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  • 1
    Electronic Resource
    Electronic Resource
    A method of testing for irradiation of poultry (1988)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 23 (1988), S. 0 
    Details
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A method for the detection of irradiated poultry is described. For chicken, free radicals produced by ionizing radiation within the hard crystalline matrix of bone can be detected by the technique of electron spin resonance (ESR) spectroscopy. The ESR signal increases linearly with dose over the likely commercial range and is stable over the probable shelf-life under likely storage conditions. The lower limit of detection is equivalent to a radiation dose of 50 Gy. The test appears equally applicable to turkey, duck and goose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1988.tb01048.x
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  • 2
    Electronic Resource
    Electronic Resource
    Co-trial on ESR identification and estimates of γ-ray and electron absorbed doses given to meat and bones (1990)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 25 (1990), S. 0 
    Details
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A multinational co-trial was organized to determine if electron spin resonance (ESR) spectroscopy could be used to monitor foods exposed to ionizing radiation. The bones of chicken legs, frog legs and pork rib bones were prepared and distributed as unknowns to the participating laboratories. In every instance, non-irradiated bones were correctly identified as such. Moreover, irradiated bones were not only correctly identified, but relatively good estimates of the absorbed dose were obtained. An intercomparison of the different approaches used by each laboratory is discussed, and recommendations for future trials are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1990.tb01129.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    PHA and lymphocyte membrane fluidity (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 827-828 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BARNETT et al.1 reported that mitogenic lectins induce changes in the fluidity of lymphocyte membranes, which can be detected by means of the spin label electron spin resonance (ESR) technique. This finding, if substantiated, would be of great importance in understanding the processes leading to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/257827d0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    ESR detection of irradiated food (1988)
    [s.l.] : Nature Publishing Group
    Nature 334 (1988), S. 387-387 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-A wide range of methods for the detection of irradiated food1 is currently under investigation, as it is unlikely that one method will be applicable to all foodstuffs. At present, only thermolumines-cence2 and electron spin resonance (ESR)3 are well developed. When applied to irradiated seeds ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/334387a0
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  • 5
    Electronic Resource
    Electronic Resource
    Free Radical Reactions modify Cellular Damage (1969)
    [s.l.] : Nature Publishing Group
    Nature 221 (1969), S. 1245-1246 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Whole spores of Osmunda regalis were used for biological experiments and their cell contents, obtained by water extraction, were used for physical measurements. Samples were dried over P2O5 in vacuo. The effects of drying, pressure changes and gas treatments were checked by controls. ESR ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2211245b0
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  • 6
    Electronic Resource
    Electronic Resource
    Effects of storage conditions on survival and free radical populations in dried irradiated spores ofosmunda regalis (1973)
    Springer
    Radiation and environmental biophysics 10 (1973), S. 79-88 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Summary Spores of the fernOsmunda regalis were irradiated and stored for 8 weeks in N2, NO, H2S and O2. They were examined at increasing times after irradiation using both e.s.r. and survival techniques. A synergistic, damaging effect of O2 and radiation was observed on storage. In contrast to the positive correlation of free radical changes with post-irradiation oxygen damage in short term experiments, damage observed on prolonged storage in O2 cannot be correlated with the observed radical changes. It is concluded that the mechanisms by which O2 acts shortly after irradiation and on storage are different. The slow decay of radiation-produced radicals in spores irradiated and stored in N2 was found to have no influence on the extent of radiobiological damage, which was unchanged with time. However, the e.s.r. results indicate a slow thermal annealment of radicals which were thought to be thermally stable and which have been correlated with precursors of post-irradiation oxygen damage. The anoxic component of radiobiological damage in spores irradiated in NO or H2S appeared to be unaffected by the extensive decay of radiation-produced radicals occurring on storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01189914
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    Paper (German National Licenses)
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