Jing-Hua Yang

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The microbial community compositions of a chemostat enriched in a thermophilic (55 °C) mixed culture fermentation (MCF) for hydrogen production under different operational conditions were revealed in this work by integrating denaturing gradient gel electrophoresis (DGGE), Illumina Miseq high-throughput sequencing, and 16S rRNA clone library sequencing. The(More)
0009-3130/12/4802-0346 2012 Springer Science+Business Media, Inc. 1) Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China, fax: 0871 5035538, e-mail: yangjh@ynu.edu.cn; yangjhkm@hotmail.com; 2) Yunnan Academy of Tobacco Science, Kunming(More)
A new 2'-oxygenated flavone glycoside, named glutin, was isolated from Litsea glutinosa (Lour.) C. B. Rob. along with four known compounds. The structure was identified as 2',5,7-trihydroxy-6-methoxyflavone 2'-O-beta-D-glucopyranoside (1) on the basis of extensive spectroscopic analysis.
Seven coumarins, including a new O-terpenoidal coumarin, named anisumarin (1), were isolated from Clausena anisum-olens Merr. The structure of this new coumarin was identified as 7-{(E)-4-[(4-acetoxymethyl-1,5-dihydro-5-oxo)-2H-furylium-2-yl]-3-methyl-2-butenoxy}-8-methoxycoumarin on the basis of an extensive spectroscopic analysis.
Phytochemical study of the whole plant of Pteris multifida Poir. afforded eight compounds 1–8. Their structures were established on the basis of spectroscopic methods. Compound 1 was a new natural pterosin, (2R)-acetyl pterosin B, and was evaluated for cytotoxic activity against human tumor cell lines HL-60, SMMC-7721, A-549, MCF-7, and SW480.
A phytochemical study of the ethanolic extract of Stachyurus imalaicus var. himalaicus was undertaken and as a result a new polyoxygenated steroid, named stachsterol ((20S)-20, 25-dihydroxy-4-cholesten-3-one, 1) and three known ecdysteroids, 20-hydroxyecdysone (2), 20-hydroxyecdysone-20, 22-monoacetonide (3) and polypodine B-20,22-monoacetonide (4), were(More)
0009-3130/11/4701-0112 2011 Springer Science+Business Media, Inc. Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China, fax: 0871 5035538, e-mail: kmwangys@hotmail.com. Published in Khimiya Prirodnykh Soedinenii, No. 1, pp. 100–101,(More)