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Malolactic fermentation induced by silica‐alginate encapsulated Oenococcus oeni with different inoculation regimes
- Source :
- Australian Journal of Grape and Wine Research. 25:165-172
- Publication Year :
- 2018
- Publisher :
- Hindawi Limited, 2018.
-
Abstract
- Background and Aims The encapsulation of Oenococcus oeni into silica‐alginate (Si‐ALG) gels has been previously confirmed as a suitable strategy for a successful malolactic fermentation (MLF). The aim of this study was to evaluate the effect of two inoculation strategies (simultaneous vs sequential) on the performance of MLF with encapsulated O. oeni under winemaking conditions. Methods and Results Sequential inoculation of Si‐ALG biocapsules successfully achieved a complete MLF in high ethanol wines, while free and ALG encapsulated bacteria failed. A simultaneous inoculation with Si‐ALG biocapsules provided a significant reduction in time to complete MLF in high sugar and low pH musts. The regime of inoculation did not modify the chemical composition of the wines. Conclusions Either sequential or simultaneous inoculation of Si‐ALG biocapsules constitute an effective alternative to free bacteria to undertake MLF under stressful conditions. Significance of the Study Effective winemaking protocols based on sequential or simultaneous induction of MLF with inoculated Si‐ALG encapsulated O. oeni have been accomplished. These are of potential interest for winemaking in both warm and cool regions.
- Subjects :
- 0106 biological sciences
biology
Inoculation
Chemistry
04 agricultural and veterinary sciences
Horticulture
biology.organism_classification
01 natural sciences
Sequential inoculation
Malolactic fermentation
High sugar
Food science
Encapsulated bacteria
0405 other agricultural sciences
Bacteria
010606 plant biology & botany
040502 food science
Oenococcus oeni
Winemaking
Subjects
Details
- ISSN :
- 17550238 and 13227130
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Australian Journal of Grape and Wine Research
- Accession number :
- edsair.doi...........7b87adb93a22c85538a5ccd276036858