2,4-dinitrophenylhydrazanomethylphenol (dnphmp) was immobilized onto silicate rice husk ash to form a heterogeneous catalyst denoted as rhdnph. the elemental and edx analysis of rhdnph showed the nitrogen is incorporated into silica. the rhdnph had 154.6 m2g-1 as a specific surface area. the ft-ir clearly showed the appearance of –nh and c=n absorption band at the expected range. the tga curve ...

Cellulose hydrogel was produced from pretreated oil palm empty fruit bunch fiber (EFB) that went through acid hydrolysis and thermal hydrolysis. The pretreated EFB was dissolved in LiOH/urea aqueous solution using the rapid dissolution method and was subjected to a crosslinking process with the aid of epichlorohydrin to form hydrogel. The effects of both hydrolyses’ time on average molecular we...

The structure and enzymic activity of xyloglucanase Xgh74A and endoxylanase Xyn10D, components in the cellulosomes of cellulose-grown Clostridium thermocellum, were determined. Xyn10D is a thermostable endo-1,4-beta-xylanase with a module composition identical to Xyn10C (CBM22-GH10-Doc). It hydrolyses xylan and mixed-linkage 1,3-1,4-beta-glucan with a temperature optimum of 80 degrees C. Xylogl...

Patatin-related phospholipase A (pPLA) hydrolyses glycerolipids to produce fatty acids and lysoglycerolipids. The Oryza sativa genome has 21 putative pPLAs that are grouped into five subfamilies. Overexpression of OspPLAIIIα resulted in a dwarf phenotype with decreased length of rice stems, roots, leaves, seeds, panicles, and seeds, whereas OspPLAIIIα-knockout plants had longer panicles and see...

2,4-dinitrophenylhydrazanomethylphenol (DNPHMP) was immobilized onto silicate rice husk ash to form a heterogeneous catalyst denoted as RHDNPH. The elemental and EDX analysis of RHDNPH showed the nitrogen is incorporated into silica. The RHDNPH had 154.6 m2g-1 as a specific surface area. The FT-IR clearly showed the appearance of –NH and C=N absorption band at the expected range. The TGA curve ...

2,4-dinitrophenylhydrazanomethylphenol (DNPHMP) was immobilized onto silicate rice husk ash to form a heterogeneous catalyst denoted as RHDNPH. The elemental and EDX analysis of RHDNPH showed the nitrogen is incorporated into silica. The RHDNPH had 154.6 m2g-1 as a specific surface area. The FT-IR clearly showed the appearance of –NH and C=N absorption band at the expected range. The TGA curve ...

Two adjacent, highly homologous endoglucanase genes, celD and celE from Fibrobacter succinogenes S85, which were separated by an AT-rich 223-nucleotide intergenic region were characterized. The celD gene codes for endoglucanase D (EGD), a protein of 668 residues with a molecular mass of 71.7 kDa, while the celE gene encodes endoglucanase E, a protein of 467 amino acids with a molecular mass of ...

The complete nucleotide sequence of the Pseudomonas fluorescens subsp. cellulosa xynB gene, encoding an endo-beta-1,4-xylanase (xylanase B; XYLB) has been determined. The structural gene consists of an open reading frame (ORF) of 1775 bp coding for a protein of Mr 61,000. A second ORF (xynC) of 1712 bp, which starts 148 bp downstream of xynB, encodes a protein, designated xylanase C (XYLC), of ...