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Your search keyword '"Qiong-Ming Xu"' showing total 3 results
Start Over Author "Qiong-Ming Xu" Journal journal of agricultural and food chemistry
3 results on '"Qiong-Ming Xu"'

1. Atypical Nitrogen-Containing Flavonoid in the Fruits of Cumin (

Author

Naixin, Kang, Renyikun, Yuan, Liting, Huang, Zhenjie, Liu, Dan, Huang, Lu, Huang, Hongwei, Gao, Yanli, Liu, Qiong-Ming, Xu, and Shilin, Yang

Subjects
Flavonoids, Cuminum, Molecular Structure, Cell Survival, Plant Extracts, Macrophages, Anti-Inflammatory Agents, NF-kappa B, Nitric Oxide Synthase Type II, Mice, RAW 264.7 Cells, Fruit, Seeds, Animals, Mitogen-Activated Protein Kinases
Abstract

The dried seeds of

Published
2019

2. New Triterpenoid Saponins from Green Vegetable Soya Beans and Their Anti-Inflammatory Activities

Author

Kejun Deng, Taoyun Wang, Ikhlas A. Khan, Shilin Yang, Xiuhua Lan, Jianping Zhao, Qiong Ming Xu, Xuhui Xin, Yanli Liu, and Yiyi Chen

Subjects
0106 biological sciences, 0301 basic medicine, Stereochemistry, medicine.drug_class, Anti-Inflammatory Agents, 01 natural sciences, Anti-inflammatory, Nitric oxide, 03 medical and health sciences, chemistry.chemical_compound, Mice, Triterpenoid, Vegetables, medicine, Animals, Green Vegetable, Triterpenoid saponin, chemistry.chemical_classification, Molecular Structure, Chemistry, Plant Extracts, Macrophages, General Chemistry, Saponins, Triterpenes, 030104 developmental biology, RAW 264.7 Cells, Punicanolic acid, Soybeans, General Agricultural and Biological Sciences, Two-dimensional nuclear magnetic resonance spectroscopy, 010606 plant biology & botany
Abstract

Ten compounds were isolated and identified from green vegetable soya beans, of which five are new triterpenoid saponins (1-5) and five are known compounds (6-10). The chemical structures of the five triterpenoid saponins (1-5) were elucidated to be 3β,24-dihydroxy-22β,30-epoxy-30-oxoolean-12-en 3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-xylopyranosyl-(1 → 2)-β-d-glucuronopyranoside, 1; 3β,24-dihydroxy-22β,30-epoxy-30-oxoolean-12-en 3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-(3″-O-formyl)-galactopyranosyl-(1 → 2)-β-d-glucuronopyranoside, 2; 22-keto-3β,24-dihydroxy oleanane-12-ene 3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-(3″-O-formyl)-galactopyranosyl-(1 → 2)-β-d-glucuronopyranoside, 3; 3β,22β,24-trihydroxy oxyolean-18(19)-ene-29-acid 3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-galactopyranosyl-(1 → 2)-β-d-glucuronopyranoside, 4; and punicanolic acid 3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-galactopyranosyl-(1 → 2)-β-d-glucuronopyranoside, 5 from the spectroscopic data (IR, GTC/FID, HR-ESI-MS, and 1D and 2D NMR). The nitric oxide release inhibitions of compounds 1-10 in LPS-stimulated RAW264.7 cells were evaluated, and the data suggested that compounds 1, 2, and 5 might possess moderate anti-inflammatory activities, with IC

Published
2017

3. New triterpenoid saponins from Ilex cornuta and their protective effects against H2O2-induced myocardial cell injury

Author

Qiong-ming Xu, Shanshan Li, Shilin Yang, Jianping Zhao, Zhong Chen, Ikhlas A. Khan, and Yanli Liu

Subjects
Cardiotonic Agents, Stereochemistry, DPPH, Coronary Disease, Ilex, Chemical reaction, Cell Line, chemistry.chemical_compound, Triterpenoid, Organic chemistry, Myocytes, Cardiac, biology, Molecular Structure, Plant Extracts, General Chemistry, Ilex cornuta, Free Radical Scavengers, Hydrogen Peroxide, Plant Components, Aerial, Saponins, biology.organism_classification, Triterpenes, Oxidative Stress, chemistry, Myocardial cell, General Agricultural and Biological Sciences, Two-dimensional nuclear magnetic resonance spectroscopy
Abstract

Five new triterpenoid saponins, 1-5, together with 10 known ones, 6-15 were isolated from the aerial parts of Ilex cornuta. The structures of compounds 1-5 were determined as 3β-O-α-L-arabinopyranosyl-19α,23-dihydroxy-20α-urs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester, 1; 3β-O-β-D-glucopyranosyl-(1→2)-α-L-arabinopyranosyl-19-hydroxy-20α-urs-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester, 2; 19α,23-dihydroxyurs-12-en-28-oic acid 3β-O-β-D-glucuronopyranoside-6-O-methyl ester, 3; 19α,23-dihydroxyurs-12-en-28-oic acid 3β-O-[β-D-glucuronopyranoside-6-O-methyl ester]-28-O-β-D-glucopyranosyl ester, 4; and 3β-O-[α-L-arabinopyranosyl-(1→2)-β-D-glucuronic acid]-oleanolic acid 28-O-β-D-glucopyranosyl ester, 5, on the basis of spectroscopic analyses (IR, ESI-MS, HR-ESI-MS, 1D and 2D NMR) and chemical reactions. Protective effects of compounds 1-15 were tested against H2O2-induced H9c2 cardiomyocyte injury, and the data showed that compounds 1, 4, 6, and 13 had significant cell-protective effects. No significant DPPH radical scavenging activity was observed for compounds 1-15.

Published
2013

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