanol extract from M. suaveolens Ledeb had similar anti-inflammatory effect as did dexamethasone except the aqueous fraction. Coumarin was likely to be essential to the anti-inflammatory effect, and other ingredients might attribute to their different anti-inflammatory effects from the HPLC fingerprint.
