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

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Shirahigue, LD (Author) Other; Ribeiro, IS (Author) Other; de Arruda Sucasas, LFD (Author) Other; Anbe, L (Author) Other; vaz-pires, p (Author) ICBAS; Oetterer, M (Author) Other

Journal

Title: Journal of Aquatic Food Product Technology

Vol. 27

Pages: 712-721

ISSN: 1049-8850

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00P-DVN

DOI: 10.1080/10498850.2018.1484830

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10