Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/46500
Title: Effect of in-package gas composition on growth and aflatoxin production of Aspergillus flavus in culture medium and red pepper
Authors: Ayranci, Ufuk Gokce
Karaca, Hakan
Keywords: Aflatoxin
Gas atmosphere
pH
PDA
Red pepper
Dried products
Mycotoxin Production
Potassium Sorbate
Parasiticus
Fungi
Contamination
Prevention
Spoilage
Publisher: Elsevier
Abstract: In this study, the effect of in-package gas composition on growth and aflatoxin production of toxigenic Aspergillus flavus was investigated. For this purpose, semi-dried red pepper samples and potato dextrose agar media with different pH values (3.5, 5.6, 7.0 and 9.0) were inoculated with A. flavus and packaged under different gas atmospheres (air, 100% N-2, 70% N-2 + 30% CO2 and 100% CO2). The growth of the fungus was monitored during storage at 25 degrees C for 8 days and the aflatoxin levels produced were determined at the end of storage. The highest growth rate was observed in the medium at pH 9.0 and the highest toxin production was in the medium at pH 5.6. Slowdowns up to 55.6% and 28.0% in the growth of A. flavus in the culture medium and red pepper were observed when packaging under 100% N-2 was employed. It was found that 70% N-2 + 30% CO2 atmosphere was more effective than 100% N-2 in inhibiting the growth of A. flavus in red peppers; however, the difference between the aflatoxin levels produced in the samples packaged under these gas compositions was not significant (p > 0.05). CO2 concentrations higher than 90% in the package were quite effective against A. flavus resulting in 60% and 99% reductions in the growth and aflatoxin production of the fungus in red pepper.
URI: https://doi.org/10.1016/j.ijfoodmicro.2021.109368
https://hdl.handle.net/11499/46500
ISSN: 0168-1605
1879-3460
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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