| Autor: |
Costa FT; Universidade Tecnológica Federal do Paraná - UTFPR, Department of Food and Chemical Engineering, Campo Mourão, PR, Brasil., Oliveira TP; Universidade Tecnológica Federal do Paraná - UTFPR, Post-Graduation Program of in Technological Innovations - PPGIT, Campo Mourão, PR, Brasil., Droval AA; Universidade Tecnológica Federal do Paraná - UTFPR, Post-graduation Program of Food Technology - PPGTA, Campo Mourão, PR, Brasil., Marques LLM; Universidade Tecnológica Federal do Paraná - UTFPR, Department of Food and Chemical Engineering, Campo Mourão, PR, Brasil., Fuchs RHB; Universidade Tecnológica Federal do Paraná - UTFPR, Post-graduation Program of Food Technology - PPGTA, Campo Mourão, PR, Brasil., Cardoso FAR; Universidade Tecnológica Federal do Paraná - UTFPR, Post-Graduation Program of in Technological Innovations - PPGIT, Campo Mourão, PR, Brasil. |
| Jazyk: |
angličtina |
| Zdroj: |
Brazilian journal of biology = Revista brasleira de biologia [Braz J Biol] 2022 May 16; Vol. 84, pp. e255440. Date of Electronic Publication: 2022 May 16 (Print Publication: 2022). |
| DOI: |
10.1590/1519-6984.255440 |
| Abstrakt: |
Tilapia has high-temperature tolerance, can breed in captivity, grow fast, and have excellent cost-benefit. Because of these characteristics, this species is of great interest in aquaculture and, currently, the most produced fish in Brazil. However, by increasing tilapia production, there was also a rise in the amount of organic waste, mainly from filleting, which discards 70% of waste. There are many studies on collagen extraction from tilapia skin as an alternative to reduce these residues and add commercial value. In this work, the extraction of protein concentrate was tested using an acid protocol, in which the tilapia skins underwent a pre-treatment in an acid medium and saline precipitation, with variations in time and concentration. After its extraction, the skin was evaluated for ash, moisture, protein, solubility, and pH. The protein concentrate obtained showed low ash contents, and the humidity is within those presented by the literature. The protein concentrate showed levels from 68.73 to 80.58% of protein and a low solubility between 4.03 to 6.93%. In conclusion, acid extraction is a possible means of collagen extraction, and tilapia skin is a good alternative to reuse waste generated in the fish industry. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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