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Development of bioprocesses for the integral valorisation of fish discards

AuthorsVázquez, José Antonio CSIC ORCID ; Fernández-Compás, Andrea; Blanco Comesaña, M. ; Rodríguez-Amado, I. CSIC; Moreno Conde, Helena María CSIC ORCID; Borderías, A. Javier CSIC ORCID ; Pérez Martín, Ricardo Isaac CSIC ORCID
KeywordsFish discards
By-products valorisation
Fish protein hydrolysates
Marine peptones
Pediococcus acidilactici
Issue DateApr-2019
CitationBiochemical Engineering Journal 144: 198-208 (2019)
AbstractIn the present work, we have developed a set of sequential and complementary alternatives to valorise five fish discards in order to recover and produce fish mince, oils, gelatins, fish protein hydrolysates (FPHs) with antioxidant and antihypertensive properties and marine peptones. In this last case, microbial bioconversion of marine peptones was studied by Pediococcus acidilacti growth, a well-known valuable lactic acid bacterium, and the concomitant production of lactic acid and pediocin SA-1. Highly digestible FPHs with a good quality of amino acids composition and antioxidant and antihypertensive properties were easily produced. In the same bioprocess, fish oils with a healthy ω-3/ ω-6 ratio were also isolated. The use of peptones derived from FPHs as bacterial media nutrient (source of organic nitrogen) led to reduction of bioproductions costs between 2–5 folds in comparison with commercial culture medium.
Description11 pages, 3 figures, 7 tables.
Publisher version (URL)https://doi.org/10.1016/j.bej.2019.02.004
Appears in Collections:(ICTAN) Artículos
(IIM) Artículos
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