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Revista mexicana de ingeniería química
versión impresa ISSN 1665-2738
Resumen
SPANOPOULOS-HERNANDEZ, M. et al. Production of biological silage from fish waste, the smoked yellowfin tuna (Thunnus albacares) and fillet of tilapia (Oreochromis sp), for feeding aquaculture species. Rev. Mex. Ing. Quím [online]. 2010, vol.9, n.2, pp.167-178. ISSN 1665-2738.
The purpose of this study was to produce silage and determine changes in the chemical and microbiological wastes smoked yellowfin tuna (Thunnus albacares) and tilapia filleting residue (Oreochromis sp), fermented with a commercial inoculum strain Lactobacíllus caseí Shirota. Procedures were used rustic and easy access to materials to be used as fish feed supplement. We determined the optimal ratio of molasses for fermentation, and proximate and microbiological account silage. The waste is mixed with sugar cane molasses as carbon source and commercial inoculums Lactobacíllus caseí strain Shirota. At the end of six days of fermentation both silages had acceptable physical and chemical characteristics. The proportions of molasses produced the highest acidification were 15 and 20% in both silage and found no significant differences (p < 0.05). Total coliforms, molds, yeasts and Salmonella sp were not present because they are inhibited by the ensiling process and that have characteristics suitable for use as a supplement in food for aquatic organisms.
Palabras llave : biological silage; silage yellow fin tuna; tilapia silage; lactic acid fermentation.