Aprovechamiento de fauna de acompañamiento del camarón y subproductos pesqueros mediante la elaboración de ensilado de pescado
The fish wastes are generally dumped or discarded causing environmental pollution and off odours. However, they represent large resources that are currently underutilized. The purpose of this study was the lactic acid fermentation of three sources of fish wastes: Shrimp by catch (SC), Sphyraena ensi...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | México |
| Institución: | Universidad Autónoma Metropolitana |
| Repositorio: | Repositorio Institucional de la UAM Iztapalapa |
| Idioma: | español |
| OAI Identifier: | oai:bindani.izt.uam.mx:w9505070k |
| Acceso en línea: | https://doi.org/10.24275/uami.w9505070k |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/LEM/Fish as food info:eu-repo/classification/LEM/Fishery products info:eu-repo/classification/LEM/Probiotics info:eu-repo/classification/LEM/Prebiotics info:eu-repo/classification/LEM/Productos pesqueros info:eu-repo/classification/LEM/Pescado como alimento info:eu-repo/classification/LEM/Probióticos info:eu-repo/classification/LEM/Prebióticos info:eu-repo/classification/cti/6 |
| Sumario: | The fish wastes are generally dumped or discarded causing environmental pollution and off odours. However, they represent large resources that are currently underutilized. The purpose of this study was the lactic acid fermentation of three sources of fish wastes: Shrimp by catch (SC), Sphyraena ensis wastes (SB) and mixture of fisheries processing wastes from several species (MixW) for production of protein hydrolysates. MixW were added with several sugar cane molasses concentrations as carbon source, 180 g/Kg of sugar molasses gave the fastest acidification. The maximum concentration of lactic acid (Pmax) was significantly higher with Lactobacillus sp. B2 than that obtained with Lb. plantarum. Shrimp by catch (SC), Sphyraena ensis wastes (SB) and MixW were evaluated on lactic acid fermentation. MixW was selected for scaling up and inoculated with Lactobacillus sp. B2 due to the enhanced lactic acid production and availability. The silage obtained was well preserved due to the acid produced and the reduction in Aw (0.94). The SDS-PAGE electrophoretic pattern showed that using inoculum, the proteins suffered the highest hydrolysis, resulting in peptides with molecular weights from 7 to 147 kDa. The coefficient of protein hydrolysis of silage at 144 h of fermentation was significantly higher (0.94) than the obtained with raw MixW (0.12). The coefficient of protein in vitro digestibility (CPD) of silages was also determined higher, 0.88, than the raw MixW (0.69). The feeding trials with 160 quails for meat production (Coturnix coturnix japonica), 21 days old and 78.06 ± 3.96 g of weight each, was carried out in order to assess the biological value of fermented product of fish wastes. Four isoproteics diets for growth were prepared at different levels of fish silage (0, 5, 10 and 15%), which were applied in four repetitions with ten quails each. Diets were successfully accepted by the quails and productive parameters such as feed intake, weight gain and feed conversion rate did not show significant difference between treatments and commercial diet used as control (P>0.05). Moreover, the carcass yield and the attributes meat as the color, odor, flavor, tenderness and juiciness, did not show significant difference between control and the diets with fish silage (P>0.05). Also, the panelists tasted pleasantly the meat without detected any odor or taste of fish. The results reported herein show a high nutritional value and are of interest for the reuse of fishery by-product wastes by industrial sector. Keywords: Fish waste, molasses, Lactobacillus, lactic acid fermentation, scaling-up, protein hydrolysis, digestibility, animal feed. |
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