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  • 1
    Digitale Medien
    Digitale Medien
    Rapid Removal of Lactic Acid from Wastewater by a Flocculent Yeast (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A process has been developed for rapid removal of the lactic acid in sauerkraut processing wastewater by a flocculent strain of Kluyveromyces fragilis. Under optimum conditions, the yeast reduced the lactic acid by 95–97% in 4 hr. and the net increase in yeast dry weight was slightly higher than 1,000 mg/liter. The yield of yeast based on the amount of lactic acid consumed was approximately 34%. The yeast cells settled rapidly and compacted well and greater than 99% of them settled in 1 hr. The results of this study indicate that using K. fragilis to reduce the lactic acid in the wastewater may have economic value in waste disposal and in the production of feed yeast.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb04206.x
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  • 2
    Digitale Medien
    Digitale Medien
    CHARACTERIZATION OF BAKED BEAN PROCESSING WASTEWATER AND ITS ASSIMILATION BY Aspergillus foetidus (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Baked bean processing wastewater is high in BOD (biochemical oxygen demand) and produces noxious odors when treated in municipal activated sludge systems. The present study describes a process for the assimilation of this wastewater by the mycelium of Aspergillus foetidus NRRL 337. The fungus is capable of rapidly digesting over 80% of the BOD and produces no foul odors. The mycelium has a crude protein content of greater than 50% and is readily harvested by simple filtration. The optimal conditions for the fungal process are as follows: pH, 3.3; temperature, 30°C; incubation time, 24 hr; and aeration rate, 2 mMO2/liter/hr.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb06485.x
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  • 3
    Digitale Medien
    Digitale Medien
    CITRIC ACID FERMENTATION OF BREWERY WASTE (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Spent grain liquor, a brewery waste, was used as a fermentation medium for the production of citric acid by Aspergillus foetidus (formerly called A. niger NRRL 337.) The yields of citric acid varied from 3.5–12.3g/liter of the waste fermented, depending on the samples. On the basis of the reducing sugar consumed, the yields ranged from 42–58%. The added nitrogen compounds increased mycelial growth and the consumption of sugar, but markedly reduced the amount of citric acid formed. The addition of phosphate (KH2PO4) appeared to have little effect on mycelial growth and citric acid production. Methanol in concentrations of 2–4% markedly increased the formation of citric acid from the waste. There was a reduction in mycelial growth associated with the use of methanol.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1977.tb01504.x
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  • 4
    Digitale Medien
    Digitale Medien
    ISOLATION AND CHEMICAL EVALUATION OF PROTEIN FROM CLAM WASH WATER (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: An appreciable amount of clam waste protein concentrate was obtained from the clam wash water by treatment with 10N H2SO4, at pH 4.0. Protein yields were about 41% by this process. Proximate analyses of the freeze-dried clam waste protein concentrate were: moisture, 2.21%; protein, 67.9%; fat, 11.22%; fiber, 0.32%; ash, 4.92% and N-free extract, 13.43%. Amino acid scores of the clam waste protein concentrate were considerably lower than those of the FAO reference pattern of amino acids. The clam waste protein concentrate was first limiting in leucine and valine, followed by the sulfur-containing amino acids (cystine and methionine) and isoleucine.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07507.x
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  • 5
    Digitale Medien
    Digitale Medien
    COMPARATIVE STUDIES ON THE NITROGEN SOLUBILITY OF MUNG BEANS, PEA BEANS AND RED KIDNEY BEANS (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 35 (1970), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The effect of pH and some salts on the extraction of nitrogenous matter from mung beans, pea beans and red kidney beans has been studied. The nitrogen solubilities of these beans were found to be strongly pH-dependent. The amount of nitrogen extracted at alkaline pH is greater than that produced at either neutral or acidic PH. Minimum points of nitrogen dispersion occurred at pH 4.0. Salts dispersed more nitrogenous constituents from the beans than did water. Dilute solutions of sodium chloride, sodium sulfate, calcium chloride and magnesium chloride were found to have an inhibitory effect on the dispersion of the nitrogenous matter of the beans. Alkaline salts such as sodium carbonate, disodium phosphate and sodium citrate appeared to be fairly effective dispersing agents, and the exact amount of nitrogen extracted was dependent upon the concentration of the salt solution.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1970.tb12174.x
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  • 6
    Digitale Medien
    Digitale Medien
    A Solid State Fermentation System for Production of Ethanol from Apple Pomace (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A solid state fermentation system for the production of ethanol from apple pomace with a Montrachet strain of Saccharomyces cerevisiae is described. The yields of ethanol varied from about 29g to more than 40g per kg of apple pomace, depending on the samples fermented. Separation of up to 99% of the ethanol from spent apple pomace was achieved with a rotary vacuum evaporator. The results of this study indicate that the alcoholic fermentation of apple pomace might be an efficient method of alleviating waste disposal problems with the concomitant production of ethanol.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12897.x
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  • 7
    Digitale Medien
    Digitale Medien
    A PROCESS FOR THE REMOVAL OF COFFEE COLOR FROM WASTEWATER (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A simple and efficient process has been developed and is described for the removal of coffee color from wastewater by carbon adsorption. The quantity of coffee color adsorbed by the carbon was strongly pH dependent, being greater between pH 2 and 4. The contact time required to reach maximum adsorption was 60 mm. The adsorption efficiency did not increase appreciably when the temperature was elevated. Under optimum operating conditions, this carbon adsorption process reduced the color concentration by 98%. Studies have shown the adsorption of coffee color on activated carbon to be of the empirical Freundlich type.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb10052.x
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  • 8
    Digitale Medien
    Digitale Medien
    Kinetics of direct fermentation of agricultural commodities to L(+) lactic acid byRhizopus oryzae (1989)
    Springer
    Biotechnology letters 11 (1989), S. 597-600 
    Details
    ISSN: 1573-6776
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Summary The kinetics of fermenting barley, cassava, corn, oats, and rice directly to L(+) lactic acid byRhizopus oryzae NRRL 395 were determined. The rates of carbohydrate consumption and L(+) lactic acid production were found to be influenced by the type of substrate, the substrate concentration, the fermentation temperature, and the presence of a neutralizing agent.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01040043
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  • 9
    Digitale Medien
    Digitale Medien
    Direct fermentation of corn to L(+)-lactic acid byRhizopus oryzae (1989)
    Springer
    Biotechnology letters 11 (1989), S. 299-300 
    Details
    ISSN: 1573-6776
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Summary Rhizopus oryzae NRRL 395 was found capable of fermenting ground corn directly to L(+)-lactic acid in the presence of calcium carbonate. The average yield of L(+)-lactic acid was more than 44% on the basis of the amount of total carbohydrate as glucose consumed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01031581
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  • 10
    Digitale Medien
    Digitale Medien
    Chitosan production fromRhizopus oryzae mycelia (1990)
    Springer
    Biotechnology letters 12 (1990), S. 911-912 
    Details
    ISSN: 1573-6776
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Summary Chitosan was successfully produced as a second valuable product fromRhizopus oryzae mycelia which had been previously used to make L(+) lactic acid. The highest yield of extractable chitosan was 700 mg/L.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01022589
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