Determination of aflatoxins in animal feeds by HPLC with multifunctional column clean-up
A reversed-phase HPLC method with fluorescence detection for the determination of the aflatoxins B1, B2, G1 and G2 in 42 animal feeds, comprising corn (16), soya bean meal (8), mixed meal (13), sunflower, wheat, canola, palm kernel, copra meals (1 each) was carried out. The samples were first extrac...
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| Published in | Food chemistry Vol. 118; no. 3; pp. 882 - 886 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier Ltd
01.02.2010
[Amsterdam]: Elsevier Science |
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| Online Access | Get full text |
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| Abstract | A reversed-phase HPLC method with fluorescence detection for the determination of the aflatoxins B1, B2, G1 and G2 in 42 animal feeds, comprising corn (16), soya bean meal (8), mixed meal (13), sunflower, wheat, canola, palm kernel, copra meals (1 each) was carried out. The samples were first extracted using acetonitrile:water (9:1), and was further cleaned-up using a multifunctional column. Optimum conditions for the extraction and chromatographic separation were investigated. By adopting an isocratic chromatographic system using a mobile phase comprising acetonitrile:methanol:water (8:27:65, v/v/v), the separation of the four aflatoxins was possible within 30
min. Recoveries for aflatoxins B1, B2, G1 and G2 were 98
±
0.7%, 95
±
1.0%, 94
±
3.6% and 97
±
4.3%, respectively. The results show that eight samples (19%) were contaminated with aflatoxins, ranging from 6.5 to 101.9
ng
g
−1. Total aflatoxin levels in three samples exceed the legal limits of many countries of 20
ng
g
−1. |
|---|---|
| AbstractList | A reversed-phase HPLC method with fluorescence detection for the determination of the aflatoxins B1, B2, G1 and G2 in 42 animal feeds, comprising corn (16), soya bean meal (8), mixed meal (13), sunflower, wheat, canola, palm kernel, copra meals (1 each) was carried out. The samples were first extracted using acetonitrile:water (9:1), and was further cleaned-up using a multifunctional column. Optimum conditions for the extraction and chromatographic separation were investigated. By adopting an isocratic chromatographic system using a mobile phase comprising acetonitrile:methanol:water (8:27:65, v/v/v), the separation of the four aflatoxins was possible within 30
min. Recoveries for aflatoxins B1, B2, G1 and G2 were 98
±
0.7%, 95
±
1.0%, 94
±
3.6% and 97
±
4.3%, respectively. The results show that eight samples (19%) were contaminated with aflatoxins, ranging from 6.5 to 101.9
ng
g
−1. Total aflatoxin levels in three samples exceed the legal limits of many countries of 20
ng
g
−1. A reversed-phase HPLC method with fluorescence detection for the determination of the aflatoxins B1, B2, G1 and G2 in 42 animal feeds, comprising corn (16), soya bean meal (8), mixed meal (13), sunflower, wheat, canola, palm kernel, copra meals (1 each) was carried out. The samples were first extracted using acetonitrile:water (9:1), and was further cleaned-up using a multifunctional column. Optimum conditions for the extraction and chromatographic separation were investigated. By adopting an isocratic chromatographic system using a mobile phase comprising acetonitrile:methanol:water (8:27:65, v/v/v), the separation of the four aflatoxins was possible within 30min. Recoveries for aflatoxins B1, B2, G1 and G2 were 98±0.7%, 95±1.0%, 94±3.6% and 97±4.3%, respectively. The results show that eight samples (19%) were contaminated with aflatoxins, ranging from 6.5 to 101.9ngg⁻¹. Total aflatoxin levels in three samples exceed the legal limits of many countries of 20ngg⁻¹. |
| Author | Hashim, Nor Hasani Khayoon, Wejdan Shakir Saad, Bahruddin Salleh, Muhammad Idiris Yan, Chew Bee Salleh, Baharuddin Ali, Abdussalam Salhin Mohamed |
| Author_xml | – sequence: 1 givenname: Wejdan Shakir surname: Khayoon fullname: Khayoon, Wejdan Shakir organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 2 givenname: Bahruddin surname: Saad fullname: Saad, Bahruddin email: bahrud@usm.my organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 3 givenname: Chew Bee surname: Yan fullname: Yan, Chew Bee organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 4 givenname: Nor Hasani surname: Hashim fullname: Hashim, Nor Hasani organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 5 givenname: Abdussalam Salhin Mohamed surname: Ali fullname: Ali, Abdussalam Salhin Mohamed organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 6 givenname: Muhammad Idiris surname: Salleh fullname: Salleh, Muhammad Idiris organization: School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia – sequence: 7 givenname: Baharuddin surname: Salleh fullname: Salleh, Baharuddin organization: School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia |
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| Title | Determination of aflatoxins in animal feeds by HPLC with multifunctional column clean-up |
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