Investigators at Lappeenranta University of Technology Report Findings in Cellulose Chemistry (Enzymatically Hydrolyzed And Agitated Biomass Suspensions: Experimental Determination Of Fiber Size Distributions And Filtration Characteristics)
By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Cellulose Chemistry is now available. According to news reporting out of Lappeenranta, Finland, by NewsRx editors, research stated, "Separation processes in general present a significant challenge in the production of bioethanol from lignocellulosic materials. Solid-liquid separation,prior to the concentration of ethanol (for instance, by distillation),is often essential and upstream process conditions may determine how effectively this separation can be performed."
Our news journalists obtained a quote from the research from the Lappeenranta University of Technology, "In this experimental study, the properties of a lignocellulosic solid residue, generated through the enzymatic hydrolysis of biomass,and solid-liquid separations after the hydrolysis stagewere studied, focusing on the fiber and particle size distribution(FSD and PSD) of the solids. During the course of enzymatic hydrolysis, fiber and particle size distributions of the biomassduring and after enzymatic hydrolysis were measured using a fiber tester and a laser diffraction analyzer, respectively,in order to quantify the effect of enzymatic saccharification on the size distribution of the suspended solids. The main target, however, was to investigate the filtration properties of hydrolyzed and agitated suspensions using a pressure filter. The particle size distributions of the filtered samples were measured with the laser diffraction analyzer. Even though the filtration properties were strongly influenced by agitation, the effect on particle size distributions was found to be much smaller. During enzymatic hydrolysis, the most significant reduction in the size of the solidstook place rapidly after the cellulase addition."
According to the news editors, the research concluded: "The width of the fibers was not observed to decrease during the hydrolysis stage."
For more information on this research see: Enzymatically Hydrolyzed And Agitated Biomass Suspensions: Experimental Determination Of Fiber Size Distributions And Filtration Characteristics. Cellulose Chemistry and Technology, 2014;48(3-4):299-311. Cellulose Chemistry and Technology can be contacted at: Editura Acad Romane, Calea 13 Septembrie Nr 13, Sector 5, Bucuresti 050711, Romania (see also Cellulose Chemistry).
Our news journalists report that additional information may be obtained by contacting T. Kinnarinen, Lappeenranta Univ Technol, Lab Separat Technol, FI-53851 Lappeenranta, Finland. Additional authors for this research include T. Koiranen, A. Hakkinen and M. Louhi-Kultanen.
Keywords for this news article include: Europe, Finland, Lappeenranta, Cellulose Chemistry
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