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Studies from Hokkaido University Have Provided New Information about Enzymes and Coenzymes (Biobleaching of Acacia kraft pulp with extracellular...

August 13, 2014



Studies from Hokkaido University Have Provided New Information about Enzymes and Coenzymes (Biobleaching of Acacia kraft pulp with extracellular enzymes secreted by Irpex lacteus KB-1.1 and Lentinus tigrinus LP-7 using low-cost media)

By a News Reporter-Staff News Editor at Biotech Week -- Research findings on Enzymes and Coenzymes are discussed in a new report. According to news originating from Hokkaido, Japan, by NewsRx correspondents, research stated, "The white-rot fungi Irpex lacteus KB-1.1 and Lentinus tigrinus LP-7 have been shown in previous studies to have high biobleaching activity in vivo. The aim of this study was to investigate the activities and stabilities of extracellular enzymes, prepared from I. lacteus and L. tigrinus culture grown in three types of economical media of agricultural and forestry wastes, for biobleaching of Acacia oxygen-delignified kraft pulp using kappa number reduction as an indicator of delignification."

Our news journalists obtained a quote from the research from Hokkaido University, "After 3 days of incubation, the extracellular enzymes preparations from I. lacteus and L. tigrinus cultures in media of Acacia mangium wood powder supplemented with rice bran and addition 1 % glucose (WRBG), resulted in significant decrease of 4.4 and 6.7 %, respectively. A slightly higher kappa number reduction (7.4 %) was achieved with the combine extracellular enzymes from I. lacteus and L. tigrinus. One of the strategies for reducing the cost of enzyme production for treatment processes in the pulp and paper industry is the utilization of agricultural and forestry waste."

According to the news editors, the research concluded: "Thus, WRBG has potential as a culture medium for producing stable lignolytic enzymes simply and economically."

For more information on this research see: Biobleaching of Acacia kraft pulp with extracellular enzymes secreted by Irpex lacteus KB-1.1 and Lentinus tigrinus LP-7 using low-cost media. World Journal of Microbiology & Biotechnology, 2014;30(8):2263-2271. World Journal of Microbiology & Biotechnology can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA (see also Enzymes and Coenzymes).

The news correspondents report that additional information may be obtained from S. Afrida, Hokkaido University, Grad Sch Agr, Lab Forest Resource Biol, Kita Ku, Sapporo, Hokkaido 0608589, Japan. Additional authors for this research include Y. Tamai, T. Watanabe and M. Osaki.

Keywords for this news article include: Asia, Japan, Hokkaido, Agricultural, Enzymes and Coenzymes

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


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Source: Biotech Week


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