The Use of Free and Immobilized Cells of Debaryomyces polymorphus to Produce Ethanol from Jerusalem Artichoke Tubers

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概要

• 論文の詳細を見る

• A newly isolated strain of Debaryomyces polymorphys UWO(PS)79-131 was used to produce ethanol from inulin sugars present in Jerusalem artichoke(Helianthus tuberosus)tubers. Both free and immobilized cells were tested. Using free cells batch fementation was completed in 32 h obtaining 42.5 g Ethanol/l from 100 g sugars/l intinal concentration. The maximum specific growth rate was μ_max=0.2h^<-1>, and ethanol yield and % initial sugars utilization were found to be Y_<p/s>=0.45 g ETOH/g sugars(88% of theoretical yield)and 91% respectively. Debaryomyces polymorphus cells were also immobilized by entrapment within small Na alginate beads and used batchwise for the total fermentation of 100g sugars/l in only 8 h to give 47.2 g ETOH/l and an ethanol yield Y_<p/s>=0.49 g ETOH/g sugars(96% of theoretical yield). The same immobilized cells were recycled and used repeatedly for 11 barch cycles with fresh medium charged into the fermentor at the beginning of each cycle. It was found that the immobilized cells were extremely stable and the ethanol yield was almost constant at 95% of the theoretical during the 11 batch cycles.

• 公益社団法人日本生物工学会の論文
• 1983-10-25

著者

• Bajpai P.

  Department Of Plant Sciences The University Of Western Ontario

• MARGARITIS A.

  Chemical and Biochemical Engineering, Facultt of Engineering Science

• LACHANCE M.

  Department of Plant Sciences, The University of Western Ontario

• Lachance M.

  Department Of Plant Sciences The University Of Western Ontario

• Margaritis A.

  Chemical And Biochemical Engineering Facultt Of Engineering Science

関連論文

• The Use of Free and Immobilized Cells of Debaryomyces polymorphus to Produce Ethanol from Jerusalem Artichoke Tubers

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