Results 21 to 30 of about 4,005 (216)

The isolation of (6S, 9S)-cyclo (prolylvalyl) from marine actinomycete, by use of high speed contercurrent chromatography [PDF]

Journal of the Serbian Chemical Society, 2002
The marine actinomycete B 1758 came from the actinomycete collection of the Alfred Wegener Institute for Polar and Marine Research in Bremerhafen Germany. 1.079 g of raw extract was obtained by fermentation.
Šmelcerović Andrija A., Schiebel Mirko, Đorđević Siniša M.   +2 more
doaj   +1 more source

Optimizations of extraction and separation process of saponins and in vitro antioxidant activity from the female gonad of Apostichopus japonicus

Shipin yu jixie, 2022
Objective: This study aimed to optimize the ultrasonic-assisted extraction technology and HSCCC separation process of saponins from the female gonad of Apostichopus japonicus and to explore their antioxidant activities.
ZHONG Jing-shi, ZHANG Jian, LIU Fang, WANG Gong-ming, WANG Yi-xin   +4 more
doaj   +1 more source

Isolation of Two New Phenolic Glycosides from Castanopsis chinensis Hance by Combined Multistep CC and HSCCC Separation and Evaluation of Their Antioxidant Activity

Molecules, 2023
The characteristics of high polarity and susceptibility to oxidation in phenolic glycosides increase the difficulty of their separation from natural products.
Ya-Feng Wang, Ping Lin, Yong-Lin Huang, Rui-Jie He, Bing-Yuan Yang, Zhang-Bin Liu   +5 more
doaj   +1 more source

The kidney antifibrotic effects of 5,7,3′,4′,5′-pentamethoxyflavone from Bauhinia championii in streptozotocin-induced diabetic rats: in vivo and in vitro experiments

Pharmaceutical Biology, 2023
Context The antidiabetic effects of flavonoids have been reported, but it is still unclear whether 5,7,3′,4′,5′-pentamethoxyflavone, isolated from Bauhinia championii Benth.
Jialin Li, Xiaocui Huang, Kailun He, Suzhen Wu   +3 more
doaj   +1 more source

Separation and Preparation of Sanguinarine and Chelerythrine from Macleaya cordata Root by High Speed Counter-Current Chromatography

Shipin gongye ke-ji, 2022
The aim of this study was to develop a method for the separation and preparation of high purity sanguinarine and chelerythrine by conventional high speed counter-current chromatography.
Changqing JIA, Rui MA, Xicheng QIAN, Dandan WANG, Jiansheng YU   +4 more
doaj   +1 more source

Countercurrent chromatography in analytical chemistry (IUPAC technical report) [PDF]

, 2009
© 2009 IUPACCountercurrent chromatography (CCC) is a generic term covering all forms of liquid-liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid
Abbey, Abe, Abe, Abe, Akiba, Akiba, Akiba, Alain Berthod, Bauer, Bauer, Berthod, Berthod, Berthod, Berthod, Berthod, Berthod, Billardello, Boris Spivakov, Chen, Chen, Chen, Chen, Chmutova, Chmutova, Chmutova, Conway, Conway, Conway, Countercurrent Chromatography, Dekker, Fedotov, Fitz, Friesen, Fujita, Garcia Dominguez, Hashimoto, Hashimoto, Ian A. Sutherland, Ikai, Ito, Ito, Ito, Ito, Ito, Jin, Jin, Jin, Kawamura, Kawamura, Kidwell, Kitazume, Kitazume, Kitazume, Kitazume, Kitazume, Kong, Lee, Lee, Lee, Lee, Liu, Ma, Ma, Mandava, Mandava, Marston, Marston, Marston, Maryutina, Maryutina, Maryutina, Maryutina, Maryutina, Matsuda, Menet, Muralidharan, Nakamura, Nakamura, Oleg Shpigun, Pauli, Pukhovskaya, Ruiz, Ruiz, Ruth, Schaufelberger, Schaufelberger, Schreiber, Shang, Spivakov, Spivakov, Spivakov, Stark, Sutherland, Tanaka, Tatyana Maryutina, Thurman, Tian, Usuda, Usuda, Wang, Wang, Watkins, Winterhalter, Wood, Wu, Yanagida, Yang, Yang, Yang, Yoshida, Yu, Zhang, Zhang   +112 more
core   +2 more sources

Determination of the chemical composition of tea by chromatographic methods: a review [PDF]

, 2015
Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie, Nemzer, Boris V., Yashin, Alexandr Ya, Yashin, Yakov I.   +3 more
core   +1 more source

Liquid chromatographic strategies for separation of bioactive compounds in food matrices [PDF]

, 2018
Nowadays, there is an increasing attention for nutraceuticals and, in general, bioactive compounds naturally present in food. Indeed, the possibility of preserving human health and preventing disease (e.g., cardiovascular diseases, cancer etc.) by the ...
Capriotti, Anna Laura, Cavaliere, Chiara, La Barbera, Giorgia, Laganà, Aldo, Montone, Carmela Maria, Piovesana, Susy   +5 more
core   +1 more source

Separation of Flavonoids and Purification of Chlorogenic Acid from Bamboo Leaves Extraction Residues by Combination of Macroporous Resin and High-Speed Counter-Current Chromatography

Molecules, 2023
Flavonoids are major active small-molecule compounds in bamboo leaves, which can be easily obtained from the bamboo leaves extraction residues (BLER) after the polysaccharides extraction.
Yifeng Zhou, Meixu Chen, Xinyi Huo, Qilin Xu, Linlin Wu, Liling Wang   +5 more
doaj   +1 more source

COMMENTS ON VAN DEEMTER PLOT IN HIGH SPEED COUNTERCURRENT CHROMATOGRAPHY [PDF]

Journal of Liquid Chromatography & Related Technologies, 2001
An inaccuracy in the computation of the linear mobile phase velocity rendered the whole content of a recently published article, Q.Z. Du, P.D. Wu, Y, Ito, J. Liq. Chromatogr. & Rel. Technol., 23(19), 2929 (2000), erroneous. Since the stationary phase volume was given, the correct mobile phase velocity values were computed and the new values for the Van
Berthod, Alain, Foucault, Alain
openaire   +1 more source