نتایج جستجو برای: cinnamomum tamala ionically unbound polyphenol oxidase inactivation kinetics purification thermostable

تعداد نتایج: 260231  

Journal: :Plant physiology 1997
P. Thipyapong J. C. Steffens

Tomato (Lycopersicon esculentum Mill.) polyphenol oxidases (PPOs) are encoded by a seven-member gene family that exhibits complex patterns of differential expression during growth and differentiation. Antisense down-regulation of constitutive and induced PPO expression results in hypersusceptibility to pathogens, suggesting a critical role for PPO-mediated phenolic oxidation in plant defense. H...

Bahaaldin Rashidzadeh, Roza Negahdari Shahriar Saeidian

Polyphenol oxidase from Black mulberrys was extracted and partially purified through (NH4)2SO4 precipitation, dialysis and ion exchange chromatography. P-cresol was the better substrate for cresolase activity with a Km (11.5 mM) and catechol for catecholase activity with Km (6.4 mM) at pH 5. Km for cresolase and catecholase activity of IsoPPOII at pH 6.5 were 12 and 8.5 and for IsoPPOIII at pH ...

Journal: :Frontiers in Chemistry 2021

Hnd, an FeFe hydrogenase from Desulfovibrio fructosovorans , is a tetrameric enzyme that can perform flavin-based electron bifurcation. It couples the oxidation of H 2 to both exergonic reduction NAD + and endergonic ferredoxin. We previously showed Hnd retains activity even when purified aerobically unlike other electron-bifurcating hydrogenases. In this study, we describe purification under O...

Journal: :Planta medica 2018
Mei Wang Vijayasankar Raman Jianping Zhao Bharathi Avula Yan-Hong Wang Philip L Wylie Ikhlas A Khan

Correct identification of the true bay leaf (Laurus nobilis) and its substitutes is important not only for the quality control of the products, but also for the safety of the consumers. L. nobilis is often substituted or confused with other species, such as Cinnamomum tamala, Pimenta racemosa, Syzygium polyanthum, and Umbellularia californica. In the present study, the potential of gas chromato...

Journal: :Journal of dietary supplements 2011
Catherine Ulbricht Erica Seamon Regina C Windsor Nicole Armbruester J Kathryn Bryan Dawn Costa Nicole Giese Joerg Gruenwald Ramon Iovin Richard Isaac Jill M Grimes Serrano Shaina Tanguay-Colucci Wendy Weissner Heeja Yoon Jie Zhang

An evidence-based systematic review of cinnamon (Cinnamomum spp.), including written and statistical analysis of scientific literature, expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing, by the Natural Standard Research Collaboration is discussed in this monograph.

Journal: :The Journal of biological chemistry 2006
Mineko Terao Mami Kurosaki Maria Monica Barzago Emanuela Varasano Andrea Boldetti Antonio Bastone Maddalena Fratelli Enrico Garattini

Aldehyde oxidases are molybdo-flavoenzymes structurally related to xanthine oxidoreductase. They catalyze the oxidation of aldehydes or N-heterocycles of physiological, pharmacological, and toxicological relevance. Rodents are characterized by four aldehyde oxidases as follows: AOX1 and aldehyde oxidase homologs 1-3 (AOH1, AOH2, and AOH3). Humans synthesize a single functional aldehyde oxidase,...

1985
T. N. Singh B. N. Upadhyay C. M. Tewari S. N. Tripathi

35 patients of Maturity onset diabetes mellitus having the complaints of polyurea polydypsia and polyphagia etc. have been selected. For the diagnosis of diabetes mellitus the fasting and 1(st) hour and 2(nd) hour post parandial blood sugar were estimated. Patients were classified into two groups. 20 patients were treated with powder of C. Tamal leaves in the dose of 2 TSF T. D. S. and 15 patie...

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