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  • 1
    Electronic Resource
    Electronic Resource
    Amino acid composition of whole cells of different yeasts (1979)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 27 (1979), S. 982-984 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60225a040
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The ecology of yeast flora associated with cactiphilic Drosophila and their host plants in the Sonoran desert (1976)
    Springer
    Microbial ecology 3 (1976), S. 11-30 
    Details
    ISSN: 1432-184X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Yeasts were isolated from the rotting stems of 7 species of cereoid cacti and 4 species ofDrosophila which utilize them as host plants. The yeast most common among 132 nonidentical isolates from the cacti and 187 nonidentical isolates from the flies, respectively, were:Pichia membranaefaciens (59 and 126),Candida ingens (22 and 8),Torulopsis sonorensis (16 and 20), andCryptococcus cereanus (11 and 14). Isolates capable of utilizingd-xylose were recovered primarily fromD. pachea andL. schotti. Adult flies were present on the substrates whenP. membranaefaciens was at high concentrations. As the pH of the substrates increased, the percent ofC. ingens cells increased relative to other yeast species. Larvae were detected mainly in alkaline substrates, and since adults did not yieldC. ingens to the extent the substrates did,C. ingens may be important in larval nutrition.Torulopsis sonorensis was recovered mainly fromD. mojavensis and its host plants,M. gummosus andL. thurberi. The concentration ofT. sonorensis in the substrates was negatively correlated with the temperature of the substrate.Cryptococcus cereanus was found in high concentrations in suitable tissues for adult flies but most adults did not yield this species to any extent. The yeast habitat diversities from the substrates had the following order:L. thurberi 〉 C. gigantea 〉 C. gigantea soils ≫ M. gummosus 〉 L. schotti 〉 others. Habitat diversity is discussed in relation to the variation of the physical conditions and chemical composition of the substrates. The yeast habitat diversities from the flies had the orderD. pachea 〉 D. mojavensis ≫ D. nigrospiracula 〉 undescribed Species M. The degree of habitat diversity is possibly a function of the surface feeding behavior of the flies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02011450
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    ENERGY CONSERVATION IN DRYING OF FRUITS IN TUNNEL DEHYDRATORS (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food process engineering 4 (1981), S. 0 
    Details
    ISSN: 1745-4530
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: This study reports the energy use and thermal losses associated with tunnel dehydrators and discusses methods of increasing energy efficiency. These dehydrators can operate with an efficiency of water removal greater than 50%. It is shown that energy conservation techniques such as minimizing air leakage, increasing air recirculation, utilizing a furnace heat shield to prevent heat losses, and maximizing input can result in significant energy savings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4530.1981.tb00253.x
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  • 4
    Electronic Resource
    Electronic Resource
    Enhancement and stabilization of the production of glucoamylase by immobilized cells of Aureobasidium pullulans in a fluidized-bed reactor (1990)
    Springer
    Applied microbiology and biotechnology 33 (1990), S. 407-409 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Glucoamylase production by Aureobasidium pollulans A-124 was compared in free-living cells, cells immobilized in calcium alginate gel beads aerated on a rotary shaker (agitation rate 150 rpm), and immobilized cells aerated in an air bubble column reactor. Fermentation conditions in the bioreactor were established for bead concentration, substrate (starch) concentration, calcium chloride addition to the fermentation medium, and rate of aeration. Production of glucoamylase was optimized at approximately 1.5 units of enzyme activity/ml medium in the bioreactor under the following conditions: aeration rate, 2.0 vol air per working volume of the bioreactor (280 ml) per minute; gel bead concentration, 30% of the working volume; substrate (starch) concentration, at 0.3% (w/v); addition of calcium chloride to the medium at a final concentration of 0.01 M. Productivity levels were stabilized through the equivalent of ten batches of medium with the original inoculum of immobilized beads.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00176655
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    Paper (German National Licenses)
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