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  • 1
    Electronic Resource
    Electronic Resource
    Continuous production of very enriched fructose syrup by the conversion of glucose to ethanol from glucose-fructose mixtures in an immobilized cell reactor (1989)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 24 (1989), S. 0 
    Details
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: The yeast Saccharomyces cerevisiae ATCC 36859, which preferentially utilizes glucose in glucose-fructose mixtures, was immobilized and used for the continuous production of very enriched fructose syrup. A syrup containing fructose as 99% of the reducing sugars was produced from a 10.1% w/v glucose and 9.8% w/v fructose mixture at a dilution rate of 0.106 h−1. Later in this process when the dilution rate was increased to 0.366 h−1 the ethanol productivity was 12.7 g 1−1 h−1. This is 16% less than the value attained in a similar medium containing only glucose as the carbohydrate. The fructose content was also increased from 55 to 95% of the reducing sugars in a food grade mixture of high fructose corn syrup and Jerusalem artichoke juice. Purification of the product with activated carbon and ion-exchange resin produced a stable, colourless and very enriched fructose syrup suitable for human consumption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1989.tb00663.x
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  • 2
    Electronic Resource
    Electronic Resource
    Production of fructose syrup by selective removal of glucose from hydrolyzed Jerusalem artichoke juice (1987)
    Springer
    Biotechnology letters 9 (1987), S. 783-788 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary The study shows that the yeastSaccharomyces cerevisiae ATCC 36859 can be successfully used for the production of fructose syrup from glucose-fructose mixtures or from Jerusalem artichoke juice by the conversion of glucose to ethanol. During these processes fructose concentration was unchanged. Ethanol yield (YP/S), based on glucose consumed in Jerusalem artichoke juice, and ethanol concentration were 0.428 g/g and 1.7% (w/v) respectively. When the juice was supplemented with glucose higher ethanol concentrations were attained but with lower ethanol yields.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01028284
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Continuous production of fructose syrup and ethanol from hydrolysed Jerusalem artichoke juice (1991)
    Springer
    Journal of industrial microbiology and biotechnology 7 (1991), S. 131-135 
    Details
    ISSN: 1476-5535
    Keywords: Saccharomyces cerevisiae ; Jerusalem artichoke ; High-fructose syrup ; Ethanol ; Immobilized yeast cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01576075
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Kinetics of the selective fermentation of glucose from glucose/fructose mixtures using Saccharomyces cerevisiae ATCC 36859 (1993)
    Berlin : Wiley-Blackwell
    Acta Biotechnologica 13 (1993), S. 311-322 
    Details
    ISSN: 0138-4988
    Keywords: Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: The kinetics of batch fermentation during the growth of S. cerevisiae ATCC 36859 was studied in various glucose/fructose mixtures. It was found that the growth is inhibited equally by glucose and fructose even though fructose is not consumed to any large extent by the yeast under the conditions tested here. The inhibition of growth by the substrate and ethanol is represented by linear equations. These equations were combined with the MONOD expression in order to formulate equations for the biomass growth, glucose and fructose consumption and ethanol production. Parameter estimates were obtained by fitting these equations to batch fermentation data and so developing models which indicate that the growth is completely inhibited when 62 g/l ethanol is produced by the yeast, while glucose consumption and ethanol production continue up to an ethanol concentration of 152 g/l. Products containing a high concentration of fructose are best produced by using a high initial biomass concentration.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/abio.370130402
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Fed-batch production of concentrated fructose syrup and ethanol using Saccharomyces cerevisiae ATCC 36859 (1992)
    Berlin : Wiley-Blackwell
    Acta Biotechnologica 12 (1992), S. 489-496 
    Details
    ISSN: 0138-4988
    Keywords: Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A fed-batch process is used for the production of concentrated pure fructose syrup and ethanol from various glucose/fructose mixtures by S. cerevisiae ATCC 36859. Applying this technique, glucose-free fructose syrups with over 250 g/l of this sugar were obtained using High Fructose Corn Syrup and hydrolyzed Jerusalem artichoke juice. By encouraging ethanol evaporation from the reactor and condensing it, a separate ethanol product with a concentration of up to 350 g/l was also produced. The rates of glucose consumption and ethanol production were higher than in classical batch ethanol fermentation processes.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/abio.370120610
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    Paper (German National Licenses)
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