한국균학회지 (The Korean Journal of Mycology)
- 제20권4호
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- Pages.302-308
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- 1992
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- 0253-651X(pISSN)
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- 2383-5249(eISSN)
양파에 관련된 균독소 및 균프로라에 관한 연구
Fungal Flora and Mycotoxins Associated with Onion (Allium cepa L.) in Egypt
- Zohri, A. A. (Botany Department, Faculty of Science, Assiut Univ.) ;
- Sabah, Asber M. (Botany Department, Faculty of Science, Sohag, Assiut Univ.) ;
- Abdel-Gawad, K. M. (Botany Department, Faculty of Science, Assiut Univ.)
- 발행 : 1992.12.30
초록
Seven genera and 15 species of fungi were isolated from 50 samples of then different steps of dried onion (5 samples of each step) collected from an onion factory in Sohag Governorate, Egypt, and grown on glucose-Czapek's agar (7 genera and 15 species) and 10% NaCl glucose-Czapek's (2 genera and 6 species). The average total counts of fungi were gradually decreased throughout the different steps of drying from 2090 to zero and 152 to zero colonies/g on glucose-Czapek's agar and 10% NaCl glucose-Czapek's agar media, respectively. Aspergillus was the most common genus on the two types of media used. The dominant species were Aspergillus niger, A. flavus, A. terreus, Penicillium chrysogenum and Fusarium of oxysporum on glucose-Czapek's agar and A. terreus and A. niger on 10% NaCl glucose-Czapek's agar. The chloroform extracts of different samples were tested for the presence of mycotoxins using thin layer chromatographic analysis. The results indicated that aflatoxin was present at concentrations decreased throughout the different steps of the drying from step No. 1, onion bulbs,