نتایج جستجو برای: after surface disinfestaion using ethanol 70
تعداد نتایج: 5183941 فیلتر نتایج به سال:
Delonix regia (common name: Flame tree) pods, an inexpensive lignocellulosic waste matrix, were successfully used to produce value-added bioethanol. Initially, the potentiality of D. pods as a biomass was assessed by Fourier-transform infrared spectroscopy (FTIR), which revealed presence several functional groups belonging cellulose, hemicellulose, and lignin, implying that could serve excellen...
Purpose: Survey of protective effects of Ghazzayaghi (Falcaria vulgaris) extract against ethanol-induced peptic ulcer in rat. Materials and Methods: Thirty-five young male rats (NMRI); 200-250gr weight divided in to five groups (7 Rats/group), the groups were treated with: distilled water 10kg in Control negative group, 50mg/kg ranitidine in control positives group, and three case groups were ...
as polysemy is encountered frequently in english as foreign language. fl learners’ ability to disambiguate polysemous verbs becomes critical to their comprehension in the target language. this thesis, accordingly, investigated how iranian efl learners achieved comprehension of english polysemous verbs by using three different types of cues: (1) elaborated context, (2) semantic frames, and (...
Vinegar fermentation was essentially a two-step process comprising the anaerobic conversion of sugars to ethanol (C2H5OH) and the aerobic oxidation of ethanol to acetic acid (CH3CO2H). It was to be found that vinegar could be successfully produced from the juice extracted from banana using yeast and Acetobacter. Banana fruit pulp was a suitable raw material for ethanol production by fermentatio...
The aim of this study was to examine the effects solvent-to-solid ratio, particle size, extraction time, and temperature on Jatropha oil using three organic solvents, i.e., n-hexane, petroleum ether, ethanol. Soxhlet method used, parameters were varied in following ranges: 24–80°C, time 2 8 h, ratio 4 : 1 7 1, size 0.5–0.8 mm. After obtaining optimal conditions, a large volume prepared, purifie...
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
The impact of extraction methodology and polarity of extraction solvents on the assay of phenolic compounds was investigated using parsley (Petroselinum crispum) flakes as a model substrate. This systematic study was undertaken to address substantial variations in the extraction procedures, solvents and conditions as described in the recent literature. Five different extraction procedures [shak...
High-pressure ultrasound-assisted extraction technology was applied to extract ferulic acid, senkyunolide I, senkyunolide H, senkyunolide A, ligustilide and levistolide A from Ligusticum chuanxiong rhizomes. Seven independent variables, including solvent type, pressure, particle size, liquid-to-solid ratio, extraction temperature, ultrasound power, and extraction time were examined. Response Su...
We study the selective catalytic oxidation of ethanol with air as a sustainable alternative route to acetaldehyde. The reaction is catalysed by molybdenum oxide supported on titania, in a flow reactor under ambient pressure. High selectivity to acetaldehyde (70%-89%, depending on the Mo loading) is obtained at 150 °C. Subsequently, we investigate the structure/performance relationship for vario...
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