Academic Journal
Fungi and mycotoxins during conventional and improved postharvest processing and storage of local rice in Nigeria.
| Τίτλος: | Fungi and mycotoxins during conventional and improved postharvest processing and storage of local rice in Nigeria. |
|---|---|
| Συγγραφείς: | Oyedele OA; Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria.; Westerdijk Fungal Biodiversity Institute, Uppsalalaan, 3584 CT, Utrecht, The Netherlands., Akinyemi MO; Unit for Environmental Science and Management, Potchefstroom Campus, North-West University, Potchefstroom, 2531, Republic of South Africa., Sulyok M; Department of Agricultural Sciences, Institute of Bioanalytics and Agro-Metabolomics, BOKU University, Konrad Lorenz Str. 20, Tulln, 3430, Austria., Krska R; Department of Agricultural Sciences, Institute of Bioanalytics and Agro-Metabolomics, BOKU University, Konrad Lorenz Str. 20, Tulln, 3430, Austria.; Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, University Road, Belfast, Northern Ireland, BT7 1NN, UK., Houbraken J; Westerdijk Fungal Biodiversity Institute, Uppsalalaan, 3584 CT, Utrecht, The Netherlands., Ezekiel CN; Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria. chaugez@gmail.com.; Department of Agricultural Sciences, Institute of Bioanalytics and Agro-Metabolomics, BOKU University, Konrad Lorenz Str. 20, Tulln, 3430, Austria. chaugez@gmail.com. |
| Πηγή: | Mycotoxin research [Mycotoxin Res] 2026 Oct 06; Vol. 42 (4). Date of Electronic Publication: 2026 Oct 06. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Springer-Verlag Berlin Country of Publication: Germany NLM ID: 8807334 Publication Model: Electronic Cited Medium: Internet ISSN: 1867-1632 (Electronic) Linking ISSN: 01787888 NLM ISO Abbreviation: Mycotoxin Res Subsets: MEDLINE |
| Imprint Name(s): | Publication: Heidelberg : Springer-Verlag Berlin Original Publication: Mainz, Federal Republic of Germany : Hans W. Schmidt, 1985- |
| Ιατρικοί όροι (MeSH): | Mycotoxins*/analysis , Oryza*/microbiology , Oryza*/chemistry , Food Contamination*/analysis , Fungi*/isolation & purification , Fungi*/classification , Food Handling*/methods , Food Storage*, Nigeria ; Tandem Mass Spectrometry ; Chromatography, Liquid ; Food Microbiology |
| Περίληψη: | This study applied a polyphasic characterization approach and LC-MS/MS analysis to elucidate fungal and mycotoxin contamination dynamics during conventional (CPRP) and improved (IPRP) postharvest processing and a 90-day storage of rice in Nigeria. Three hundred and twenty-five fungal isolates belonging to 21 genera (10 moulds, one crust fungus, 10 yeasts) and 54 species were recovered from rice across both processing chains. The CPRP chain had greater diversity of fungal genera compared to the IPRP chain. Aspergillus predominated both processing chains while yeasts occurred only in the CPRP chain. Species belonging to Aspergillus sections Aspergillus, Candidi, Flavi and Nidulantes, and Penicillium section Citrina predominated in stored rice in the two processing chains. A total of 106 extrolites including several uncommon extrolites and potential species markers were identified in agar cultures of 38 strains from 19 mould species. Fifteen mycotoxins were detected in rice along the processing and storage chains. Processing of rice in the IPRP chain and hermetic storage for 90 days reduced total aflatoxins by 9% compared to non-reduction in CPRP chain. Conventionally processed and stored rice in jute bags after 90 days recorded at least twice higher percentage reductions of total fumonisin, nivalenol and tenuazonic acid compared to hermetically stored rice from the IPRP chain. However, citrinin+dihydrocitrinone levels in rice from the two storage types increased progressively during the 90-day storage period. This study highlights the critical control points in the two rice process chains and provides insights into possible mycotoxin control approaches along the chain including in storage. (© 2026. The Author(s).) |
| Competing Interests: | Declarations. Competing interests: The authors declare no competing interests. |
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| Contributed Indexing: | Keywords: Aflatoxin; Food processing; Food safety; Hermetic storage; Mould; Secondary metabolites |
| Substance Nomenclature: | 0 (Mycotoxins) |
| Entry Date(s): | Date Created: 20261006 Date Completed: 20261006 Latest Revision: 20261009 |
| Update Code: | 20261009 |
| PubMed Central ID: | PMC13642406 |
| DOI: | 10.1007/s12550-026-00683-9 |
| PMID: | 42837051 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1867-1632 |
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| DOI: | 10.1007/s12550-026-00683-9 |