نتایج جستجو برای: lignocellulosic resource
تعداد نتایج: 216482 فیلتر نتایج به سال:
Lignocellulosic biomass is a promising resource of renewable energy. Its transformation to ethanol requires efficient pretreatment leading complex liquid mixtures made hundreds oxygenated analytes. A large part the released compounds belong carbohydrates family. To overcome complexity such samples, comprehensive on-line two-dimensional reversed-phase chromatography hyphenated high-resolution ma...
For lignocellulosic bioenergy to become a viable alternative to traditional energy production methods, rapid increases in conversion efficiency and biomass yield must be achieved. Increased productivity in bioenergy production can be achieved through concomitant gains in processing efficiency as well as genetic improvement of feedstock that have the potential for bioenergy production at an indu...
The conversion of lignocellulosic biomass into fine chemicals and polymers has been gaining attention recently. Regenerated lignocellulose beads (RLBs) were prepared by an emulsification/precipitation technique, using wheat straw as a raw material and [Bmim]Cl as a solvent. The morphology and properties of the obtained beads were characterized. The RLBs were perfectly spherical, with a porous m...
Lignocellulosic biomass has been recognized as a promising feedstock for the fermentative production of biofuel. However, the pretreatment of lignocellulose generates a number of by-products, such as furfural, 5-hydroxylmethyl furfural (5-HMF), vanillin, vanillic acids and trans-p-coumaric acid (TPCA), which are known to inhibit microbial growth. This research explores the ability of Rhodococcu...
Room temperature ionic liquids as emerging solvents for the pretreatment of lignocellulosic biomass.
Room temperature ionic liquids (RTILs) are emerging as attractive and green solvents for lignocellulosic biomass pretreatment. The unique solvating properties of RTILs foster the disruption of the 3D network structure of lignin, cellulose, and hemicellulose, which allows high yields of fermentable sugars to be produced in subsequent enzymatic hydrolysis. In the current review, we summarize the ...
BACKGROUND Production of second-generation bioethanol and other bulk chemicals by yeast fermentation requires cells that tolerate inhibitory lignocellulosic compounds at low pH. Saccharomyces cerevisiae displays high plasticity with regard to inhibitor tolerance, and adaptation of cell populations to process conditions is essential for reaching efficient and robust fermentations. RESULTS In t...
the objective of this work focuses on the use of a new natural lignocellulosic material based on palm stems for adsorbing of hexavalent chromium (cr(vi)) in water. the palm stems powder (psp) was characterized using different techniques. the influencing factors on the adsorption of cr(vi) ions was investigated such as ph. the results show that the increase of the temperature and the initial ads...
This review is a short synopsis of some of the latest breakthroughs in the areas of lignocellulosic conversion to fuels and utilization of oils for biodiesel. Although four lignocellulosic ethanol factories have opened in the USA and hundreds of biodiesel installations are active worldwide, technological improvements are being discovered that will rapidly evolve the biofuels industry into a new...
Lignocellulose is a renewable and sustainable resource. It includes terrestrial plants part of nonedible waste streams current industries. This raw material an alternative carbon source for fossils. Lignin from lignocellulosic biomass under-valorized. aromatic biomacromolecule that used as fuel offers many striking properties such high thermal stability, biodegradability, UV-blocking, antioxida...
Abstract The paper is a review on the extraction processes of cellulosic fibers from flax and hemp. two lignocellulosic crops have long history use by humans for bast among other purposes. utility declined over time with industrial advances changes to economy, but late, an increase focus environmental impact sustainability, there renewed interest in these resources. biomass-based resource requi...
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