Carbon-carbon bonds by hydrolytic enzymes. Branneby Cecilia,Carlqvist Peter,Magnusson Anders,Hult Karl,Brinck Tore,Berglund Per. Journal of the American Chemical Society . 2003Branneby,C., Carlqvist,P., Magnusso
The synthesis of CNCs typically requires rather harsh conditions, needed for the formation of new carbon-carbon bonds. Common precursors are small molecules undergoing decomposition, polymerization, and carbonization under hydrolytic, solvothermal, or pyrolytic conditions. Microwave irradiation of precursor sol...
AF-666. There was decrease in peaks at the region 1200–1400 cm−1 in rubber pieces treated with bacterial culture as compared to control, indicating the breakdown of important functional groups like CC, carbonyl, methyl and ester bonds. A peak at 3034 cm−1, which was present in ...
While the observed changes in thermal stability after hydrolytic degradation can be explained by the cleavage of ester bonds in the PLA backbone, leading to shorter polymer chains with lower molecular weight. This decrease in molecular weight results in a reduction in thermal stability as shorter ...
Taken together, lignin by itself is a complex heterogenous polymer where phenyl propane is linked by ether and carbon–carbon bonds, however the exact chemical structure of lignin and its specific reaction in biodegradation remains unclear.
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PCL-degrading enzymes: cutinases and lipases Cutinases (E.C.3.1.1.74) are enzymes that hydrolyze the carboxy ester bonds of cutins, while lipases (E.C. 3.1.1.3) are enzymes that hydrolyze triacylglycerols. Both enzymes belong to the α/β hydrolase superfamily and contain three catalytic resid...
At the time, short land plants were confined to wet habitats by the biophysical limitations of the structural polymer in their cell wall, cellulose (Kenrick and Crane, 1997). Cellulose can produce extremely rigid structures when dry but in water, the hydrogen bonds that hold parallel chains ...
However, their stability in solution is often limited due to fiber aggregation, driven by a high affinity for forming interparticle bonds, which can reduce their effectiveness in various applications such as composite materials [39]. Several solutions to the aggregation problem of CNF have been ...
The filamentous fungus Trichoderma reesei is an important host organism for industrial enzyme production. It is adapted to nutrient poor environments where it is capable of producing large amounts of hydrolytic enzymes. In its natural environment T. rees