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Characteristics of Polyhydroxyalkanoates Synthesis by Ralstonia eutropha from Vegetable Oils  

Park, Dae-Hoo (Department of Chemical Engineering and Research Institute of Industrial Science and Technology, College of Engineering, Chungbuk National University)
Kim, Beom-Soo (Department of Chemical Engineering and Research Institute of Industrial Science and Technology, College of Engineering, Chungbuk National University)
Publication Information
KSBB Journal / v.25, no.3, 2010 , pp. 239-243 More about this Journal
Abstract
Six strains of Ralstonia eutropha were grown to investigate characteristics of polyhydroxyalkanoates (PHA) synthesis from vegetable oils or glycerol. Poly(3-hydroxybutyrate) homopolymer was formed using soybean oil, olive oil, or glycerol as carbon source, while poly(3-hydroxybutyrate-co-4-hydroxybutyrate) or poly(3-hydroxybutyrateco-3-hydroxyvalerate) copolymers were synthesized by co-feeding $\gamma$-butyrolactone or pentanoic acid, respectively. Optimum strain was determined as R. eutropha KCTC 2662 in terms of final cell concentration and PHA content. From 20 g/L of soybean oil (optimum substrate), cell concentration and PHA content at 72 h ranged 1.7~9.2 g/L and 70~92 wt%, respectively.
Keywords
polyhydroxyalkanoates (PHA); Ralstonia eutropha; vegetable oil; glycerol;
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Times Cited By KSCI : 2  (Citation Analysis)
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