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Influence of gamma radiation on microbiological parameters of the ethanolic fermentation of sugar-cane must |
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| Authors: | A. R. Alcarde J. M. M. Walder J. Horii |
| Affiliation: | a Department of Agroindustry, Foods and Nutrition, Sector of Sugar and Alcohol, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, Cep 13418-900, Piracicaba, SP, Brazil b Laboratory of Food Irradiation and Radioentomology, Center for Nuclear Energy on Agriculture, University of São Paulo, Av. Centenário 303, P.O. Box 96, Cep 13400-970, Piracicaba, SP, Brazil |
| Abstract: | The influence of gamma radiation on reducing the population of some bacteria Bacillus and Lactobacillus that usually contaminate the sugar-cane must and its effects on acidity of the medium and viability of the yeast during fermentation were evaluated. The treatment with gamma radiation reduced the bacterial load of the sugar-cane must. Consequently, the volatile acidity produced during the fermentation of the must decreased and the viability of the yeast afterwards added increased. |
| Keywords: | Bacteria Sugar-cane must Gamma radiation Inactivation Fermentative yeast |
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