Mechanistic insights into glycosidic bond activation in cellulose pyrolysis were obtained via first-principles density functional theory calculations that explain the peculiar similarity in kinetics for different stereochemical glycosidic bonds (beta vs alpha) and establish the role of the three-dimensional ...
Cellulose is composed of β-D-glucan units linked by (1→4)glycosidic bondsthat are formed by a simple polymerization of glucose residues from a substrate such as UDP-glucose (O'Sullivan, 1997;Delmer and Amor, 1995). The stereochemistry conferred by the glycosidic linkage creates a linear exte...
(2007; 2009) purified two XET isoenzymes from extracts of barley seedlings to a near monodisperse form and showed that the barley HvXET5 and HvXET6 enzymes catalyse the in vitro formation of covalent linkages between xyloglucan oligosaccharide acceptors and celluloses, and between xyloglucan ...
Probable endoglucanase involved in the degradation of cellulose or related beta-glucans. Gene Name celCCF Uniprot ID P37698 Uniprot Name Endoglucanase F Molecular Weight 80543.885 Da References Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 ...
Is a polymer of d-glucose molecules that are linked by linear β-glycosidic bond with side branches that differ according to its sources [85].β-Glucans exist as (1 → 3)-, (1 → 6)-β-glucans such as zymosan, laminarin, lentinan (12), and pleuran [86]. They have been extracted...
Enzymes involved in cellulose hydrolysis are often inhibited by their end-products, cellobiose and glucose. Efforts have been made to produce more efficient enzyme variants that are highly tolerant to product accumulation; however, further improvements are still necessary. Based on an alternative ...
4-glucoside bond of various substrates such as beta-D-glucan, lichenan, cellulose, or chitosan at a temperature of 30 to 70°C and under pH 3 to 10, so the beta-1,3-1,4-glucanase protein can be useful in various industrial fields of producing paper, pulp, cleansers, bio-materials,...
doi:10.1007/978-981-19-6466-4_4尾-glucanases are the key enzymes involved in the conversion of complex polysaccharides such as glucan, cellulose into simple units of glucose by the hydrolysis of the glycosidic bond. Glucanases are reported to be having multifarious applications like degradation of...
CelluloseModel compoundsSolid-state NMRGlycosidic bond13C Isotopic labelingDouble Quantum (DQ) NMR, which utilizes the magnetic dipole interaction between the 13C atoms, was used for the complete assignment of the 13C NMR resonances to the corresponding carbon ring positions for the monoclinic and ...
Cellulose membranes with a pore width of 0.2 µm was soaked in lauryl alcohol for 15 min at 58 °C. Afterwards, the excess of lauryl alcohol was dried with filter paper and weighed to ensure an increase in weight of 90–110%. Once dried, membranes were placed in Franz-type diffusion ...