نتایج جستجو برای: total phenol

تعداد نتایج: 813138  

2015
Nneka N. Uchegbu

This study was conducted to investigate the effect of the antioxidant activity of germinated African Yam Bean (AYB) on oxidative stress markers in alloxan induced diabetic rat. Rats were randomized into three groups; control, diabetic and germinated AYB – treated diabetic rats. The Total phenol and flavonoid content and DPPH radical scavenging activity before and after germination were investig...

Journal: :Journal of hazardous materials 1999
T F Guerin

Soil from a former creosoting plant containing phenols and polycyclic aromatic hydrocarbons, was remediated using an ex-situ landtreatment process. Total 16 USEPA priority PAH and total phenol were reduced from 290 mg/kg and 40 mg/kg to < 200 mg/kg and 2 mg/kg, respectively. The bioremediation process involved soil mixing, aeration, and slow release fertilizer addition. The indigenous populatio...

2016
Qihui Gu Qingping Wu Jumei Zhang Weipeng Guo Huiqing Wu Ming Sun

Phenol is a ubiquitous organic contaminant in drinking water. Biodegradation plays an important role in the elimination of phenol pollution in the environment, but the information about phenol removal by drinking water biofilters is still lacking. Herein, we study an acclimated bacterial community that can degrade over 80% of 300 mg/L phenol within 3 days. PCR detection of genotypes involved in...

2007
C. Díaz G. Ovejero J. L. Sotelo A. Rodríguez J. García

The catalytic wet air oxidation (CWAO) of phenol has been studied in trickled bed reactor using 2 wt.% platinum supported on carbon nanofibers (Pt/CNF) as catalyst. The catalyst was prepared by incipient wetness impregnation, and characterized by N2 adsorption, XRD and TEM. The operational variables studied and their range were: total air pressure, temperature, catalyst load, air and liquid flo...

Journal: :Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] 2016
Maryam Karimi Mehdi Hassanshahian

Phenol and phenolic compounds are environmental pollutants present in industrial wastewaters such as coal tar, oil refineries and petrochemical plants. Phenol removal from industrial effluents is extremely important for the protection of environment. Usually, phenol degradation is carried out by physicochemical methods that are costly and produce hazardous metabolites. Recently, phenol biodegra...

2017
Jie Miao Jaka Sunarso Chao Su Wei Zhou Shaobin Wang Zongping Shao

Perovskite-like oxides SrCo1-xTixO3-δ (SCTx, x = 0.1, 0.2, 0.4, 0.6) were used as heterogeneous catalysts to activate peroxymonosulfate (PMS) for phenol degradation under a wide pH range, exhibiting more rapid phenol oxidation than Co3O4 and TiO2. The SCT0.4/PMS system produced a high activity at increased initial pH, achieving optimized performance at pH ≥ 7 in terms of total organic carbon re...

Journal: :American journal of physiology. Renal physiology 2003
Li E Yang Patrick K K Leong Shaohua Ye Vito M Campese Alicia A McDonough

Renal injury-induced by phenol injection activates renal sympathetic afferent pathways, increases norepinephrine release from the posterior hypothalamus, activates renal efferent pathways, and provokes a rapid and persistent hypertension. This study aimed to determine whether phenol injury provoked a redistribution of proximal Na(+) transporters from internal stores to the apical cell surface m...

2014
SUMANA DUTTA

The leaves, barks, flowers, fruits and seeds of Calophyllum inophyllum are widely used in traditional practices. Here in the present study, we aimed to evaluate in vitro antioxidant potential of leaf aqueous and methanolic extracts of C. inophyllum in relation to total phenol and flavonoid contents. DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging and ferric (Fe) reducing power was ...

Journal: :Industrial health 1994
M Y Shamy R M el Gazzar M A el Sayed A M Attia

The present study was aimed for the effects of exposure to multiple organic solvent vapors in comparison with single exposure to phenol. It included 20 workers exposed to phenol alone and 32 workers of combined exposure to phenol, benzene, toluene and methyl ethyl ketone. A control group of 30 subjects was also included. The levels of transaminases, total proteins, prothrombin time, bleeding ti...

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