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Continuous production of fructose syrup and ethanol from hydrolysed Jerusalem artichoke juice

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Journal of Industrial Microbiology

Summary

The results from this study showed that Jerusalem artichoke juice can be used for the production of very enriched fructose syrup by selective conversion of glucose to ethanol in a continuous process using immobilized cells ofSaccharomyces cerevisiae ATCC 36859. The product contained up to 99% of the total carbohydrates as fructose compared to 76% in the feed. Using Jerusalem artichoke juice supplemented with some glucose a product was obtained with 7.5% w/v ethanol which made ethanol recovery economically favourable. It was found that some fructose was consumed in these continuous processes; the glucose/fructose conversion rate ratio was regulated by the glucose concentration in the product stream.

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Authors and Affiliations

  1. Department of Chemical Engineering, Faculty of Engineering, University of Ottawa, 770 King Edward Avenue, K1N 9B4, Ottawa, Ontario, Canada

    D. W. Koren & Z. Duvnjak

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  1. D. W. Koren
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  2. Z. Duvnjak
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Koren, D.W., Duvnjak, Z. Continuous production of fructose syrup and ethanol from hydrolysed Jerusalem artichoke juice. Journal of Industrial Microbiology 7, 131–135 (1991). https://doi.org/10.1007/BF01576075

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  • DOI: https://doi.org/10.1007/BF01576075

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