The production of ochratoxin A and citrinin in barley

Journal of the Science of Food and Agriculture - Tập 35 Số 4 - Trang 395-400 - 1984
A.P. Damoglou1, Gerard A. Downey1, Wesley Shannon1
1Agricultural and Food Bacteriology Research Division, Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX, Northern Ireland

Tóm tắt

Abstract

The production of ochratoxin A by Aspergillus ochraceus and of ochratoxin A and citrinin by Penicillium viridicatum growing on previously sterilised barley for 200 days at 5, 10 and 20°C and a water activity of 0.85 is reported. A. ochraceus did not grow at 5°C, multiplied slowly at 10°C but did not produce toxin. At 20°C the organism multiplied more quickly and produced ochratoxin after 19 days, which slowly disappeared over the next 150 days. P. viridicatum grew slowly at 5°C but did not produce any toxin. It multiplied at 10°C and produced ochratoxin A which was only detectable during the period from 100 to 150 days. At 20°C both ochratoxin A and citrinin were produced. Ochratoxin A was detected after 10 days and was still present after 240 days, whereas citrinin was produced in large quantities between 118 and 129 days and then rapidly disappeared.

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Tài liệu tham khảo

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Thông tin xuất bản

Journal of the Science of Food and Agriculture

Tập 35 Số 4

395-400

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