Caracterização nutricional e funcional da proteína recuperada de cefalotórax de camarão-rosa e estudo do aproveotamento do produto residual / Nutritional and functional characterization of the protein recovered from pink-shrimp cephalotorax and study of the residual product
AUTOR(ES)
Alfredo Tenuta Filho
DATA DE PUBLICAÇÃO
1983
RESUMO
A method for the protein recuperation from pink shrimp (Penaeus brasilensis and Penaeus palensis) cephalotorax was developed and the recuperated product and generated solid waste were characterized. The physical separation and protein insolubilization by isoelectric precipitation (pH4,5) and heating (70-75°C/5min) were the base of this method. The method promoted a yie1d of 2% and the protein product showed low quantities of calcium (0,03%) and chitin (0,5%) and very low quantities of toxic metals (Hg, Cd, Pb, Cu and Zn) in relation to limits permited in foods. Based on the essential amino acids chemical score the recuperated protein showed a nutritional quality of 54% and 90%, compared to casein and F.A.O/O.M.S reference protein, respectively, primarily limited in triptophan. The eficiency of this protein in animal growth promotion was of 81% in relation to casein, limited partially by its digestibility (78%). The solubilty of the protein was low at pH 7 (8,70%) and was improved (20 to 97,5%) through the alkaline treatment and/or heating elimination in its recuperation. The emulsification capacity of this protein was from 31% to 125% campared to commercial say protein (Proteimax 90 HG) when the a1ka1ine treatment and/or heating elimination was also used. Accarding to the essential amino acids chemical score the protein nutritional quality of the solid waste was of 21% and 35% respectively, in relation to casein and F.A.O/O.M.S. reference proteint with primary limitation in triptophan. The yield in chitin and chitosan was 2,7g and 2,5g/100g cephalotorax or 29g and 26g/100g solid waste, respectively.
ASSUNTO(S)
proteins proteínas shrimp cefalotórax de camarão-rosa pink-shrimp cephalotorax recovered protein proteína recuperada camarão
Documentos Relacionados
- Comportamento higroscópico do resíduo seco de camarão-rosa
- Qualidade química e microbiológica de camarão-rosa comercializado em São Paulo
- Efeito do processamento sobre os níveis de colesterol e 7-cetocolesterol em camarão-rosa
- Uso de probióticos na produção de pós-larvas de camarão-rosa
- Compostos nitrogenados sobre o consumo alimentar de camarão-rosa Farfantepenaeus brasiliensis