GEOLOGICAL ORIGIN OF BENTONITE: ITS ROLE IN THE SELECTION OF POTENTIAL BINDERS FOR AFLATOXIN ADSORPTION

Autor: D'ASCANIO V., GRECO D., MENICAGLI E., LOGRIECO A.F., CATUCCI L., AVANTAGGIATO G
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: MycoTWIN-MycoKey Conference, pp. 188, Bari, 9-12/11/2021
info:cnr-pdr/source/autori:D'ASCANIO V., GRECO D., MENICAGLI E., LOGRIECO A.F., CATUCCI L., and AVANTAGGIATO G/congresso_nome:MycoTWIN-MycoKey Conference/congresso_luogo:Bari/congresso_data:9-12%2F11%2F2021/anno:2021/pagina_da:188/pagina_a:/intervallo_pagine:188
DOI: 10.48257/ACBA01
Popis: Since 2013, bentonite in the form of dioctahedral smectite is an additive authorised in the EU as a substance for the reduction of the contamination of feed by aflatoxins. Several studies indicate a big difference in the effectiveness of bentonites in sequestering aflatoxins. A clear correlation between mineralogical and physicochemical properties of bentonites and aflatoxin adsorption has not been well established. In this study, the most critical mineralogical, chemical, and physical properties that affect aflatoxin adsorption by bentonite were evaluated. Bentonite samples (29), mined from different locations around the world, were analyzed against the published selection criteria for aflatoxin adsorbents: mycotoxin adsorption parameters (maximum adsorption capacity and affinity) determined by the method of adsorption isotherms; pH; cation exchange capacity; particle size distribution; mineralogical/structural compositions; swell index and viscosity. A correlation between geological origin and AFB1 adsorption capacity was found (p
Databáze: OpenAIRE