نتایج جستجو برای: cinnamic acids

تعداد نتایج: 266387  

Journal: :Molecules 2017
Jong H Kim Kathleen L Chan Luisa W Cheng

Disruption of fungal cell wall should be an effective intervention strategy. However, the cell wall-disrupting echinocandin drugs, such as caspofungin (CAS), cannot exterminate filamentous fungal pathogens during treatment. For potency improvement of cell wall-disrupting agents (CAS, octyl gallate (OG)), antifungal efficacy of thirty-three cinnamic acid derivatives was investigated against Sacc...

Journal: :Journal of separation science 2010
Vanda Pereira José S Câmara Juan Cacho José C Marques

This article proposes a simple and sensitive HPLC method with photo-diode array detection for the analysis of organic acids, monomeric polyphenols and furanic compounds in wine samples by direct injection. The chromatographic separation of 8 organic acids, 2 furans and 22 phenolic compounds was carried out with a buffered solution (pH 2.70) and acetonitrile as mobile phases and a difunctionally...

2005
M. K. Pandey D. P. Singh U. P. Singh

High performance liquid chromatographic (HPLC) analysis of mycelia of Sclerotium rolfsii grown in broth medium supplemented with garlic (Allium sativum) and onion (Allium cepa) was carried out to estimate qualitative and quantitative changes in phenolic acids. Several phenolic acids, such as gallic, chlorogenic, ferulic, o-coumaric and cinnamic acids were detected in varied amounts in mycelia g...

Journal: :International journal of systematic and evolutionary microbiology 2001
M Chamkha J L Garcia M Labat

The ability of Clostridium aerotolerans DSM 5434T, Clostridium celerecrescens DSM 5628T, Clostridium methoxybenzovorans DSM 12182T, Clostridium stercorarium ATCC 35414T, Clostridium subterminale DSM 2636, Clostridium termitidis DSM 5398T, Clostridium thermolacticum DSM 2910T, Clostridium thermopalmarium DSM 5974T and Clostridium xylanolyticum DSM 6555T to metabolize cinnamic acid and various de...

Journal: :Bioscience, biotechnology, and biochemistry 1996
S Tawata S Taira N Kobamoto J Zhu M Ishihara S Toyama

Cinnamic, p-coumaric and ferulic acids were isolated from pineapple stems (Ananas comosus var. Cayenne). Twenty-four kinds of esters were prepared from these acids, alcohols and the components of Alpinia. Isopropyl 4-hydroxycinnamate (11) and butyl 4-hydroxycinnamate (12) were found to have almost the same effectiveness in antifungal activity against Pythium sp. at 10 ppm as that of the commerc...

2013
Peter Proksch Charles Wisdom Eloy Rodriguez

A high performance liquid chromatographic method for analyzing phenolic acids on reverse phase C-18 is described. Twelve substituted benzoic and cinnamic acid derivatives as well as the parent acids were resolved in less than 25 min. Separation was achieved by using a step-wise gradient of three different solvent systems and by adding ammonium acetate for preventing intramolecular hydrogen bond...

Journal: :Journal of agricultural and food chemistry 2012
Hesham R El-Seedi Asmaa M A El-Said Shaden A M Khalifa Ulf Göransson Lars Bohlin Anna-Karin Borg-Karlson Rob Verpoorte

Hydroxycinnamic acids are the most widely distributed phenolic acids in plants. Broadly speaking, they can be defined as compounds derived from cinnamic acid. They are present at high concentrations in many food products, including fruits, vegetables, tea, cocoa, and wine. A diet rich in hydroxycinnamic acids is thought to be associated with beneficial health effects such as a reduced risk of c...

Journal: :The Journal of clinical investigation 1953
A SALTZMAN W T CARAWAY

Journal: :Anais da Academia Brasileira de Ciencias 2013
Angela M M P Valente Antonio G Ferreira Cristina Daolio Edson Rodrigues Filho Elisangela F Boffo Antonia Q L Souza Fernanda L S Sebastianes Itamar S Melo

The chemical reactions carried out by microorganisms have been used as a tool in modern chemistry. This paper reports the production of mycophenolic acid and a new phthalide by the endophytic fungus Penicillium crustosum obtained from coffee seeds. The fungus was cultivated in a liquid medium for a period of seven days and after that the culture medium was divided into four treatments: A, B, C ...

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