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https://hdl.handle.net/1822/3824| Título: | Fungi and ochratoxin A detected in healthy grapes for wine production |
| Autor(es): | Serra, Rita Mendonça, Carla Venâncio, Armando |
| Palavras-chave: | A. carbonarius Aspergillus Fungi Grapes Mycotoxins Ochratoxin A Penicillium Wine |
| Data: | 2006 |
| Editora: | Blackwell Publishing |
| Revista: | Letters in Applied Microbiology |
| Citação: | "Letters in applied microbiology". ISSN 0266-8254. 42 (2006) 42-47. |
| Resumo(s): | Aims: The mycoflora of healthy grapes (i.e. without visible symptoms of rot) for wine production in Portuguese winemaking regions was assessed and its potential for ochratoxin A (OTA) production evaluated. The OTA content of grapes was also determined. Methods and Results: A total of 386 fungal strains were isolated by plating methods. The most frequent genera found in grapes were non-ochratoxigenic species: Cladosporium (28%), Penicillium (24%), Botrytis (13%) and Aspergillus (9%). Two OTA-producing strains were isolated, belonging to the species Aspergillus carbonarius and Aspergillus ochraceus. OTA was detected in three of four grape samples, up to 116 ng lֿ¹. Conclusions: OTA is being produced in healthy berries by Aspergillus species, namely A. carbonarius, at levels below the maximum recommended limit of 2000 ng lֿ¹ in wine. Significance and Impact of the Study: The OTA concentration detected in healthy Portuguese grapes does not represent a risk to wine regarding the legal limit established. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/3824 |
| DOI: | 10.1111/j.1472-765X.2005.01805.x |
| ISSN: | 0266-8254 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| serra_etal_2006a[1].pdf | 81,5 kB | Adobe PDF | Ver/Abrir |
