The growing demand for rayon and cellulosic products has resulted in the conversion of a number of kraft pulp mills into dissolving pulp mills in recent years. In fact, kraft-based dissolving pulp production fits well into the concept of an integrated forest biorefinery, in particular, the utilization of dissolved organics in the pre-hydrolysis liquor (PHL) for bio-materials and bio-energy purp...

Separation and structural characterization of lignin are essential for valueadded utilization of hemicelluloses and lignin in the prehydrolysis liquor (PHL) of a kraft-based Whangee (a genus of bamboo) dissolving pulp production. In this work, lignin in the PHL was separated by acidification treatment (AT) and rotary vacuum evaporation treatment (RVET), and the separated crude lignin was then c...

Hemicelluloses dissolved in the pre-hydrolysis liquor (PHL) of kraftbased dissolving pulping processes can potentially be used to produce high value-added products such as fuel ethanol and xylitol. However, the isolation of lignin in PHL is a problem that remains unsolved and obstructs the utilization of those parts of hemicelluloses. Based on the principle of lignin isolation by acidification,...

The substitution of gasoline by ethanol with different ratios is commercialized around the world. In this review, an overview on feedstocks, affecting factors, and technical advances in starch production has been systematically presented. Most produced from starchy crops, among which corn, wheat, sorghum are major contributors. Additional crops have also studied for but not yet industrialized. ...

Pulp and Paper Research Division, BCSIR Laboratories, Dhaka 1205, Bangladesh Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton E3B 5A3, NB, Canada Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University...

In order to fold non-native proteins, chaperonin GroEL undergoes numerous conformational changes and GroES binding in the ATP-dependent reaction cycle. We constructed the real-time three-dimensional-observation system at high resolution using a newly developed fast-scanning atomic force microscope. Using this system, we visualized the GroES binding to and dissociation from individual GroEL with...