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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Barata, André Malfeito-Ferreira, Manuel Loureiro, Virgílio |
| Description | Country affiliation: Portugal Author Affiliation: Barata A ( Laboratório de Microbiologia, Departamento de Recursos Naturais Ambiente e Território, Centro de Botânica Aplicada à Agricultura, Instituto Superior de Agronomia, Technical University of Lisbon, Lisboa, Portugal. abbarata@isa.utl.pt) |
| Abstract | This study investigated the microbiota of sour rotten wine grapes and its impact on wine fermentations. Yeasts, lactic acid bacteria (LAB) and acetic acid bacteria (AAB) were enumerated and identified on sound and sour rot grapes during the ripening stage. The alteration of the ecological balance induced by sour rot was particularly evidenced by the unequivocal increase of yeast and AAB counts on rotten grapes, since the beginning of ripening. Yeast and AAB species diversity in rotten grape samples were much higher than those found in sound grapes. LAB populations were low detected from both healthy and sour rotten grapes. The yeast species Issatchenkia occidentalis, Zygoascus hellenicus and Zygosaccharomyces bailii and the AAB species Gluconacetobacter hansenii, Gluconacetobacter intermedius and Acetobacter malorum, were recovered from damaged grapes and resulting grape juices in the winery. Acetobacter orleaniensis and Acetobacter syzygii were only recovered from sour rotten grapes. Dekkera bruxellensis and Oenococcus oeni were only recovered after wine fermentation induced by starter inoculation, irrespective of grape health, probably originating from cellar environment. After malolactic fermentation, racking and sulphur dioxide addition the only remaining species were the yeast Trigonopsis cantarellii and Saccharomyces cerevisiae, independently of the grape health status. |
| File Format | HTM / HTML |
| ISSN | 01681605 |
| Issue Number | 3 |
| Volume Number | 154 |
| e-ISSN | 18793460 |
| Journal | International Journal of Food Microbiology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-03-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Wine Yeasts Research Support, Non-u.s. Gov't Discipline Microbiology Microbiology Vitis Isolation & Purification Molecular Sequence Data Fermentation Journal Article Plant Diseases Food Handling Discipline Nutritional Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Microbiology Safety, Risk, Reliability and Quality Food Science |
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