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6 Newest Publications about the topic flash chromatography


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Regioselective deprotection of monosaccharide bearing thiocyanomethyl group at the anomeric position monitored by reversed‐phase HPLC method

11-Feb-2016 | Qais Abualassal, Khaldun M. Al Azzam, Jamal A. Jilani, Biomedical Chromatography, 2016

Abstract In the current work, investigation and development of a chemo‐enzymatic approach for the synthesis of neo‐glycoproteins have been studied. This strategy is based on the regioselective enzymatic hydrolysis of peracetylated monosaccharide, functionalized in the anomeric position (C1) as ...


Simultaneous Extraction of Phosphatidylcholine and Phosphatidylethanolamine from Soybean Lecithin

19-Mar-2015 | Johnson V. John, Huiju Park, Hye Ri Lee, Hongsuk Suh, Il Kim, European Journal of Lipid Science and Technology, 2015

A high composition of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) was simultaneously extracted from soybean lecithin by using a mixed solvent consisting of ethanol and chloroform. The addition of chloroform in ethanol improved the total extraction yield to give high composition ...


Isolation of Thuridillins D–F, Diterpene Metabolites from the Australian Sacoglossan Mollusk Thuridilla splendens; Relative Configuration of the Epoxylactone Ring

18-Sep-2012 | Michael J. Somerville; Peter L. Katavic; Lynette K. Lambert; Gregory K. Pierens; Joanne T. Blanchfield; Guido Cimino ..., Journal of Natural Products, 2012

This first chemical study of the sacoglossan mollusk Thuridilla splendens from Mooloolaba, South East Queensland, has resulted in the isolation of three new metabolites, thuridillins D–F (1–3), and one known metabolite, thuridillin A (4). Thuridillin D (1) was isolated by conventional flash ...


Dicaffeoylquinic acids in Yerba mate (Ilex paraguariensis St. Hilaire) inhibit NF‐κB nucleus translocation in macrophages and induce apoptosis by activating caspases‐8 and ‐3 in human colon cancer cells

08-Jun-2011 | Puangpraphant, Sirima; Berhow, Mark A.; Vermillion, Karl; Potts, Greg; Gonzalez de Mejia, Elvira, Molecular Nutrition & Food Research, 2011

Abstract Scope: The biological functions of caffeoylquinic acid (CQA) derivatives from various plant sources have been partially elucidated. The objectives were to isolate and purify diCQAs from Yerba mate tea leaves and assess their anti‐inflammatory and anti‐cancer capabilities in vitro and ...


Effect of isolated fractions of Harpagophytum procumbens D.C. (devil's claw) on COX‐1, COX‐2 activity and nitric oxide production on whole‐blood assay

01-Sep-2010 | Anauate, Maria Cecilia; Torres, Luce Maria; de Mello, Suzana Beatriz Veríssimo, Phytotherapy Research, 2010

The present study evaluates the effect of isolated fractions of Harpagophytum procumbens (devil's claw) on cyclooxygenase (COX‐1 and COX‐2) activities and NO production using a whole blood assay. The activity of COX‐1 was quantified as platelet thromboxane B2 production in blood clotting and ...


Oligomycins A and C, major secondary metabolites isolated from the newly isolated strain Streptomyces diastaticus

24-Mar-2010 | P. W. Yang, M. G. Li, J. Y. Zhao, M. Z. Zhu, H. Shang, J. R. Li, X. L. Cui, R. Huang, M. L. Wen, Folia Microbiologica, 2010

During the screening program for fungicides, one actinomycete strain ECO 00047 was isolated with the potential activity against fungus. According to the morphology and analysis of the nucleotide sequence of the 16S rRNA gene (1500 bp) this isolate was identified as Streptomyces diastaticus. The ...


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