نتایج جستجو برای: gallates

تعداد نتایج: 121  

Journal: :Chemical & pharmaceutical bulletin 2001
L Q Wang M R Meselhy Y Li N Nakamura B S Min G W Qin M Hattori

A human intestinal bacterium, Eubacterium (E.) sp. strain SDG-2, was tested for its ability to metabolize various (3R)- and (3S)-flavan-3-ols and their 3-O-gallates. This bacterium cleaved the C-ring of (3R)- and (3S)-flavan-3-ols to give 1,3-diphenylpropan-2-ol derivatives, but not their 3-O-gallates. Furthermore, E. sp. strain SDG-2 had the ability of p-dehydroxylation in the B-ring of (3R)-f...

Journal: :Memorias do Instituto Oswaldo Cruz 2008
Jadel Müller Kratz Carla Regina Andrighetti-Fröhner Deise Juliana Kolling Paulo César Leal Cláudio César Cirne-Santos Rosendo Augusto Yunes Ricardo José Nunes Edward Trybala Tomas Bergström Izabel C P P Frugulhetti Célia Regina Monte Barardi Cláudia Maria Oliveira Simões

The synthetic n-alkyl esters of gallic acid (GA), also known as gallates, especially propyl, octyl and dodecyl gallates, are widely employed as antioxidants by food and pharmaceutical industries. The inhibitory effects of GA and 15 gallates on Herpes Simplex Virus type 1 (HSV-1) and Human Immunodeficiency Virus (HIV-1) replication were investigated here. After a preliminary screening of these c...

Journal: :ACS applied materials & interfaces 2015
Oriol Cusola Cristina Valls Teresa Vidal Tzanko Tzanov M Blanca Roncero

In this work, we studied the influence of the alkyl chain length in enzymatically oxidized gallates on the development of hydrophobicity on paper-based materials, and further correlated the obtained effect to the redox mechanism of the enzymatic treatment. Laccase (Lac) enzyme was used to oxidize various members of the gallate homologous series in the presence or not of lignosulfonates (SL) to ...

Journal: :physical chemistry research 0
nosrat madadi mahani payam noor university

first principles calculations were carried out for investigation the novel 7-hydroxycoumarinyl gallates derivatives in gas and liquid phases using density functional theory (dft) method. computational chemistry simulations were carried out to compare calculated quantum chemical parameters for gallates derivatives. all calculations were performed using dmol3 code which is based on dft. the doubl...

Journal: :Agricultural and Biological Chemistry 1991

2005
Hirofumi Shibata Kyoko Kondo Ryo Katsuyama Kazuyoshi Kawazoe Yoichi Sato Kotaro Murakami Yoshihisa Takaishi Naokatu Arakaki Tomihiko Higuti

Alkyl Gallates, Intensifiers of -Lactam Susceptibility in Methicillin-Resistant Staphylococcus aureus Hirofumi Shibata, Kyoko Kondo, Ryo Katsuyama, Kazuyoshi Kawazoe, Yoichi Sato, Kotaro Murakami, Yoshihisa Takaishi, Naokatu Arakaki, and Tomihiko Higuti* Department of Molecular Cell Biology and Medicine, Department of Natural Medicines, and Department of Human Genetics and Public Health, Instit...

Journal: :Letters in applied microbiology 2010
J H Kim B C Campbell N Mahoney K L Chan R J Molyneux C L Xiao

AIM To overcome fludioxonil resistance of Penicillium expansum, a mycotoxigenic fungal pathogen causing postharvest decay in apple, by using natural phenolic chemosensitizing agents. METHODS AND RESULTS Fludioxonil-resistant mutants of P. expansum were co-treated with different oxidising and natural phenolic agents. Resistance was overcome by natural phenolic chemosensitizing agents targeting...

Journal: :The Open Bioactive Compounds Journal 2010

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