HIDROLISADOS PROTEICOS DE RESÍDUOS DE TILÁPIA: PRODUÇÃO, TIPOS E SUSTENTABILIDADE
HIDROLISADOS PROTEICOS DE RESÍDUOS DE TILÁPIA: PRODUÇÃO, TIPOS E SUSTENTABILIDADE
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DOI: https://doi.org/10.22533/at.ed.782122512083
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Palavras-chave: Oreochromis niloticus, proteína, fracionamento, peptídeos e nutrição.
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Keywords: Oreochromis niloticus, protein, fractionation, peptides, and nutrition.
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Abstract: Given the increase in fish production from aquaculture, a search is underway for economically viable, environmentally friendly, and high-quality diets. Tilapia farming is the most established fish farming method in Brazil, and its processing generates a large amount of waste. This process yields protein hydrolysate, an ingredient that can be incorporated into fish diets. It offers high biological value and sustainability due to the origin of the raw material, which would be an environmental pollutant if not used as feed. Meeting nutritional requirements is primarily a challenge with the protein fraction of diets, specifically the provision of limiting amino acids such as sulfur amino acids, requiring the use of low-availability, high-cost protein feeds like fish meal. Supplementation with crystalline amino acids, widely used in poultry and swine nutrition, has not shown great effectiveness in fish, primarily due to their ease of excretion through the gills and the fact that they occupy most absorption sites with the continuous supply of these readily available nutrients. Silage residue itself presents the same problem due to its high proportion of free amino acids. Considering the significant similarity of its composition to that of the new tilapia protein matrix, we propose studying the feasibility of fractionating the protein from tilapia silage residue by evaluating the protein hydrolysis processes and the efficiency of its polypeptide utilization in practical diets on productive performance, nutritional status, and intestinal morphology.
- Ligia Maria Neira
- Luiz Flávio José dos Santos
- Joao Martins Pizauro Junior
- Dalton José Carneiro