Results 21 to 30 of about 740 (163)

Separation of avermectin components from Streptomyces avemitilis extraction using high-speed counter-current chromatography [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2013
Three compounds of antibiotics-avermectins from fertilizing product of Streptomyces avemitilis are achieved by high-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water (6:
Su Weike, Hou Zhuoni, Liang Xianrui
doaj   +2 more sources

An efficient high‐speed counter‐current chromatography method for the preparative separation of potential antioxidants from Paeonia lactiflora Pall. combination of in vitro evaluation and molecular docking

Journal of Separation Science, Volume 45, Issue 11, Page 1856-1865, June 2022., 2022
Paeonia lactiflora Pall., one of the most famous classical herbal medicine, has been used to treat diseases for over 1200 years. In this research, the functional ingredients were purified by online‐switch two‐dimensional high‐speed counter‐current chromatography combined with inner‐recycling and continuous injection mode.
Xuan Sun, Long Chen, Huijiao Yan, Li Cui, Hidayat Hussain, Lei Xie, Jie Liu, Yujuan Jiang, Zhaoqing Meng, Guiyun Cao, Jeonghill Park, Daijie Wang   +11 more
wiley   +1 more source

[Retracted] Two Myricetin‐Derived Flavonols from Morella rubra Leaves as Potent α‐Glucosidase Inhibitors and Structure‐Activity Relationship Study by Computational Chemistry

Oxidative Medicine and Cellular Longevity, Volume 2022, Issue 1, 2022., 2022
Diabetes mellitus (DM) is a chronic disease characterized by hyperglycemia, and oxidative stress is an important cause and therapeutic target of DM. Phytochemicals such as flavonols are important natural antioxidants that can be used for prevention and treatment of DM.
Yilong Liu, Ruoqi Wang, Chuanhong Ren, Yifeng Pan, Jiajia Li, Xiaoyong Zhao, Changjie Xu, Kunsong Chen, Xian Li, Zhiwei Gao, Lei Chen   +10 more
wiley   +1 more source

Luteolin Isolated from Polygonum cuspidatum Is a Potential Compound against Nasopharyngeal Carcinoma

BioMed Research International, Volume 2022, Issue 1, 2022., 2022
Introduction. To reveal the mechanisms by which luteolin, the major bioactive component of the Traditional Chinese Medicine (TCM) Polygonum cuspidatum, inhibits proliferation and promotes apoptosis in nasopharyngeal carcinoma (NPC) CNE2 cells. Methods. Based on the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP),
Yu Xiong, Wenliang Zhong, Jie Liu, Bo Cheng, Jingying Fan, Fangliang Zhou, Lan He, Daofa Tian, Yingchun He, Rossana C Zepeda   +9 more
wiley   +1 more source

Counter-current chromatography for the separation of terpenoids: A comprehensive review with respect to the solvent systems employed [PDF]

, 2014
Copyright @ 2014 The Authors.This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.Natural ...
Skalicka-Woźniak, K, Krystyna Skalicka-Woźniak, Ian Garrard, Garrard, I   +3 more
core   +1 more source

Red beet betalains extraction process: A comprehensive review of methods, applications, and physicochemical properties. [PDF]

Food Sci Nutr
Hydro‐alcoholic solutions extracted more betalains from red beet compared to water. Moreover, novel extraction methods were more efficient than conventional ones for the extraction of red beet betalains. Red beet betalains have gained attention due to their health‐promoting advantages and applications.
Eyshi S, Ghareaghajlou N, Afshar Mogaddam MR, Ghasempour Z.   +3 more
europepmc   +2 more sources

Valeriana rigida Ruiz & Pav. Root Extract: A New Source of Caffeoylquinic Acids with Antioxidant and Aldose Reductase Inhibitory Activities

Foods, 2021
Valeriana rigida Ruiz & Pav. (V. rigida) has long been used as a herbal medicine in Peru; however, its phytochemicals and pharmacology need to be scientifically explored. In this study, we combined the offline 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH)
Guanglei Zuo, Hyun-Yong Kim, Yanymee N. Guillen Quispe, Zhiqiang Wang, Kang-Hyuk Kim, Paul H. Gonzales Arce, Soon-Sung Lim   +6 more
doaj   +1 more source

Isolamento do alcalóide ricinina das folhas de Ricinus communis (Euphorbiaceae) através de cromatografias em contracorrente Isolation of the alkaloid ricinine from the leaves of Ricinus communis (Euphorbiaceae) through counter-current chromatography

Química Nova, 2005
Droplet counter-current chromatography, rotation locular counter-current chromatography and high-speed counter-current chromatography were applied to the preparative separation of the alkaloid ricinine from the dichloromethane extracts of Ricinus ...
Ana Cristina Leite, Elaine Cristina Cabral, Djalma Antônio P. dos Santos, João Batista Fernandes, Paulo Cezar Vieira, M. Fátima das G. F. da Silva   +5 more
doaj   +1 more source

Isolation and Identification of Two Novel Attractant Compounds from Chinese Cockroach (Eupolyphaga sinensis Walker) by Combination of HSCCC, NMR and CD Techniques

Molecules, 2013
High-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of n-hextane-ethyl acetate-methanol-water (1.5:1:1.5:1, v/v/v/v) was applied to the isolation and purification of attractants from Chinese cockroach, Eupolyphaga ...
Bin Wu, Xiaodan Wu, Wei Jiang
doaj   +1 more source

Amelioration by Idesia polycarpa Maxim. var. vestita Diels. of Oleic Acid‐Induced Nonalcoholic Fatty Liver in HepG2 Cells through Antioxidant and Modulation of Lipid Metabolism

Oxidative Medicine and Cellular Longevity, Volume 2020, Issue 1, 2020., 2020
Idesia polycarpa Maxim. var. vestita Diels (I. polycarpa) is well known as an edible oil plant which contains abundant linoleic acid and polyphenols. The objective of this study was to maximize the by‐product of defatted fruit of I. polycarpa. We found that the fraction D of ethyl acetate extract (EF‐D) contained more polyphenols, which contribute to ...
Na Li, Yi-ran Sun, Li-bo He, Lei Huang, Ting-ting Li, Tao-yu Wang, Lin Tang, German Gil   +7 more
wiley   +1 more source