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de Lima Schlösser LM, Simões CT, Sarturi JA, da Silva CR, Laber IF, Franco DSP, Mallmann CA. Adsorption of aflatoxin B 1 by different antimycotoxin additives: bentonite, clinoptilolite, and beta-glucans extracted from yeast cell wall. Mycotoxin Res 2024; 40:111-121. [PMID: 37957461 DOI: 10.1007/s12550-023-00508-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/16/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
The present study aims to evaluate and compare antimycotoxin additives (AMAs) composed of bentonite (AMA 1), clinoptilolite (AMA 2), and beta-glucans extracted from yeast cell wall (AMA 3), with respect to their ability to bind Aflatoxin B1 (AFB1) using the isothermal models of Freundlich, Langmuir, and BET. The additives were submitted to an in vitro adsorption experiment with AFB1 (0.05-4 mg L-1), using solutions of pH 3 and pH 6, with an inclusion rate of 0.5%, and analyzed by HPLC-MS/MS. At pH 3, for the seven concentrations evaluated, AMA 1 obtained adsorption rates (99.69 to 99.98%) higher (p < 0. 05) than the other AMAs, which were from 82.97 to 88.72% (AMA 2) and from 79.43 to 89.32% (AMA 3). At pH 6, in concentrations of 1, 2, and 4 mg L-1 of AFB1, AMA 1 obtained higher (p < 0.05) adsorption results (97.86 to 99.86%) than AMA 2 (91.98 to 96.12%) and AMA 3 (87.56 to 93.50%). The Freundlich model best fitted the AMA 1 adsorption data. For the other additives, the Langmuir model obtained the best fit, demonstrating qm of 8.6 mg g-1 at pH 3 and 2.3 mg g-1 at pH 6 for AMA 2; and for AMA 3, with qm of 3.4 mg g-1 at pH 3 and 2.3 mg g-1 at pH 6. The isotherm models work as an effective tool to describe the adsorption process whereas the AMA adsorption capacity varies as a function of product composition, pH, and mycotoxin content.
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Affiliation(s)
| | - Cristina Tonial Simões
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, UFSM, Santa Maria, RS, 97105-900, Brazil
| | - Janine Alves Sarturi
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, UFSM, Santa Maria, RS, 97105-900, Brazil
| | - Cristiane Rosa da Silva
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, UFSM, Santa Maria, RS, 97105-900, Brazil
| | - Isadora Fabris Laber
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, UFSM, Santa Maria, RS, 97105-900, Brazil
| | - Dison Stracke Pfingsten Franco
- Department of Civil and Environmental, Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Carlos Augusto Mallmann
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, UFSM, Santa Maria, RS, 97105-900, Brazil.
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Georgin J, Franco DS, Netto MS, Gama BM, Fernandes DP, Sepulveda P, Silva LF, Meili L. Effective adsorption of harmful herbicide diuron onto novel activated carbon from Hovenia dulcis. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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