栄養と食糧
Online ISSN : 1883-8863
ISSN-L : 0021-5376
60Co-γ-線照射の生揚げに及ぼす影響 (XI)
異臭と2-TBA法との関係
浦上 智子高松 元子古橋 申行植村 悌二
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1965 年 18 巻 4 号 p. 270-273

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The two 2-TBA methods, Jacobson and Kirkpatrick's with the use of purified n-propanol and YuSinhuber's without the use of an organic solvent, were compared for effects of irradiation doses on the press juices of both control and irradiated samples; the former method did not show an labsorbance near 530mμ but the latter showed maxima at both 430 and 530mμ. The method of Jordan and Veatch for determination of carbonyl compounds was also examined on the press juice but no sharp maximum was observed. Relations between the off odor induced by irradiation as well as the detection of deterioration on storage and absorbances at 430 and 530mμ, by Yu-Sinhuber's method, were also studied but no definite relation between the absorbances and the off odor and deterioration could be found. The 2-TBA method and alcoholic alkaline titration method were also compared for the detection of deterioration during the storage of the control sample; the latter method appeared to be more reliable at the present time.

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© 社団法人日本栄養・食糧学会
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