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Study Results from Scion Broaden Understanding of Chemical Technology (Softwood hydrolysate as a carbon source for polyhydroxyalkanoate production)

July 22, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Chemical Technology. According to news reporting from Rotorua, New Zealand, by NewsRx journalists, research stated, "Forest biomass represents a potential low-cost feedstock for polyhydroxyalkanoate (PHA) production. Softwoods, such as Pinus radiata (D."

The news correspondents obtained a quote from the research from Scion, "Don) are difficult to digest and require special pretreatments to expose polysaccharides for enzymatic saccharification. Different pretreatments can lead to inhibitor formation that may adversely affect PHA synthesis. Pinus radiata wood chips were subjected to high-temperature mechanical pre-treatment (HTMP) or steam explosion in the presence of sulphur dioxide (SEW) before being enzymatically treated to produce corresponding hydrolysates. Two PHA-producing bacteria Novosphingobium nitrogenifigens Y88(T) and Sphingobium scionense WP01(T) were grown on these hydrolysates. The highest content of PHA was produced by WP01 grown on HTMP hydrolysate (32% w/w PHA, YPHA/glucose = 0.22 and theoretical maximum yield of 46%). Gas chromatography and proton nuclear magnetic resonance spectroscopy indicated that the PHA produced was made up of polyhydroxybutyrate (PHB) with molecular weights ranging from 50-1600 kDa and polydispersities between 4.6 and 8.4. The melting temperature was close to that of pure PHB with percentage crystallinity ranging from 44-64%."

According to the news reporters, the research concluded: "This is the first report on the production of PHA from softwood hydrolysates derived from enzymatically saccharified pretreated Pinus radiata pulps."

For more information on this research see: Softwood hydrolysate as a carbon source for polyhydroxyalkanoate production. Journal of Chemical Technology and Biotechnology, 2014;89(7):1030-1037. Journal of Chemical Technology and Biotechnology can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Journal of Chemical Technology and Biotechnology - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-4660)

Our news journalists report that additional information may be obtained by contacting T. Bowers, Scion, Rotorua, New Zealand. Additional authors for this research include A. Vaidya, D.A. Smith and G. Lloyd-Jones (see also Chemical Technology).

Keywords for this news article include: Rotorua, Chemical Technology, Australia and New Zealand

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


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Source: Life Science Weekly


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