Results 31 to 40 of about 2,940 (212)

Methodology for Porphyrin Isolation by High-Performance Countercurrent Chromatography

Natural Product Communications, 2014
Countercurrent chromatography is a versatile technique for the isolation of a wide variety of plant substances. However, little attention has been devoted to the application of this technique for the isolation of porphyrins.
Amaro C. Ramos, Fernanda S. Neves, Maria Raquel G. Vega, Edmilson J. Maria, Rodrigo R. Oliveira’   +4 more
doaj   +1 more source

Rutamarin: Efficient Liquid–Liquid Chromatographic Isolation from Ruta graveolens L. and Evaluation of Its In Vitro and In Silico MAO-B Inhibitory Activity

Molecules, 2020
Naturally occurring coumarins are a group of compounds with many documented central nervous system (CNS) activities. However, dihydrofuranocoumarins have been infrequently investigated for their bioactivities at CNS level. Within the frame of this study,
Ewelina Kozioł, Simon Vlad Luca, Hale Gamze Ağalar, Begüm Nurpelin Sağlık, Fatih Demirci, Laurence Marcourt, Jean-Luc Wolfender, Krzysztof Jóźwiak, Krystyna Skalicka-Woźniak   +8 more
doaj   +1 more source

The isolation of (6S, 9S)-cyclo(prolylvalyl) from marine actinomycete, by use of high speed countercurrent 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.
SINISA DJORDJEVIC, ANDRIJA SMELCEROVIC, MIRKO SCHIEBEL   +2 more
doaj  

Countercurrent chromatography in analytical chemistry (IUPAC technical report)

, 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
Sutherland, IA, Ian A. Sutherland, Tatyana Maryutina, Maryutina, T, Spivakov, B, Boris Spivakov, Shpigun, O, Berthod, A, Alain Berthod, Oleg Shpigun   +9 more
core   +1 more source

Preparative separation of polyphenols from artichoke by polyamide column chromatography and high-speed counter-current chromatography

Química Nova, 2013
An efficient method for the rapid separation and purification of polyphenols from artichoke by polyamide column chromatography in combination with high-speed counter-current chromatography (HSCCC) was successfully built.
Xikai Shu, Mei Wang, Daicheng Liu, Daijie Wang, Xiaojing Lin, Jianhua Liu, Xiao Wang, Luqi Huang   +7 more
doaj   +1 more source

Asymmetric Dialysis: Truly Unified and Simultaneous Single‐Pass Concentration and Buffer Exchange

Biotechnology and Bioengineering, EarlyView.
Asymmetric dialysis, a novel one‐step continuous process combining ultrafiltration and diafiltration, achieves high product concentrations (up to 200 g/L) with low pressures and reduces buffer consumption by 75% compared to conventional methods. This sustainable, low‐cost technology demonstrates significant potential for integration into continuous ...
Ujwal Patil, Michelle Chen, Irina Ramos, Jon Coffman   +3 more
wiley   +1 more source

Continuous Purification of mRNA Produced by In Vitro Transcription Using High Performance Countercurrent Membrane Purification

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Messenger ribonucleic acid (mRNA) therapeutics produced by in vitro transcription must be purified to remove residual enzymes and free nucleotides. This study examines the use of high‐performance countercurrent membrane purification (HPCMP) for the purification of mRNA therapeutics based on differences in the rate of diffusion across ...
Ziqiao Wang, Amin Javidanbardan, Ali Behboudi, Andrew L. Zydney   +3 more
wiley   +1 more source

Advances in Anthocyanin Recovery and Purification From Natural Sources: Bioavailability, Mechanistic Action in the Human Body and Applications in Novel Food Development

Food Chemistry International, EarlyView.
This review highlights green recovery, purification, stabilisation, bioavailability, health relevance, and novel food applications of anthocyanins from natural and agro‐industrial sources. ABSTRACT Anthocyanins are water‐soluble natural pigments and multifunctional food ingredients that support clean‐label colour, antioxidant activity, and value‐added ...
Chandan Kumar Sahu, Soumitra Banerjee, Venkata Krishna Bayineni, Ravi‐Kumar Kadeppagari, Amit Arora   +4 more
wiley   +1 more source

Isolation and identification of highly active anticholinesterase ingredients from fermented soybean products

CyTA - Journal of Food, 2017
Inhibitory activities of ethanol extracts from seven fermented soybean products, including douchi, sufu, stinky tofu, to acetylcholinesterase were determined, and crude extract from Yongchuan douchi, which showed the strongest inhibitory effect, was ...
Yunbin Zhang, Mengyue Wei, Weidi Li, Yifei Wang, Jingwen Wang   +4 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