Abstract

HIDALGO, Katia; BOCOURT, R.; MORA, L.  and  ALBELO, A.. Physical-chemical and microbiological characterization of the concentrated vinasse from alcohol distillery. Cuban J. Agric. Sci. [online]. 2017, vol.51, n.4, pp.459-470. ISSN 0864-0408.

The concentrated alcohol distillery vinasse was studied for its possible use as an additive in animal feeding. Samples from different deposits were selected and the chemical, physical, microbiological composition and stability (pH and specific weight) were analyzed. In each deposit, samples were taken in triplicate in sterile 25 mL bottles and the sampling was carried out for five months. For the stability study, which lasted twelve months, the vinasse stored in the laboratory was used. The results show that concentrated vinasse has a low pH value and approximately 30 % of dry matter, being higher than those produced before in Cuba. With the microbiological study, the vinasse safety was showed, since no E. Coli or fungi were reported. The stability analysis showed that the vinasses did not suffer transformations in the analyzed indicators (pH 4.2 to 5.21 and specific weight 1.02 to 1.14 g / cm3) during the five months. With the results obtained in the study, the potentiality of concentrated vinasse as an additive in animal feeding is showed.

Keywords : vinasse; composition; dry matter; stability; additive.

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