نتایج جستجو برای: pretreated fibers
تعداد نتایج: 84005 فیلتر نتایج به سال:
Crocidolite, one of the most carcinogenic forms of asbestos, is mutagenic in cultured mammalian cells when assayed using a system that can detect multilocus deletions. In the present study, we examined the effect of buthionine sulfoximine (BSO) on mutation frequency and the formation of 8-hydroxydeoxyguanosine (8-OHdG) in human-hamster hybrid (A(L)) cells induced by crocidolite fibers in an att...
Crocidolite, one of the most carcinogenic forms of asbestos, is mutagenic in cultured mammalian cells when assayed using a system that can detect multilocus deletions. In the present study, we examined the effect of buthionine sulfoximine (BSO) on mutation frequency and the formation of 8-hydroxydeoxyguanosine (8-OHdG) in human-hamster hybrid (AL) cells induced by crocidolite fibers in an attem...
BACKGROUND The recalcitrance of lignocellulosic biomass is a major limitation for its conversion into biofuels by enzymatic hydrolysis. The use of a pretreatment technology is an essential step to diminish biomass recalcitrance for bioethanol production. In this study, a two-step pretreatment using hydrothermal pretreatment at various temperatures and alkali fractionation was performed on eucal...
Abstract Naturally occurring compounds can be utilized as coloring and finishing agents in environmentally friendly textile products. Aronia melanocarpa (Aronia) fruits (berries) are rich bioactive such various form of polyphenolic showing antibacterial antioxidant, thus numerous studies have been actively conducted on berry extract (AE) recent years. However, most natural including pigments ex...
Carbon fibers are fabricated from different materials such as special polyacrylonitrile (PAN) fibers, cellulose fibers and pitch. But PAN fibers are recognized as the most widely used precursor for the present-day manufacture of carbon fibers. The process of fabrication carbon fibers from special PAN fibers is composed of two steps including oxidative stabilization at low temperature and carbon...
Poly(ethylene terephthalate) hydrolase (PETase) from Ideonella sakaiensis 201-F6 was expressed and purified Escherichia coli to hydrolyze poly(ethylene (PET) fibers waste for its monomers recycling. Hydrolysis carried out at pH 8 30 °C found be the optimal condition based on measured monomer mono(2-hydroxyethyl) terephthalate (MHET) terephthalic acid (TPA) concentrations after 24 h reaction. Th...
In order to partially mimic the efficient lignocellulose pretreatment process performed naturally in gut system of Pachnoda marginata larvae, two wheat straw pretreatments were evaluated: a mechanical via cutting into different sizes and an alkaline with calcium hydroxide. After pretreatment, enrichment cultures on at pH inoculated kept mesophilic conditions over 45 days. The methanogenic commu...
Abstract Lignocellulose based nanomaterials are emerging green biosolids commonly obtained from wood pulp. Alternative feedstocks, such as unavoidable food waste, interesting resources for nano/microfibers. This research reports the production and characterization of microfibrillated lignocellulose (MFLC) cassava peel (CP) almond hull (AH) via acid-free microwave-assisted hydrothermal treatment...
BACKGROUND Delignification pretreatments of biomass and methods to assess their efficacy are crucial for biomass-to-biofuels research and technology. Here, we applied confocal and fluorescence lifetime imaging microscopy (FLIM) using one- and two-photon excitation to map the lignin distribution within bagasse fibers pretreated with acid and alkali. The evaluated spectra and decay times are corr...
Pretreatment is a necessary step to converting lignocellulosic biomass from its native form into more accessible for the value-added utilization of main components. Herein, we developed one-step acid bleachable pretreatment method using recyclable hydrotrope (p-toluenesulfonic acid, p-TsOH) and chlorate achieve fibers bleaching lignin extraction simultaneously. Under condition p-TsOH concentrat...
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