نتایج جستجو برای: vanillic acid
تعداد نتایج: 747468 فیلتر نتایج به سال:
To better understand the characteristics of biomass burning in the northern Indo-Gangetic Plain (IGP), total suspended particles were collected in a rural site, Lumbini, Nepal, during April 2013 to March 2014 and analyzed for the biomass burning tracers (i.e., levoglucosan, mannosan, vanillic acid). The annual average concentration of levoglucosan was 734± 1043 ng m−3 with the maximum seasonal ...
We investigated the influence of potential laccase inducers with environmental relevance on extracellular laccase activity and removal of the xenoestrogen technical nonylphenol (tNP) by the aquatic hyphomycete Clavariopsis aquatica. Concomitantly, we identified two putative laccase gene fragments (Icc1 and Icc2) and have followed their expression during removal of tNP under different conditions...
Micellar Enhanced Ultrafiltration (MEUF) of different phenolic derivatives including para-coumaric acid, vanillic acid, and tyrosol, in aqueous solutions has been studied. The MEUF experiments were conducted using an anionic surfactant, namely, Sodium Dodecyl Sulfate (SDS). Two polyethersulfone membranes with different molecular weight cut-off (20 kDa and 50 kDa) were used. Experiments were con...
Lignin depolymerization through peroxide oxidation produces dicarboxylic acids (DCA), especially C4-DCA, like succinic acid. In this work, the effect of methoxy substituents on C4-DCA production using lignin model compounds (p-hydroxybenzoic acid, vanillic and syringic acid) hardwood softwood samples was studied. It concluded that increased reactivity toward oxidation. The acid yield higher for...
The relationships between rooting potential with endogenous phenolic compounds, nitrogen and soluble carbohydrates of cuttings for five olive cultivars (‘Rowghani’, ‘Dusti’, ‘Tokhmekabki’, ‘Konservalia’ and ‘Amigdalolia’) were investigated. Extracts of the leaves and the base of the cuttings were used for analysis of biochemical compounds. Results showed that there were significant differences ...
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