Peptones in Silage from Tilapia (Oreochromis niloticus) and Cobia (Rachycentron canadum) Waste as a Culture Medium for Bioprocesses

Autor(es)

Shirahigue, Ligianne Din ^[1] ; Ribeiro, Ingridy Simone ^[2] ; de Arruda Sucasas, Lia Ferraz ^[3] ; Anbe, Lika ^[3] ; Vaz-Pires, Paulo ^[4] ; Oetterer, Marilia ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, UFSCAR, CCA, BR-13604970 Araras, SP - Brazil

^[2] Fed Inst Educ Sci & Technol South Minas, Muzambinho, MG - Brazil

^[3] Univ Sao Paulo, ESALQ, Dept Food Sci & Technol, Lab Freshwater Fish & Seafood Technol, Piracicaba, SP - Brazil

^[4] Univ Porto, Interdisciplinary Ctr Marine & Environm Res, Food Technol Lab, Porto - Portugal

• Tipo de documento: Artigo Científico
• Fonte: Journal of Aquatic Food Product Technology; v. 27, n. 6, p. 712-721, 2018.
• Citações Web of Science: 1

Resumo

This study investigated the efficacy of the aqueous fraction obtained after fractionating silage of tilapia (Oreochromis niloticus) and cobia (Rachycentron canadum) in supporting the growth of Escherichia coli and Staphylococcus aureus. The silages were prepared using combinations of citric, formic, and propionic acids. The aqueous fractions, used as test peptones, contained lower levels of total protein. The concentrations of 18 amino acids in all the samples were observed to be lower than those in the commercial peptone. Glutamic acid, lysine, glycine, and aspartic acid were present in higher concentrations than other amino acids, for both types of silage. Biomass production from E. coli culture ranged from 38.4 to 65.9mg 100mL(-1) for all the tested treatments, while that for S. aureus was from 26.3 to 53.7mg 100mL(-1). This indicated that products from fish silage were effective for bacterial growth in terms of biomass, by providing the main sources of nitrogen and carbon to facilitate their growth. The tested silages yielded similar efficiency to the commercial peptone. The findings revealed that it is feasible for the fish processing industry to incorporate freeze-dried by-products obtained after fractioning waste silage from the processing of tilapia and cobia. (AU)

• Processo FAPESP: 13/13158-1 - Sustentabilidade da cadeia produtiva de pescado: seletividade e otimização de co-produtos do resíduo do processamento de tilápia e beijupirá
• Beneficiário: Marília Oetterer
• Modalidade de apoio: Auxílio à Pesquisa - Regular