Abstract
Commercially produced red wines were adjusted to pH 3.0, 3.2, 3.5, 3.7, or 4.0 and examined during and after malolactic fermentation for growth of lactic acid bacteria and changes in the concentrations of carbohydrates, organic acids, amino acids, and acetaldehyde. With one exception, Leuconostoc oenos conducted the malolactic fermentation in all wines and was the only species to occur in wines at pH below 3.5. Malolactic fermentation by L. oenos was accompanied by degradation of malic, citric, and fumaric acids and production of lactic and acetic acids. The concentrations of arginine, histidine, and acetaldehyde also decreased at this stage, but the behavior of hexose and pentose sugars was complicated by other factors. Pediococcus parvulus conducted the malolactic fermentation in one wine containing 72 mg of total sulfur dioxide per liter. Fumaric and citric acids were not degraded during this malolactic fermentation, but hexose sugars were metabolized. P. parvulus and species of Lactobacillus grew after malolactic fermentation in wines with pH adjusted above 3.5. This growth was accompanied by the utilization of wine sugars and production of lactic and acetic acids.
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Selected References
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- Fleet G. H., Lafon-Lafourcade S., Ribéreau-Gayon P. Evolution of yeasts and lactic Acid bacteria during fermentation and storage of bordeaux wines. Appl Environ Microbiol. 1984 Nov;48(5):1034–1038. doi: 10.1128/aem.48.5.1034-1038.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fornachon J. C., Lloyd B. Bacterial production of diacetyl and acetoin in wine. J Sci Food Agric. 1965 Dec;16(12):710–716. doi: 10.1002/jsfa.2740161204. [DOI] [PubMed] [Google Scholar]
- Kempler G. M. Production of flavor compounds by microorganisms. Adv Appl Microbiol. 1983;29:29–51. doi: 10.1016/s0065-2164(08)70353-8. [DOI] [PubMed] [Google Scholar]
- Lafon-Lafourcade S., Carre E., Ribéreau-Gayon P. Occurrence of lactic Acid bacteria during the different stages of vinification and conservation of wines. Appl Environ Microbiol. 1983 Oct;46(4):874–880. doi: 10.1128/aem.46.4.874-880.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Law B. A., Kolstad J. Proteolytic systems in lactic acid bacteria. Antonie Van Leeuwenhoek. 1983 Sep;49(3):225–245. doi: 10.1007/BF00399500. [DOI] [PubMed] [Google Scholar]
- Pilone G. J., Kunkee R. E., Webb A. D. Chemical characterization of wines fermented with various malo-lactic bacteria. Appl Microbiol. 1966 Jul;14(4):608–615. doi: 10.1128/am.14.4.608-615.1966. [DOI] [PMC free article] [PubMed] [Google Scholar]