Author
Min Xu
Other affiliations: Nanjing Normal University, Griffith University
Bio: Min Xu is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Panax notoginseng & Medicine. The author has an hindex of 25, co-authored 122 publications receiving 1832 citations. Previous affiliations of Min Xu include Nanjing Normal University & Griffith University.
Topics: Panax notoginseng, Medicine, Glacier, Glacier mass balance, Theaceae
Papers published on a yearly basis
Papers
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TL;DR: One new flavan-3-ol dimer, talienbisflavan A (1), was isolated from green tea prepared from the leaves of C. taliensis collected from the east side of the Ai-Lao mountains, Yuanjiang county of Yunnan province, China.
Abstract: Camellia taliensis (W. W. Smith) Melchior, belonging to the genus Camellia sect. Thea (Theaceae), is an endemic species distributed from the west and southwest of Yunnan province, China, to the north of Myanmar. Known as a wild tea tree, its leaves have been used commonly for producing tea beverages by the local people of its growing area. One new flavan-3-ol dimer, talienbisflavan A (1), was isolated from green tea prepared from the leaves of C. taliensis collected from the east side of the Ai-Lao mountains, Yuanjiang county of Yunnan province, China. In addition, five hydrolyzable tannins (2-6), five flavonols and flavonol glycosides (9-13), three flavan-3-ols (14-16), nine simple phenolic compounds and glycosides (7, 8, and 17-23), and caffeine (24) were identified. Their structures were determined by detailed spectroscopic analysis. All of the isolated phenolic compounds were tested for their antioxidant activities by DPPH and ABTS(+) radical scavenging assays. The contents of its main chemical compositions were also compared with those collected from the Lincang area of Yunnan province by high-performance liquid chromatography analysis.
26 citations
TL;DR: In this paper, Magnetic biochar modified by quaternary phosphonium salt enhanced the adsorption capacity of extracellular DNA to approximately 9 folds, compared to that of the unmodified.
26 citations
TL;DR: Two new acylated secoiridoid glucosides, named gentistraminosides A (1) and B (2), were isolated from the MeOH extract of Gentiana straminea MAXIM (Gentianaceae) as mentioned in this paper.
Abstract: Two new acylated secoiridoid glucosides. 4'-acetyl-6'-{[2-hydroxy-3-(1-beta-D-glucopyranosyloxy)]benzoyloxy}sweroside and 3',4'-diacetyl-6'-{[2-hydroxy-3-(1-beta-D-glucopyranosyloxy)]benzoyloxy}swertiamarin, named gentistraminosides A (1) and B (2), were isolated from the MeOH extract of Gentiana straminea MAXIM (Gentianaceae), together with twelve known ones, including eight iridoid and secoiridoid glucosides, macrophylloside A (3), loganic acid (4), secologanic acid (5), swertiamarin (6), gentiopicroside (7), loganic acid methyl ester (8), 6'-O-beta-D-glucopyranosyl gentiopicroside (9), and loganic acid 11-O-beta-D-glucopyranosyl ester (10), one flavone C-glucoside, isovitexin (11), one chromenecarboxylic acid glycosyl ester, macrophylloside D (12) and two triterpenoids, 1 alpha,2 alpha,3 beta,24-tetrahydroxyolean-12-en-28-oic acid (13), and 3 beta,6 alpha,24-trihydroxyolean-12-en-28-oic acid (14). Their structures were determined by means of detailed spectroscopic (NMR and MS) analysis.
26 citations
25 citations
TL;DR: The biotransformation of gentiopicroside by asexual mycelia of Cordyceps sinensis yielded two products, one of which was proved to be a new pyridine monoterpene alkaloid.
24 citations
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TL;DR: This review covers the literature published in 2014 for marine natural products, with 1116 citations referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms.
4,649 citations
TL;DR: This review summarizes the chemistry, biosynthesis and occurrence of the compounds involved, namely the C6-C3-C6 flavonoids-anthocyanins, dihydrochalcones, Flavan-3-ols, flavanones, flavones, Flavonols and isoflavones, and the mechanisms underlying these processes are discussed.
1,728 citations
01 Dec 2013
TL;DR: This paper found that the most intensive glacier shrinkage is in the Himalayan region, whereas glacial retreat in the Pamir Plateau region is less apparent, due to changes in atmospheric circulations and precipitation patterns.
Abstract: Glacial melting in the Tibetan Plateau affects the water resources of millions of people. This study finds that—partly owing to changes in atmospheric circulations and precipitation patterns—the most intensive glacier shrinkage is in the Himalayan region, whereas glacial retreat in the Pamir Plateau region is less apparent.
1,599 citations
1,326 citations