Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study
One of the approaches for reducing exposure to mycotoxins is to lessen their bioavailability by applying nanocomposite adsorbents. Magnetic graphene oxide (MGO) is a new class of nanostructured multifunctional nanocomposite materials, which play a vital role as an adsorbent. The primary aim of this...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Multidisciplinary Digital Publishing Institute
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/96834/1/ABSTRACT.pdf |
| _version_ | 1825937771745771520 |
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| author | Pirouz, Atena Abbasi Selamat, Jinap Sukor, Rashidah Jambari, Nuzul Noorahya |
| author_facet | Pirouz, Atena Abbasi Selamat, Jinap Sukor, Rashidah Jambari, Nuzul Noorahya |
| author_sort | Pirouz, Atena Abbasi |
| collection | UPM |
| description | One of the approaches for reducing exposure to mycotoxins is to lessen their bioavailability by applying nanocomposite adsorbents. Magnetic graphene oxide (MGO) is a new class of nanostructured multifunctional nanocomposite materials, which play a vital role as an adsorbent. The primary aim of this study is to apply response surface methodology (RSM) to optimize the influence of pH within the range of 3 to 7, time (3–7 h), and temperature (30–50 °C), on the simultaneous detoxification of aflatoxin B1 (AFB1) and ochratoxin A (OTA) by using MGO. The optimal condition was obtained at pH 5, 5 h, and 40 °C. Further investigation of the adsorption evaluation was carried out by studying different parameters, such as the influence of contact time, initial mycotoxins concentration, and temperature. According to the experimental data, it can be concluded that the pseudo-second-order kinetic model and the Freundlich isotherm fitted well. The capability of adsorption for the Freundlich model was calculated as 153 and 95 ng/g for AFB1 and OTA, respectively. The thermodynamic study showed that the sorption studies act spontaneously as an exothermic process. These findings suggest that the application of MGO as a nanocomposite is of great significance for the detoxification of mycotoxins. |
| first_indexed | 2024-03-06T11:04:35Z |
| format | Article |
| id | upm.eprints-96834 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T11:04:35Z |
| publishDate | 2021 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | dspace |
| spelling | upm.eprints-968342022-12-01T02:23:36Z http://psasir.upm.edu.my/id/eprint/96834/ Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study Pirouz, Atena Abbasi Selamat, Jinap Sukor, Rashidah Jambari, Nuzul Noorahya One of the approaches for reducing exposure to mycotoxins is to lessen their bioavailability by applying nanocomposite adsorbents. Magnetic graphene oxide (MGO) is a new class of nanostructured multifunctional nanocomposite materials, which play a vital role as an adsorbent. The primary aim of this study is to apply response surface methodology (RSM) to optimize the influence of pH within the range of 3 to 7, time (3–7 h), and temperature (30–50 °C), on the simultaneous detoxification of aflatoxin B1 (AFB1) and ochratoxin A (OTA) by using MGO. The optimal condition was obtained at pH 5, 5 h, and 40 °C. Further investigation of the adsorption evaluation was carried out by studying different parameters, such as the influence of contact time, initial mycotoxins concentration, and temperature. According to the experimental data, it can be concluded that the pseudo-second-order kinetic model and the Freundlich isotherm fitted well. The capability of adsorption for the Freundlich model was calculated as 153 and 95 ng/g for AFB1 and OTA, respectively. The thermodynamic study showed that the sorption studies act spontaneously as an exothermic process. These findings suggest that the application of MGO as a nanocomposite is of great significance for the detoxification of mycotoxins. Multidisciplinary Digital Publishing Institute 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/96834/1/ABSTRACT.pdf Pirouz, Atena Abbasi and Selamat, Jinap and Sukor, Rashidah and Jambari, Nuzul Noorahya (2021) Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study. Coatings, 11 (11). art. no. 1346. pp. 1-15. ISSN 2079-6412 https://www.mdpi.com/2079-6412/11/11/1346 10.3390/coatings11111346 |
| spellingShingle | Pirouz, Atena Abbasi Selamat, Jinap Sukor, Rashidah Jambari, Nuzul Noorahya Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title | Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title_full | Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title_fullStr | Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title_full_unstemmed | Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title_short | Effective detoxification of Aflatoxin B1 and Ochratoxin A using magnetic graphene oxide nanocomposite: isotherm and kinetic study |
| title_sort | effective detoxification of aflatoxin b1 and ochratoxin a using magnetic graphene oxide nanocomposite isotherm and kinetic study |
| url | http://psasir.upm.edu.my/id/eprint/96834/1/ABSTRACT.pdf |
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