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Rodríguez CL, Strub C, Fontana A, Verheecke-Vaessen C, Durand N, Beugré C, Guehi T, Medina A, Schorr-Galindo S. Biocontrol activities of yeasts or lactic acid bacteria isolated from Robusta coffee against Aspergillus carbonarius growth and ochratoxin A production in vitro. Int J Food Microbiol 2024; 415:110638. [PMID: 38430685 DOI: 10.1016/j.ijfoodmicro.2024.110638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/09/2024] [Accepted: 02/21/2024] [Indexed: 03/05/2024]
Abstract
Biocontrol Agents (BCAs) can be an eco-friendly alternative to fungicides to reduce the contamination with mycotoxigenic fungi on coffee. In the present study, different strains of bacteria and yeasts were isolated from Ivorian Robusta coffee. Their ability to reduce fungal growth and Ochratoxin A (OTA) production during their confrontation against Aspergillus carbonarius was screened on solid media. Some strains were able to reduce growth and OTA production by 85 % and 90 % and were molecularly identified as two yeasts, Rhodosporidiobolus ruineniae and Meyerozyma caribbica. Subsequent tests on liquid media with A. carbonarius or solely with OTA revealed adhesion of R. ruineniae to the mycelium of A. carbonarius through Scanning Electron Microscopy, and an OTA adsorption efficiency of 50 %. For M. caribbica potential degradation of OTA after 24 h incubation was observed. Both yeasts could be potential BCAs good candidates for Ivorian Robusta coffee protection against A. carbonarius and OTA contamination.
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Affiliation(s)
- Claudia López Rodríguez
- Qualisud, Univ Montpellier, CIRAD, Institut Agro, IRD, Avignon Univ, Univ de La Réunion, Montpellier, France; Applied Mycology Group, Environment and AgriFood Theme, Cranfield University, Cranfield, UK
| | - Caroline Strub
- Qualisud, Univ Montpellier, CIRAD, Institut Agro, IRD, Avignon Univ, Univ de La Réunion, Montpellier, France.
| | - Angélique Fontana
- Qualisud, Univ Montpellier, CIRAD, Institut Agro, IRD, Avignon Univ, Univ de La Réunion, Montpellier, France
| | | | - Noël Durand
- Qualisud, Univ Montpellier, CIRAD, Institut Agro, IRD, Avignon Univ, Univ de La Réunion, Montpellier, France; CIRAD, UMR Qualisud, F-34398 Montpellier, France
| | - Corinne Beugré
- Laboratory of Microbiology and Molecular Biology, Department of Food Science and Technology, University of Nangui Abrogoua, Abidjan, Cote d'Ivoire
| | - Tagro Guehi
- Laboratory of Microbiology and Molecular Biology, Department of Food Science and Technology, University of Nangui Abrogoua, Abidjan, Cote d'Ivoire
| | - Angel Medina
- Applied Mycology Group, Environment and AgriFood Theme, Cranfield University, Cranfield, UK
| | - Sabine Schorr-Galindo
- Qualisud, Univ Montpellier, CIRAD, Institut Agro, IRD, Avignon Univ, Univ de La Réunion, Montpellier, France
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