نتایج جستجو برای: cellulose biopolymer
تعداد نتایج: 71119 فیلتر نتایج به سال:
In the flame retardancy of biopolymer matrix and natural fibre reinforcement containing green composites, researchers face multiple challenges, such as low thermal stability, candlewick effect fibres compatibility issues. Cellulosic have been shown to char-promoting properties advantageously interact with intumescent systems. this work, melamine-polyphosphate was combined neat or flame-retardan...
Cellulose synthase and other members of the family 2 glycosyltransferases are ubiquitous in all kingdoms of life. To date, no attempt has been made to construct a phylogeny that positions cellulose synthases in relation to other members of this family or to elucidate relationships within the cellulose synthase group. In this study, a sequence from the unicellular, marine cyanobacterium Synechoc...
Structural characteristics of microbial cellulose synthesized by two different methods have been compared using FT-IR and X-ray diffraction techniques. Cellulose synthesized by Acetobacter xylinum NQ-5 strain from agitated culture conditions is characterized by a lower Ia mass fraction than cellulose that was produced statically. Such a decrease was in good correlation with smaller crystallite ...
Bio-based and biodegradable polymers are essential for a sustainable society. Cellulose is the most abundant biopolymer on earth; however, derivatization necessary its processing, which slows down biodegradability dramatically, e.g. used cigarette filters made from cellulose acetate barely biodegradable. We developed first reversible modification of cellulose, allows processing guarantees full ...
Lignocellulose is the most abundant biopolymer on earth. The hydrolysis of lignocellulose to fermentable sugars a prerequisite for its successful use as substrate large-scale production value-added industrial products. Enzymatic carried out by cellulases, hemicellulases, and ligninases in synergy or individually. review describes enzymatic cellulose, hemicellulose, lignin. Information solid-pha...
novel citric acid modified starch-carboxy methyl cellulose (cmc) -montmorillonite (mmt) bionanocomposite films were prepared by casting method and the effect of mmt on the structural and physical properties of the starch-cmc biocomposites was studied. x-ray diffraction test showed thatstrong polar interactions between the hydroxyl groups present in the starch and cmc chains and in the silicate ...
Substrate binding is typically one of the rate-limiting steps preceding enzyme catalytic action during homogeneous reactions. However, interfacial-based enzyme catalysis on insoluble crystalline substrates, like cellulose, has additional bottlenecks of individual biopolymer chain decrystallization from the substrate interface followed by its processive depolymerization to soluble sugars. This a...
Cellulose, a linear polysaccharide, is the most common and renewable biopolymer in nature. Because this natural polymer cannot be melted (heated) or dissolved (in typical organic solvents), making complicated structures from it necessitates specialized material processing design. In review, we looked at literature to see how cellulose various shapes forms has been utilized conjunction with micr...
Cellulose is the most abounding biopolymer in the world and there is a great interest in using this material as a substrate for various applications and it is the most important renewable resource for bioconversion. Therefore, it is necessary to screen the cellulolytic bioorganisms. In this context, actinobacteria are one of the most efficient prokaryotes, economically and biotechnologically, f...
The constituents of large, multisubunit protein complexes dictate their functions in cells, but determining their precise molecular makeup in vivo is challenging. One example of such a complex is the cellulose synthesis complex (CSC), which in plants synthesizes cellulose, the most abundant biopolymer on Earth. In growing plant cells, CSCs exist in the plasma membrane as six-lobed rosettes that...
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