نتایج جستجو برای: cellulosic fibers
تعداد نتایج: 73082 فیلتر نتایج به سال:
BACKGROUND Mononuclear cells from patients dialysed with cellulosic membranes undergo rapid apoptosis in vitro. The aim of the present study was to determine whether the apoptosis associated with cellulosic haemodialysis membrane shares similar features with the spontaneous apoptosis described in normal monocytes. Thus, we determined whether apoptosis is dependent on caspase-3 activity and is i...
Ethanol/water organosolv pulping was used to obtain sugarcane bagasse pulp that was bleached with sodium chlorite. This bleached pulp was used to obtain cellulosic films that were further evaluated by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). A good film formation was observed when temperature of 74 degrees C and ba...
BACKGROUND Cellulose consisting of arrays of linear beta-1,4 linked glucans, is the most abundant carbon-containing polymer present in biomass. Recalcitrance of crystalline cellulose towards enzymatic degradation is widely reported and is the result of intra- and inter-molecular hydrogen bonds within and among the linear glucans. Cellobiohydrolases are enzymes that attack crystalline cellulose....
ong before the advent of systematic L physical sciences and the growth of the chemical industry, as long as 5000 years ago in India, dyeing methods were being used for the application of the water insoluble pigment, indigo, to natural fibers. In the early nineteenth century, between the first cotton gin and the Civil War, the value of natural indigo produced in South Carolina exceeded that of r...
Production of Bio-Ethanol from the Organic Fraction of Municipal Solid Waste and Refuse-Derived Fuel
The organic fraction of municipal solid waste (OFMSW) and refuse-derived fuel (RDF) mainly consisting paper/cardboard can be used as feedstock for the production cellulosic ethanol. In this paper, an efficient technology is described to convert into process involves separation OF from other components in stream. An acid pretreatment liberate fibers accessibility enzyme Cellic CTEC3 loading 3.75...
BACKGROUND In order to generate biofuels, insoluble cellulosic substrates are pretreated and subsequently hydrolyzed with cellulases. One way to pretreat cellulose in a safe and environmentally friendly manner is to apply, under mild conditions, non-hydrolyzing proteins such as swollenin - naturally produced in low yields by the fungus Trichoderma reesei. To yield sufficient swollenin for indus...
Plant fibers are sustainable sources of materials for many industries, and can be obtained from a variety plants. Cellulose is the main constituent plant-based fibers, its properties give characteristics obtained. Detailed characterization cellulosic often performed after lengthy extraction procedures, while fast screening might bring benefit quick qualitative assessment unprocessed stems. The ...
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