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Journal of Crop Protection، جلد ۸، شماره ۴، صفحات ۴۴۱-۴۴۸
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عنوان انگلیسی Reduction of aflatoxin production by exposing Aspergillus flavus to CO2
چکیده انگلیسی مقاله Aspergillus flavus is a saprophytic fungus contaminating different food and nut products by aflatoxin which is a major problem worldwide. Modified atmosphere packaging (MAP) could be an effective method for control of saprophytic fungi and their toxins and secondary metabolites production. This study gives the consequences of fungal isolates growing under MAP condition on potato dextrose agar (PDA). Two isolates of A. flavus (A42 and CHAO50) were packed under 100% CO2, 100% O2 and vacuum conditions. The mycelial growth of fungal isolates on PDA was controlled up to 80% with CO2 treatment. Under the vacuum condition, mycelial growth of the isolates was inhibited up to 30%, while 100% oxygen had no inhibition on mycelial growth. Examination of isolates A42 and CHAO50 under UV light showed that both isolates produced yellow pigments on aflatoxin producing ability (APA) medium after 10 days. The levels of aflatoxin B1, B2, G1, G2 and total aflatoxin were analyzed chromatographically. The results revealed that the highest concentration of total aflatoxin was produced by fungal isolates grown in an atmosphere of 100% O2, while the level of aflatoxins was significantly reduced in 100% CO2.
کلیدواژه‌های انگلیسی مقاله Keywords HPLC,Modified atmosphere,Aflatoxin,vacuum condition
نویسندگان مقاله Zohre Mahbobinejhad |
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Tehran, Iran.

Heshmatolah Aminian |
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Tehran, Iran.

Leila Ebrahimi |
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Tehran, Iran.

Kourosh Vahdati |
Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran.

نشانی اینترنتی https://jcp.modares.ac.ir/article_1448_9679bc8f79e374d7743a2fefaba6b950.pdf
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