نتایج جستجو برای: phenol content

تعداد نتایج: 428487  

2017
Zeki Candan Stephen M. Shaler Juan Jacobo Paredes Heller Russell Edgar

The objective of this study was to investigate the effects of hot water extraction process on the dimensional stability of oriented strand composites. Aspen wood strands were extracted using various severity factor levels. Phenol formaldehyde and polymethylene diphenyl diisocyanate resins were used for production of the oriented strandboard panels. Six panel groups were produced from the extrac...

Journal: :Chemosphere 2010
Mario C N Saparrat Miguel Jurado Rosario Díaz Inmaculada Garcia Romera María Jesús Martínez

The objective of this work was to evaluate the ability of the white rot basidiomycete Coriolopsis rigida to detoxify the water soluble fraction from "alpeorujo" (WSFA), a solid by-product produced by the olive oil extraction industry and characterized by a high concentration of phenols which limits its use as fertilizer and/or amendment. C. rigida reduced the phenol content in the liquid media ...

Journal: :Indian journal of experimental biology 2014
Mazhari Bi Bi Zainab D N Madhusudhan H Raghavendra Syed G Dastager Agsar Dayanand

Most of the phenol compounds are toxic and have been considered as hazardous pollutants. Several physicochemical and biological methods are available to detect and monitor the phenol pollutants in water and soil. In the present study, phenol constituents of winery, paper and plastic industrial effluents were successfully detected employing tyrosinase-gold nanoparticles bioconjugate. The synthes...

2016
Nadine Tachon Bouchra Benjelloun-Mlayah Michel Delmas

Organosolv wheat straw lignin extracted using the CIMV process is a linear, low molecular weight, and natural phenolic oligomer. In this study, organosolv wheat straw lignin was tested as a substitute for 50% to 70% of the phenol in a phenol-formaldehyde-resol resin. The lignin was used without any chemical modification in a one-step synthesis reaction. Parameters such as reaction time and form...

2009
Maria Grazia Alaimo Daniela Vizzì

We examined adaptations in histochemical composition and chemical element content in pine needles caused by pollution stress. Phenol content and trace element concentrations were measured in mature needles of Pinus halepensis Mill. and Pinus pinea L. from an urban ecosystem (the city of Palermo, Italy) and compared with samples collected in periurban sites where air pollution is presumably lowe...

Alireza Badiei, Ghodsi Mohammadi Ziarani Milad Jourshabani Negar Lashgari

Herein, we prepared a V/SBA-16 catalyst using vanadyl acetylacetonate as a precursor and SBA-16 nanoporous silica as a support via an immobilization technique. The ordered mesoporous structure of catalyst was determined by X-ray diffraction  and transmission electron microscopy techniques , and the catalyst was evaluated in the benzene hydroxylation to phenol with hydrogen peroxide (H2O2) as a ...

Journal: :Neurochemistry international 2013
Megan L Steele John Truong Suresh Govindaraghavan Lezanne Ooi Nikolaus J Sucher Gerald Münch

Age is the leading risk factor for many of the most prevalent and devastating diseases including neurodegenerative diseases. A number of herbal medicines have been used for centuries to ameliorate the deleterious effects of ageing-related diseases and increase longevity. Oxidative stress is believed to play a role in normal ageing as well as in neurodegenerative processes. Since many of the con...

Arsenic contamination in soils often leads to groundwater contamination and arsenic toxicity in plants, humans and animals. Plant hormones play a quantitative and qualitative role in the coordination of growth and yield in plants. In this research the effects of gibberellin and sodium arsenate in different genotypes of rice were studied. The work has been conducted as a factorial experiment bas...

Journal: :Indian Journal of Agricultural Sciences 2021

Different stages of phenol colour reaction showed induction occur post anthesis, i.e. stage 2. In the later stages, 3 (dough) and 4 (harvest maturity) seeds similar with less intensity. Phenol content estimated at different growth maturity highest fertilization stage, 2 it decreased in third fourth. Inter-panicle was not significantly whereas intra-panicle difference observed.

Amiri, Ala , Firoozeh, Farzaneh, Salahshoorifar, Iman, Zibaei, Mohammad,

Background: The most important researches in molecular and genetic engineering fields are the finding of optimal methods for extraction of the genomic content of microorganisms and cells using them, can achieve the most amount and purity with the least time and cost. There are several methods for the extraction of bacterial DNA and the use of magnetic nanoparticles is one of the novel methods o...

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