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Title

Development of bioprocesses for the integral valorisation of fish discards

AuthorsVázquez, José Antonio ; Fernández-Compás, Andrea; Blanco Comesaña, M. ; Rodríguez-Amado, I. ; Moreno Conde, Helena María ; Borderías, A. Javier ; Pérez Martín, Ricardo Isaac
KeywordsFish discards
By-products valorisation
Fish protein hydrolysates
Bioactivities
Marine peptones
Pediococcus acidilactici
Issue DateApr-2019
PublisherElsevier
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
URIhttp://hdl.handle.net/10261/177633
DOI10.1016/j.bej.2019.02.004
ISSN1369-703X
Appears in Collections:(IIM) Artículos
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