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  • 1
    Electronic Resource
    Electronic Resource
    Food Volatiles: Gas Chromatographic Determination of Partition Coefficients in Water-Lipid Systems (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SUMMARY– The distribution of volatile solutes between two immiscible solvents can be determined by a study of the vapor pressures in the corresponding single solvent systems, since the partition coefficient is related to the Henry's constants: Kp= k2k12. Application of this principle makes possible the gas chromatographic determination of partition coefficients involving nonvolatile solvents. The method was applied to a solvent pair consisting of paraffin oil and aqueous sodium sulfate. An approximate semilogarithmic relationship exists between the partition coefficient and number of carbon atoms within each homologous series of aldehydes, ketones, alcohols and esters. Saturation with sodium sulfate increased the partial pressure of volatiles from 12 to 20 times. The partial heat of vaporization of volatiles in paraffin oil decreased with increasing temperature and was appreciably smaller than that of the pure compound at its boiling point. These observations may be utilized in quantifying food volatiles in operations involving extraction and gas stripping prior to analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1968.tb03659.x
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  • 2
    Electronic Resource
    Electronic Resource
    EFFECTS OF TEMPERATURE, pH AND RETENTION TIME ON THE BIODEGRADATION OF TOMATO WASTE IN TANK-TYPE REACTORS (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Effects of temperature, pH and retention time on the biodegradation of tomato waste were studied in a continuous tank-type system. The data indicated that under the experimental conditions used there was a two-component substrate complex in the tomato waste. The first comprised approximately two-thirds of the total waste load and was optimally degraded at 40°C in about 4 hr. The second substrate complex contributed about 20% of the waste load and was optimally degraded at 35°C. The remaining portion was not degraded during the 12-hr retention time investigated. It was also shown that maintaining an optimal pH 7 by monitoring and adjusting only the influent resulted in an excessive basic condition. The use of controlled reactor tanks in a sequential degradation system or in conjunction with present day treatment systems is suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb00613.x
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  • 3
    Electronic Resource
    Electronic Resource
    A THERMAL CONTROLLER FOR THE SHORT COD DETERMINATION (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An instrument, the Short COD Thermal Controller, was developed to make the short COD test faster, safer and more precise through automatic control of heating and agitation. The instrument was used to analyze a glucose solution, simulated tomato wastes and corn processing wastes. Glucose solutions were found to have a coefficient of variation of 1.4% compared to the 20% reported for the BOD and the 8% for the long COD. The coefficient of variation for the tomato waste was 2.7%, and on the corn processing waste the instrument was able to give more reproducible results than the inherent variability found in preparing the replicate waste samples. The new instrument reduced both the time required to analyze a large number of samples and the hazards to technicians.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1977.tb12616.x
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  • 4
    Electronic Resource
    Electronic Resource
    Variation and Speciation in the Fusaria (1975)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 13 (1975), S. 71-82 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.13.090175.000443
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  • 5
    Electronic Resource
    Electronic Resource
    Fumonisins, Mycotoxins Produced by Fusarium Species: Biology, Chemistry, and Significance (1993)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 31 (1993), S. 233-252 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.31.090193.001313
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  • 6
    Electronic Resource
    Electronic Resource
    Histopathology of Plants Infected with Vascular Bacterial Pathogens (1970)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 8 (1970), S. 259-280 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.08.090170.001355
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  • 7
    Electronic Resource
    Electronic Resource
    Processing Retort Pouches in Conventional Sterilizers (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A cylindrical rack was designed to hold four 130 mm × 178 mm retortable pouches. The outer dimensions of the cylinder were 157 mm × 178 mm, identical to a No. 10 can. These dimensions permitted pouch processing in traditional sterilizers that accept cans of this size. Dimensional considerations, pouch orientation, and heat distribution were tested in 100% steam. This racking method was found to provide equal heat treatments to all pouches regardless of horizontal, vertical or rolling orientations. These results suggest the use of various conventional sterilizers for pouch processing with little or no modification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb11084.x
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  • 8
    Electronic Resource
    Electronic Resource
    Chemical Detection of Mold in Processed Foods (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Alternaria alternata, A. solani, Colletotrichum coccodes, Fusarium oxysporum, Geotrichum candidum, Rhizopus stolonifer and Drosophila flies were added to tomato and fruit purees and nectars at 0.1 - 10 mg (dry weight)/2g sample, hydrolyzed at 121°C in potassium hydroxide (KOH) and analyzed colorimetrically for glucosamine. Glucosamine varied with product, quantity of mycelium, hydrolysis time, KOH concentration, age (older cultures gave highest values), and mold species (R. stolonifer gave maximum and G. candidum, minimum values). When processed foods spiked with molds were analyzed, the mold concentration was linearly correlated to glucosamine but not to Howard mold count. Drosophila were barely detectable in hydrolyzed foods. Hydrolysis may be the critical step in this procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb12439.x
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of Thermal Processing and Agitation in 100% Steam on the Seal Strength of Retortable Pouches (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Retortable pouch seals were tested before, during and after rotary and still processing in 100% steam. Evaluation included tensile, compression, and static load testing. As expected, thermal processing had an effect on the pouch material, but rotary agitation did not affect seal strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb14836.x
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  • 10
    Electronic Resource
    Electronic Resource
    IMPROVING THE EFFICIENCY OF CHEMICAL SANITIZERS USED IN BULK STORAGE TANKS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The cleaning-sanitizer sequence which is now being successfully used on aseptic bulk tanks for storage of acid products was evaluated for future use with low acid foods. The AOAC Sporicidal Test utilizing unglazed porcelain penicylinders and cylinders coated with the bulk tanks lining material was used to appraise the cleaning and sanitizing sequence. Various modifications of the original standard cleaning sequence were also tested. Spores dried on the two carriers displayed dramatically different destructive rates. Further investigation is considered necessary to completely evaluate various pretreatments for low acid food storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb10054.x
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