Some pulp mills expect to produce viscose fiber by means of pre-existing pulp production lines as used for conventional kraft pulp having a relatively high content of hemicellulose. In the present study oxygenreinforced alkali extraction was used to dissolve the oxidized lignin, which increased the content of alpha cellulose and increased the degree of mercerization. This paper considers the in...

The global demand for food could double in another 40 y owing to growth in the population and food consumption per capita. To meet the world's future food and sustainability needs for biofuels and renewable materials, the production of starch-rich cereals and cellulose-rich bioenergy plants must grow substantially while minimizing agriculture's environmental footprint and conserving biodiversit...

The expansins comprise a family of proteins that appear to be involved in the disruption of the noncovalent bonds between cellulose microfibrils and cross-linking glycans, thereby promoting wall creep. To understand better the expansion process in Petunia hybrida (petunia) flowers, we isolated a cDNA corresponding to the PhEXP1 alpha-expansin gene of P. hybrida. Evaluation of the tissue specifi...

Cellobiose dehydrogenase (CDH) is an extracellular hemoflavoenzyme produced by cellulose-degrading cultures of the wood-degrading basidiomycete Phanerochaete chrysosporium. CDH contains one flavin adenine dinucleotide (FAD) and one heme b per molecule, and it oxidizes cellobiose to cellobionolactone. In this report, a 2.4-kb cDNA encoding CDH was isolated by screening an expression library of P...

This paper reports a simple innovative method to align magnetic cellulose fibers by using a simple permanent magnet to fabricate unidirectional magnetic papers. Magnetic cellulose fibers were made by in situ synthesis of magnetite nanoparticles on alpha cellulose pulp extracted from American southern pine. Scanning electron microscope micrographs and energy dispersive X-ray spectroscopy maps in...

Novel mutations in the RSW1 and KNOPF genes were identified in a large-scale screen for mutations that affect cell expansion in early Arabidopsis embryos. Embryos from both types of mutants were radially swollen with greatly reduced levels of crystalline cellulose, the principal structural component of the cell wall. Because RSW1 was previously shown to encode a catalytic subunit of cellulose s...

Three forms of the RNA-dependent DNA polymerase were isolated from highly purified avian sarcoma virus B77 grown in duck embryo fibroblasts, using sequential chromatography on DEAE-cellulose, phosphocellulose, and poly(U)-cellulose. One form, which sedimented with about 5.2 S, contained only one species of polypeptide, with a molecular weight of 63,000; a second sedimented with about 7.8 S and ...

AIM: This study aimed to make corncobs the basic material for manufacture of microcrystalline cellulose. METHODS: Manufacture corncob cellulose microcrystals (CCMs) by isolating alpha-cellulose from corncobs, then hydrolyzed with HCl 2.5 N. The yield CCMs 14.51% can be used as orally disintegrating tablet (ODT) and has similarities Avicel standard comparison. RESULTS: Both organoleptic results ...

Abstract Bark from trees is considered a worthless raw material. However, this resource could be economically beneficial if utilized efficiently due to its rich chemical compounds. In study, an ethanol toluene-soluble extractive, alpha-cellulose and lignin obtained Leucaena leucocephala bark were characterized determine their functional groups. Based on FTIR spectral analysis, the results indic...