Results 271 to 280 of about 1,038,706 (318)
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Journal of Agricultural and Food Chemistry, 2000
The antioxidant activity of pomegranate juices was evaluated by four different methods (ABTS, DPPH, DMPD, and FRAP) and compared to those of red wine and a green tea infusion.
M. Gil +4 more
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The antioxidant activity of pomegranate juices was evaluated by four different methods (ABTS, DPPH, DMPD, and FRAP) and compared to those of red wine and a green tea infusion.
M. Gil +4 more
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Microbial Degradation of Phenol and Phenolic Compounds
2021Phenol and phenolic compounds play an essential role in various modern-day industries. However, due to the toxic and recalcitrant nature of phenolic compounds, these compounds have a detrimental effect on the environment and aquatic life. In the recent past, different physicochemical methods have been employed by various researchers for phenol ...
Milan Malhotra +3 more
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Catalytic ethoxylation of phenol and phenol derivatives
Reaction Kinetics and Catalysis Letters, 1980The kinetics of catalytic mono- and polyethoxylation of phenol, p-cumyl-phenol and p-isooctylphenol have been studied in the presence of strongly basic anion exchanger Wofatit SBW in hydroxy form. The influence of substituents on the rate has been investigated and the mechanism of the reaction is discussed.
S. V. Kotov, K. M. Markov, R. S. Boeva
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BIODEGRADATION OF PHENOLS BY MICROALGAE
Biotechnology Letters, 2002Two green microalgae, Ankistrodesmus braunii and Scenedesmus quadricauda, degraded phenols (each tested at 400 mg ml−1) selected from olive-oil mill wastewaters, within 5 days, with a removal greater than 70%. Green algae may, therefore, represent an alternative to other biological treatment used for the biodegradation of phenol-containing wastewaters.
POLLIO, ANTONINO +3 more
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Kinetics of Ozonation of Phenol and Substituted Phenols
Industrial & Engineering Chemistry Research, 2019In the treatment of wastewaters contaminated with phenol and substituted phenols, an intermediate chemical step of partial oxidation is often employed to facilitate the ensuing biodegradation process. Ozonation is a candidate technique for partial oxidation of phenolics.
R.N. Patil +4 more
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The metabolism of phenol and substituted phenols in zebra fish
Xenobiotica, 19871. The metabolism of five phenols in zebra fish was studied after uptake from the medium. The results showed no qualitative differences to other Cyprinid fish species, only the oxidation rate seemed to be lower. 2. Phenyl glucuronide, phenyl sulphate, and quinol sulphate were identified as metabolites of phenol. 3.
T. Kasokat, Roland Nagel, Klaus Urich
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PHENOL–DIENONE REARRANGEMENT IN THE REACTIONS OF PHENOLS [PDF]
Russian Chemical Reviews, 1963 CONTENTS I. Introduction 75 II. Effect of structure of phenol on ease of formation of dienone compounds 75 III. Halogenation of phenol. Tribromophenol bromide 78 IV. Halogenation of alkylphenols 79 V. Reactivity of quinohalide compounds. Problem of methylenequinone 82 VI. Nitration of phenols 84 VII. Alkylation of phenols 85 VIII. Formation of dienones
A A Volod'kin, V V Ershov, G N Bogdanov
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Phenolic Compounds from Nuts: Extraction, Chemical Profiles and Bioactivity.
Journal of Agricultural and Food Chemistry, 2020Nuts contain a vast array of phenolic compounds having important biological properties. They include substances allocated into the five major groups named phenolic acids, flavonoids, tannins, phenolic lignans and stilbene-derivatives.
R. Bodoira, D. Maestri
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Bacterial Biodegradation of Phenolics and Derivatives of Phenolics
2020It is known that the nature is widely contaminated by the aromatic compounds. Various industries, such as petroleum refineries, resin manufacturing, paper and pulp, fungicide, pesticides, chemical fertilizers, and leather, utilize water in various processes, such as steam generation for cooling, distillation processes, hydrotreating, and cleaning ...
Nikhil Bhatt, Pooja Hirpara
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Adsorption of phenol and substituted phenols by iron oxides
Environmental Toxicology and Chemistry, 1991Abstract The ability of Fe oxides to adsorb phenol and various substituted phenols from dilute aqueous solution and from the vapor state was investigated, utilizing Fourier transform infrared (FTIR) spectroscopy to evaluate the type of surface complex formed.
King-Hsi Kung, Murray B. McBride
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