Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53389#.VMBtrSzQrzE Author(s)    Yi-Lin Chen , Jih-Min Sung , Sheng-Dun Lin *   Affiliation(s) Department of Food Science and Technology, Hungkuang University, Taichung, Taiwan . ABSTRACT The extraction yields, active compounds and antioxidant properties of 50%-aqueous-ethanolic extracts of freeze-dried Echinacea purpurea flower with multi-steps and multi-batches extraction methods were assessed. In multi-steps extraction, the extraction yields of 1st, 2nd, and 3rd extracts were 21.52%, 9.33%, and 2.90%, and their total phenols contents were 182.08, 176.33, and 177.08 mg CAE/g, respectively, with cichoric acid (62.07 - 66.57 mg/g) being the main phenolic compound. No differences in the contents of individual and total caffeic acids derivates existed among 1st, 2nd, and 3rd extracts. The dodeca-2E, 4E, 8Z, 10(E/Z)-tetraenoic acid isobutylamide (alk...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53115#.VLXKmcnQrzE Author(s)   Richa Panwar 1* , Asvene Kumar Sharma 1 , Dharm Dutt 2 , Vikas Pruthi 1   Affiliation(s) 1 Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, India . 2 Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, India . ABSTRACT Parthenium hysterophorus is a globally recognized invasive alien weed that prominently colonizes grazing areas and cultivated lands causing adverse effect on crop production. Major allelochemicals released from parthenium include sesqueterpene lactones and phenolic acids. Among these the presence of caffeic, vanillic and ferulic acids is of industrial significance as they possess potent free radical scavenging and anticancer activities. This study reports for the first time, high total phenolic acid content (20.82 ± 0.82 mg GAE/g dry sample) in parth...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53023#.VLR-j8nQrzE Author(s)   Abdellatif El Maghraoui * , Abdelaziz Zerouale , Mustapha Ijjaali Affiliation(s) Laboratory of Chemistry of Condensed Mater, Faculty of Sciences and Technology, Sidi Mohammed Ben Abdellah University, Fez, Morocco . ABSTRACT The iron compounds in the oxidation state (VI) have the specific advantage of being powerful oxidants and bactericides. This feature explains their particular interest in the treatment of water. The aim of this work is to prepare Na 2 FeO 4 stable at ambient in order to optimize the key parameters influencing the performance of the oxidation of iron (II) to iron (VI), as well as to monitor its degradation over time. The synthesis of this phase has been carried out by using the dry reaction Na 2 O 2 with Fe 2 O 3 with a temperature of 700°C for a reaction time of 13 hours with a Na/Fe ratio of 4 to mak...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52874#.VKtJp8nQrzE Author(s)    Rosivaldo S. Borges 1* , Tainá G. Barros 1 , Glaécia A. N. Pereira 1 , João Batista Jr. 1 , Raimundo F. G. P. Beleza Filho 1 , Andrex A. S. Veiga 1 , Moisés Hamoy 2 , Vanessa J. Mello 2 , Albérico B. F. da Silva 3 , Carlos A. L. Barros 1 Affiliation(s) 1 Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil . 1 Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil . 2 Laboratório de Farmacologia e Toxicologia de Produtos Naturais, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil . 3 Institut...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52726#.VKIClcCAM4 Author(s)   Hironori Tsuchiya 1* , Maki Mizogami 2 Affiliation(s) 1 Department of Dental Basic Education, School of Dentistry, Asahi University, Mizuho, Japan . 2 Department of Anesthesiology and Reanimatology, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan . ABSTRACT Objective: While substituted phenols have a variety of pharmacological activity, the mechanism underlying their anesthetic effects remains uncertain especially about the critical target. We characterized the lipid membrane-interacting properties of different phenols by comparing with general anesthetic propofol and local an...