Reduction of aflatoxin production by exposing Aspergillus flavus to CO2

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Mahbobinejhad Zohre; AMINIAN HESHMATOLAH; EBRAHIMI LEILA; VAHDATI KOUROSH

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Journal: JOURNAL OF CROP PROTECTION Year:2019 | Volume:8 | Issue:4 Page(s): 441-448

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Title

Reduction of aflatoxin production by exposing Aspergillus flavus to CO2

Author(s)

Mahbobinejhad Zohre | AMINIAN HESHMATOLAH | EBRAHIMI LEILA | VAHDATI KOUROSH | Issue Writer Certificate

Keywords

HPLCQ1

modified atmosphereQ2

aflatoxinQ1

vacuum conditionQ2

Abstract

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.

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APA: Copy

Mahbobinejhad, Zohre, AMINIAN, HESHMATOLAH, EBRAHIMI, LEILA, & VAHDATI, KOUROSH. (2019). Reduction of aflatoxin production by exposing Aspergillus flavus to CO2. JOURNAL OF CROP PROTECTION, 8(4 ), 441-448. SID. https://sid.ir/paper/238921/en

Vancouver: Copy

Mahbobinejhad Zohre, AMINIAN HESHMATOLAH, EBRAHIMI LEILA, VAHDATI KOUROSH. Reduction of aflatoxin production by exposing Aspergillus flavus to CO2. JOURNAL OF CROP PROTECTION[Internet]. 2019;8(4 ):441-448. Available from: https://sid.ir/paper/238921/en

IEEE: Copy

Zohre Mahbobinejhad, HESHMATOLAH AMINIAN, LEILA EBRAHIMI, and KOUROSH VAHDATI, “Reduction of aflatoxin production by exposing Aspergillus flavus to CO2,” JOURNAL OF CROP PROTECTION, vol. 8, no. 4 , pp. 441–448, 2019, [Online]. Available: https://sid.ir/paper/238921/en

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