The macromolecular chains of isolated celluloses contain weak links due to the presence of nonglucose units (in the case of wood celluloses) and of glucose units having carboxy and aldehyde groups in positions 2, 3, and 6 which are responsible for various chemical transformations of cellulose ...
Many derivatives of industrially useful cellulose have hydroxyls of the anhydroglucose(AHG) units uncompletely substituted. Since each AHG unit of a cellulose molecule is a trihydric alcohol,consisted of one primary(position 6) and two secondary hydroxyl groups(positions 2 and 3), the distribution...
The Fine Structure of Cellulose In volume V of this series E. Pacsu ( 46 ) has reviewed the cellulose problem starting from the concept of the cateniform 1,4-尾-polyglucosan molecule and discussing the interrelationship of these chains in crystallized micellae. In the... A Frey-Wyssling...
On the other hand, bands associated with cellulose were more intense with polarisation parallel to the direction of cell elongation. These results show that in dry and hydrated cell walls, not only was there a net orientation of cellulose, but also of pectin. The implication of this is that ...
I. Immobilization of luciferase from the firefly Luciola mingrelica: catalytic properties and thermostability of the enzyme immobilized on cellulose films. Enzyme Microb. Technol. 5, 60–64 (1983). CAS Google Scholar Brovko, L., Beliaeva, E. I. & Ugarova, N. N. Subunit interactions in ...
Cellulose Degradation by Sulfolobus solfataricus Requires a Cell-Anchored Endo- -1-4-Glucanase p> A sequence encoding a putative extracellular endoglucanase ( sso1354 ) was identified in the complete genome sequence of Sulfolobus solfataricus . The e... M Girfoglio,M Rossi,R Cannio - 《Journal ...
The basic molecular structure of cellulose is a linear polymer composed of β-1,4-linked glucosyl units. From:New and Future Developments in Microbial Biotechnology and Bioengineering,2016 Related terms: Download as PDF Set alert About this page ...
Separation of enantiomers by nanoliquid chromatography and capillary electrochromatography using a bonded cellulose trisphenylcarbamate stationary phase A cellulose trisphenylcarbamate-bonded chiral stationary phase was applied to nano-liquid chromatography (nano-LC) and capillary electrochromatography (CEC... ...
cetd.tmu.edu.tw|基于2个网页 2. 结构与活性关系 ...同,这些差异会影响特定的生理活性,这些衍生物可作为结构与活性关系(structure-activity-relationship) 的探讨。 www.alllw.com|基于 1 个网页 例句
The crystal structure of beta-D-cellotetraose shows the same molecule packing as cellulose II, with two antiparallel molecules in the unit cell: For cellulose II, the orientation of the C6-O6 bonds has been described as gauche-trans and ... K Gessler,N Krauss,T Steiner,... - 《Science...