Surival of microorganisms in stored amaranth biscuits produced from irradiated amaranth grain
1997
Hozova, B. | Dodok, L. | Valik, L. (Chemickotechnologicka Fakulta, Bratislava (Slovak Republic))
Results of the microbiological evaluation (total counts, coliforms, aerobic sporogenic bacteria, yeasts and moulds) of amaranth biscuits produced from amaranth grains irradiated by various doses of the ionizing radiation (1.5, 3 and 5 kGy) and stored six month at the room temperature (20 -25 deg C) are presented. The a sub(w) value was a supplementary parameter. Counts of microorganisms in the biscuits depended on the treatment of the grain. The share ofaerobic sporogenic microorganisms (Bacillus subtilis, B. brevis) surviving storage, especially in the samples treated with lower doses of the ionizing radiation (1.5 and 3 kGy), constituted 30 to 100 % of the total count of microorganisms. The dosage of the ionizing radiation of 5 kGy provided the maximum hygienic quality of the biscuits to the end of the 6-month storage
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