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  • 1990-1994  (5)
  • Biochemistry and Biotechnology  (2)
  • quality  (2)
  • Ammonia  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Seed protein yield from someCrotalaria spp andin vitro nutritional quality of that fromC. juncea (1990)
    Springer
    Plant foods for human nutrition 40 (1990), S. 195-200 
    Details
    ISSN: 1573-9104
    Keywords: Crotalaria ; seed ; protein ; yield ; quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Seed Protein Concentrates (SPC) of 6 species ofCrotalaria were extracted and the extractabilities of SPC, total N and protein N determined. SPC of high yielding species (C. juncea) was analysed for the contents of amino acids, ash, phosphorus, sugar, starch, fibre and calories, as well as forin vitro digestibility. Results indicate the promising potential ofC. juncea for SPC yield.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01104142
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Yield andin vitro nutritional quality of some leguminous seed protein isolates (1991)
    Springer
    Plant foods for human nutrition 41 (1991), S. 247-251 
    Details
    ISSN: 1573-9104
    Keywords: wild legumes ; seed protein ; yield ; quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Seed protein concentrates (SPC) were extracted from 4 leguminous species and the extractabilities of total N (nitrogen), protein N and SPC determined. In addition, composition, calorie value andin vitro enzymatic digestibility of these SPCs was analysed. Results indicate the promising nutritional potential of these SPCs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02196393
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Isolation of a symbiotic cyanobacterium, Nostoc cycadae, and its nitrogen metabolism (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 299-302 
    Details
    ISSN: 1573-0972
    Keywords: Ammonia ; cyanobacterium ; Cycas ; Nostoc cycadae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Nostoc cycadae isolated from the host Cycas revoluta grew well in medium devoid of combined nitrogen but maximum growth was in medium containing nitrate (4.1 μg chlorophyll a ml-1). Aerated coralloid roots in the dark produced more NH3 when treated with l-methionine-dl-sulphoximine (MSO), an inhibitor of glutamine synthetase. With cultured N. cycadae and freshly isolated N. cycadae, NH3 production was enhanced by adding a host-tissue extract in the light or in the dark, whereas it was decreased by adding MSO. Nitrogenase activity was four times higher in coralloid root than in the cultured endophyte N. cycadae. The host-tissue extract may inhibit NH3 assimilatory pathways, thus inducing production of NH3 that can be utilized by the host itself.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00414868
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Measurement and regulation of the culture reduction state in Clostridium acetobutylicum (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 38 (1991), S. 181-190 
    Details
    ISSN: 0006-3592
    Keywords: solventogenic metabolism ; NADH content ; NADH fluorescence ; continuous fermentation ; butanol biosynthesis ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: With a constant glucose feed concentration, the change in the continuous culture dillution rate resulted in an altered fermentation profile and the cellular NADH content. The cultures growing at high dillution rates demonstrated an oxidative metabolism low NADH and butanol concentrations. The low specific NADH flourescence (F/X) at high butanol production rates suggested that a rapid regeneration of NADH to NAD is essential for a high solventogenic culture activity. The culture florescence and butanol concentration remained constant in the solventogenic dilution rate range of D = 0.05-0.2 h-1 with an inverse relationship between the specific flourescence (F/X) and the specific butanol production rate, qB. Flourometric NADH observations were confirmed by enzymatic NADH determination. The stiochiometric “Fermentation Equation” was used to check the experimental data consistency and to investigate the role of the available biosynthetic and reduction energy on the culture metabolic activities under different growth conditions. The butanol concentration in the broth was stabilized in a fed-batch process when the culture NADH fluorescence was being controlled through the addition of fresh medium.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260380210
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    NADH fluorscence in a carbon-limited fermentation (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 38 (1991), S. 191-195 
    Details
    ISSN: 0006-3592
    Keywords: continuous flow acetone-butanol fermentations ; reduction energy ; solvent production activity ; inlet sugar concentrations ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The continuous flow acetone-butanol fermentation conducted at lowered inlet feed sugar concentrations and at a constant dilution rate D =0.075 h-1 demonstrated a significant decreases in the availability of the cell population “reduction energy” (F/X), resulting in an exclusive accumulation of intermediate acids under those conditions. The cultures resumed its solvent production activity when the inlet sugar concentration in the feed stream was increased from 20 to 40 g/L at the same low growth/dilution rates. A linear correlation between the culture reduction content (F/X) and the specific butanol rate (qB) was observed under the present conditions, indicating the necessity of the NADH availability for the increased solvent production.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260380211
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    Paper (German National Licenses)
    Fulltext
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