Inhibition of Aspergillus parasiticus and detoxification of aflatoxin derivatives in tomato paste by adding freeze-dried postbiotic from Lactiplantibacillus plantarum

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dc.contributor.authorTutuk, Zehra
dc.contributor.authorKaratepe, Pinar
dc.contributor.authorAkgol, Muzeyyen
dc.contributor.authorBayrak, Sinem
dc.contributor.authorVurmaz, Melike
dc.contributor.authorFidan, Serife
dc.contributor.authorHayaloglu, Ali Adnan
dc.date.accessioned2026-04-04T13:35:08Z
dc.date.available2026-04-04T13:35:08Z
dc.date.issued2026
dc.departmentİnönü Üniversitesi
dc.description.abstractIn this study, it was aimed to inhibit the Aspergillus parasiticus and detoxify the aflatoxin derivatives (B1, B2, G1, and G2) by adding the postbiotic of Lactiplantibacillus plantarum in tomato paste. The bioactive compounds in the postbiotic were also identified. The minimum inhibitory (MIC) and fungicidal concentrations (MFC) of the postbiotic were found to be 12.5 and 100 mg/mL against A. parasiticus, respectively. In addition, 10 mg of the postbiotic displayed a 16.47 mm inhibition zone. The postbiotics were added to the tomato pastes at 4, 6 and 8-fold of the MIC, and the physico-chemical, microbiological parameters, and the amount of aflatoxins were monitored during 45 days of storage at 4 degrees C. The number of A. parasiticus was found to be below the detection limit in the 8-fold concentration of the postbiotic-added tomato pastes on the 45th day (P < 0.05). Compared to untreated samples, this treatment also significantly reduced the populations of mesophilic aerobes, psychrotrophs, lactic acid bacteria, and anaerobes (P < 0.05). Importantly, the pH, color, and titratable acidity remained constant in all groups during storage (P > 0.05). In addition, the postbiotic significantly reduced the levels of aflatoxins B1, B2, G1 and G2 compared to the control in a dose-dependent manner (P < 0.05). The results revealed that the postbiotic contains various bioactive constituents, including organic, free fatty, and free amino acids, polyphenols and volatiles, and also has a strong antioxidant capacity. In conclusion, the addition of freeze-dried postbiotics to tomato paste shows strong antifungal and anti-aflatoxigenic effects without compromising physicochemical quality of the tomato paste.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK) [124 O 229]; Firat University Scientific Research Project Unit (FUBAP) [VF.24.29]
dc.description.sponsorshipThis study was summarized from the MSc thesis of the first author, Zehra Tutuk. This study was supported by The Scientific and Technological Research Council of Turkiye (TUBITAK) with project numbers 124 O 229 and Firat University Scientific Research Project Unit (FUBAP) with project number VF.24.29.
dc.identifier.doi10.1016/j.foodcont.2025.111664
dc.identifier.issn0956-7135
dc.identifier.issn1873-7129
dc.identifier.orcid0000-0002-4274-2729
dc.identifier.scopus2-s2.0-105013651402
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.foodcont.2025.111664
dc.identifier.urihttps://hdl.handle.net/11616/109621
dc.identifier.volume180
dc.identifier.wosWOS:001562487200002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofFood Control
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250329
dc.subjectTomato paste
dc.subjectLactiplantibacillus plantarum
dc.subjectPostbiotic
dc.subjectAspergillus parasiticus
dc.subjectAntifungal effect
dc.titleInhibition of Aspergillus parasiticus and detoxification of aflatoxin derivatives in tomato paste by adding freeze-dried postbiotic from Lactiplantibacillus plantarum
dc.typeArticle

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