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Study Results from University of Alberta in the Area of Enzymes and Coenzymes Reported (Surface and thermal characterization of natural fibres...

August 7, 2014



Study Results from University of Alberta in the Area of Enzymes and Coenzymes Reported (Surface and thermal characterization of natural fibres treated with enzymes)

By a News Reporter-Staff News Editor at Agriculture Week -- Research findings on Enzymes and Coenzymes are discussed in a new report. According to news originating from Edmonton, Canada, by VerticalNews correspondents, research stated, "Natural fibres are a potential replacement for glass fibre in composite materials. Inherent advantages such as low density, biodegradability and comparable specific mechanical properties (relative to glass fibre composites) make natural fibres an attractive option."

Our news journalists obtained a quote from the research from the University of Alberta, "However, limitations such as poor thermal stability, moisture absorption and poor compatibility with polymeric matrices are challenges that need to be resolved. The primary objective of this research was to study the effect of five enzymatic systems on the surface chemical, morphological and thermal properties of natural fibres. Flax and hemp fibres were treated with hemicellulases, pectinases and oxidoreductase. Surface and thermal properties were measured using X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) and force tensiometry. Each treatment rendered the surface topography of both fibres free of contaminants and exposed the individual fibre bundles. Treatment with hemicellulase and pectinase improved the thermal properties for both fibres. XPS measurements confirmed reduction of the hemicellulosic content of both fibres for xylanase and pectinases (polygalacturonase and pectin-methylesterase). Removal of amorphous hemicellulosic material from the fibre surface and consequent exposure of the crystalline cellulose network resulted in a lower contact angle for all the treated samples."

According to the news editors, the research concluded: "This work demonstrated that enzymes offer an inexpensive and environmentally attractive option to improve the surfaces of natural fibres for composite applications."

For more information on this research see: Surface and thermal characterization of natural fibres treated with enzymes. Industrial Crops and Products, 2014;53():365-373. Industrial Crops and Products can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Industrial Crops and Products - www.elsevier.com/wps/product/cws_home/522825)

The news correspondents report that additional information may be obtained from M. George, University of Alberta, Dept. of Agr Food & Nutr Sci, Biorefining Convers & Fermentat Lab, Edmonton, AB T6E 2P5, Canada. Additional authors for this research include P.G. Mussone and D.C. Bressler.

Keywords for this news article include: Canada, Alberta, Edmonton, Enzymes and Coenzymes, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Agriculture Week


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