Results 81 to 90 of about 1,243 (197)

Preparative isolation and purification of lutein from the microalga Chlorella vulgaris by high-speed counter-current chromatography

, 2001
High-speed counter-current chromatography (HSCCC) was applied to the isolation and purification of lutein from microalgae. Analytical HSCCC was used for the preliminary selection of a suitable solvent system composed of n-hexane-ethanol-water (4:3:1, v/v)
Fu-Quan Yang, Guo-Qing Xu, Xu, GQ, Feng Chen, Li, HB, Tian-You Zhang, Yang, FQ, Hua-Bin Li, Chen, F, Zhang, TY   +9 more
core   +1 more source

Preparative Purification of Anti-Proliferative Diarylheptanoids from Betula platyphylla by High-Speed Counter-Current Chromatography

Molecules, 2016
A simple and rapid method using high-speed counter-current chromatography (HSCCC), along with bioassay-guided fractionation based on the anti-proliferative activity against renal and colon cancer cells, has been developed for the preparative separation ...
Namki Cho, Hyun Woo Kim, Tae Bum Kim, Tanya T. Ransom, John A. Beutler, Sang Hyun Sung   +5 more
doaj   +1 more source

Curcuminoids: Composition, extraction, health benefits, delivery systems, and relation to COVID‐19 treatment

Food Safety and Health, Volume 2, Issue 1, Page 21-38, January 2024.
Curcuminoids exhibit anti‐inflammatory, anti‐microbial and anti‐viral (COVID) properties. The bioavailability of curcuminoids can be increased through various colloidal delivery systems. Abstract Curcuminoids, resevetrol, and quericitin are naturally occurring compounds in various foods that contain antiviral functionalities.
Shaik Jakeer Basha, Kamaljit Kaur, Prabhjot Kaur, Jagbir Rehal   +3 more
wiley   +1 more source

Preparative high-speed counter-current chromatography for purification of shikonin from the Chinese medicinal plant Lithospermum erythrorhizon

, 2004
The bioactive compound shikonin was successfully isolated and purified from the crude extract of the traditional Chinese medicinal plant Lithospermum erythrorhizon Sieb. et Zucc. by preparative high-speed counter-current chromatography (HSCCC).
Jiang, Y, Lu, HT, Chen, F
core   +1 more source

J. Chromatogr. A

, 2005
Purification of a.-amylase from the cultivation supernatant of recombinant Bacillus subtilis by high-speed counter-current chromatography (HSCCC) in polyethylene glycol (PEG) 4000-inorganic salt aqueous polymer two-phase systems was studied.
Gu, M, Ouyang, F, Deng, QY, Song, JG, Zhi, WB   +4 more
core   +1 more source

An Efficient Method for the Preparative Isolation and Purification of Flavonoid Glycosides and Caffeoylquinic Acid Derivatives from Leaves of Lonicera japonica Thunb. Using High Speed Counter-Current Chromatography (HSCCC) and Prep-HPLC Guided by DPPH-HPLC Experiments

, 2017
In this work, the n-butanol extract from leaves of Lonicera japonica Thunb. (L. japonica) was reacted with DPPH and subjected to a HPLC analysis for the guided screening antioxidants (DPPH-HPLC experiments). Then, nine antioxidants, including flavonoid
Heng Zhu, Feng Liu, Xiao Wang, Lei Wen, Jinhua Du, Shengbo Li, Daijie Wang, Ning Du   +7 more
core   +1 more source

New Metabolite With Inhibitory Activity Against α-Glucosidase and α-Amylase From Endophytic

Natural Product Communications, 2020
An efficient bioactive tracking separation strategy based on liquid-liquid extraction and high-speed counter-current chromatography (HSCCC) was developed and used to isolate bioactive natural products from the endophytic fungus Chaetomium globosum ...
Jianzhao Qi, Dacheng Wang, Xia Yin, Qiang Zhang, Jin-Ming Gao   +4 more
doaj   +1 more source

Preparative Isolation of Antimycobacterial Shoreic Acid from by High Speed Countercurrent Chromatography

Natural Product Communications, 2008
High speed countercurrent chromatography (HSCCC) was used to isolate the dammarane type triterpene shoreic acid from the dichloromethane extract of leaves of Cabralea canjerana , which showed activity against Mycobacterium tuberculosis .
Gilda G. Leitão, Lisandra F. Abreu, Fernanda N. Costa, Thiago B. Brum, Daniela Fernandes Ramos, Pedro Eduardo A. Silva, Maria Cristina S. Lourenço, Suzana G. Leitão   +7 more
doaj   +1 more source

Semi-Preparative Separation of 10 Caffeoylquinic Acid Derivatives Using High Speed Counter-Current Chromatogaphy Combined with Semi-Preparative HPLC from the Roots of Burdock (Arctium lappa L.)

Molecules, 2018
Burdock roots are healthy dietary supplements and a kind of famous traditional Chinese medicine, which contains large amounts of caffeoylquinic acid derivatives.
Zhenjia Zheng, Xiao Wang, Pengli Liu, Meng Li, Hongjing Dong, Xuguang Qiao   +5 more
doaj   +1 more source

Metody oczyszczania surowego ekstraktu polifenoli do analizy chromatograficznej

, 2021
The article describes the methods of purifying polyphenolic extracts both in preparations obtained from fresh fruit and vegetables and from processed products.
Ławińska, Katarzyna, Olejnik, Tomasz P., Niculescu, Mihaela-Doina, Lasoń-Rydel, Magdalena   +3 more
core