Valorisation of fish discards assisted by enzymatic hydrolysis and microbial bioconversion: Lab and pilot plant studies and preliminary sustainability evaluation

JOURNAL OF CLEANER PRODUCTION

卷:246

Article

Antonio Vazquez, Jose^1,2  Fraguas, Javier^1,2  Miron, Jesus^1,2  Valcarcel, Jesus^1,2  Perez-Martin, Ricardo I.^1,3  Antelo, Luis T.⁴ 

[1] Marine Res Inst IIM CSIC, Grp Biotechnol & Marine Bioproc, C Eduardo Cabello 6, Vigo 36208, Galicia, Spain

[2] Marine Res Inst IIM CSIC, Lab Recycling & Valorisat Waste Mat REVAL, C Eduardo Cabello 6, Vigo 36208, Galicia, Spain

[3] Marine Res Inst IIM CSIC, Lab Food Biochem, C Eduardo Cabello 6, Vigo 36208, Galicia, Spain

[4] Marine Res Inst IIM CSIC, Grp Bioproc Engn, C Eduardo Cabello 6, Vigo 36208, Galicia, Spain

关键词: Fish discards;    Valorisation;    Fish protein hydrolysates;    Fish peptones;    Pediococcus accidilactici;    Sustainability;   

DOI  :  10.1016/j.jclepro.2019.119027

来源: Elsevier

【 摘 要 】

The new EU fishing policies (Landing Obligation) are aimed at preventing the elimination of fishing discards overboard. These new biomasses that have to be landed from 2019 force to stablish valorisation protocols since, in most cases, they cannot be used directly for human consumption. In this context, the aim of this work was to develop an integral process based on enzyme proteolysis that permitted jointly the production and recovery of fish protein hydrolysates (FPHs), oils, bioactive peptides and fish peptones. This procedure was initially applied to ten fish discards to lab scale. FPHs of high quality in terms of soluble protein and amino acid contents, digestibility and bioactivities were obtained. The growth and metabolites productions by Pediococcus acidilactici on peptones from FPHs was also evaluated with excellent results. Pilot plant trials confirmed the results of FPHs production obtained at lab scale. Finally, a comparison with the nowadays most common use of fish biomass (fish meal production) has been made as a preliminary sustainability assessment of the proposed FPHs valorisation chain. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

Free