Results 41 to 50 of about 3,973 (221)

Research Progress in the Separation of Chemical Components from Essential Oils by High-Speed Countercurrent Chromatography

open access: yesSeparations
Essential oils (EOs) are vital secondary metabolites in plants. They have garnered substantial attention owing to their distinct flavors and desirable attributes, including potent antioxidant, antibacterial, and antitumor properties.
Linhong He   +3 more
doaj   +1 more source

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

open access: yesJournal 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   +2 more
doaj  

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

open access: yesCyTA - 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   +4 more
doaj   +1 more source

Emerging technologies for the integration and intensification of downstream bioprocesses [PDF]

open access: yes, 2013
Downstream processing is currently the major bottleneck for bioproduct generation. In contrast to the advances in fermentation processes, the tools used for downstream processes have struggled to keep pace in the last 20 years. Purification bottlenecks
Aires Barros, M. Raquel   +8 more
core   +1 more source

Diatoms synthesize sterols by inclusion of animal and fungal genes in the plant pathway [PDF]

open access: yes, 2020
Diatoms are ubiquitous microalgae that have developed remarkable metabolic plasticity and gene diversification. Here we report the first elucidation of the complete biosynthesis of sterols in the lineage.
, Angela   +7 more
core   +1 more source

Characterization of MK8(H2) from Rhodococcus sp. B7740 and Its Potential Antiglycation Capacity Measurements

open access: yesMarine Drugs, 2018
Menaquinone (MK) has an important role in human metabolism as an essential vitamin (VK2), which is mainly produced through the fermentation of microorganisms. MK8(H2) was identified to be the main menaquinone from Rhodococcus sp.
Yashu Chen   +7 more
doaj   +1 more source

Importance of Downstream Processing of Natural Astaxanthin for Pharmaceutical Application

open access: yesFrontiers in Chemical Engineering, 2021
Astaxanthin (ASX) is a xanthophyll pigment considered as a nutraceutical with high antioxidant activity. Several clinical trials have shown the multiple health benefits of this molecule; therefore, it has various pharmaceutical industry applications ...
Lucio Rodríguez-Sifuentes   +3 more
doaj   +1 more source

Recombinant expression and functional characterisation of regiospecific flavonoid glucosyltransferases from Hieracium pilosella L. [PDF]

open access: yes, 2009
Five glucosyltransferases were cloned by RT-PCR amplification using total RNA from Hieracium pilosella L. (Asteraceae) inflorescences as template. Expression was accomplished in Escherichia coli, and three of the HIS-tagged enzymes, UGT90A7, UGT95A1, and
Martens, S.   +4 more
core   +2 more sources

Isolation of phenolic compounds from Rheedia longifolia by high-speed countercurrent chromatography

open access: yesRodriguésia
Rheedia longifolia is a species of the Clusiaceae family, popularly known as bacupari. Pharmacological studies conducted by our group revealed that the raw methanolic extract of its leaves, along with its fractions, induces both inflammatory and ...
Ana Luiza Rangel Bérenger   +4 more
doaj   +1 more source

Target-Guided Isolation and Purification of Antioxidants from Urtica laetevirens Maxim. by HSCCC Combined with Online DPPH-HPLC Analysis

open access: yesMolecules, 2023
Urtica laetevirens Maxim. is used extensively in traditional Chinese medicine (TCM) for its potent antioxidative properties. In this study, three antioxidants were purified from U. laetevirens. using HSCCC guided by online DPPH-HPLC analysis.
Aijing Li   +9 more
doaj   +1 more source

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