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Effect of spiked soils with aflatoxin on its sorption and bioavailability [electronic resource]

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Abo Hagger, Amel A. A

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Language: English Summary language: Arabic Description: p.55-62Other title:

تأثير الاراضى الملوثة معمليا بالأفلاتوكسين على الامتصاص والإتاحة الحيوية له [Added title page title]

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Alexandria science exchange journal, 2013 v. 34 (1) [electronic resource]:

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In: Alexandria Science Exchange Journal 2013.v.34(1)Summary: The study was conducted to elucidate the sorption and bioavailability of aflatoxins mixture (B1, B2, G1, and G2) in two soils (clayey and sandy) differed in pbysiochemical properties under (un)treated soil with manure or urea fertilizer. Sorption and greenhouse experiments were designed for this purpose. Sorption isotherms were obtained using the batch equilibrium technique. The sorption isotherms fit the Freundlich adsorption equation according to the high R2 determination coefficients. In clayey soil, there was not detected aflatoxin concentration in soil-aqueous phase which referred to high sorption of aflatoxin in soil-solid phase, and all the aflatoxin disappearance from solution was referred to sorption reaction not for biodegradation. The high content of clay fraction in this soil could be the reason for this high sorption capacity. In sandy soil, the sorption isotherm data indicated high retentian of aflatoxin in the soil.

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The study was conducted to elucidate the sorption and bioavailability of aflatoxins mixture (B1, B2, G1, and G2) in two soils (clayey and sandy) differed in pbysiochemical properties under (un)treated soil with manure or urea fertilizer. Sorption and greenhouse experiments were designed for this purpose. Sorption isotherms were obtained using the batch equilibrium technique. The sorption isotherms fit the Freundlich adsorption equation according to the high R2 determination coefficients. In clayey soil, there was not detected aflatoxin concentration in soil-aqueous phase which referred to high sorption of aflatoxin in soil-solid phase, and all the aflatoxin disappearance from solution was referred to sorption reaction not for biodegradation. The high content of clay fraction in this soil could be the reason for this high sorption capacity. In sandy soil, the sorption isotherm data indicated high retentian of aflatoxin in the soil.

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