Towards the anchovy biorefinery: Biogas production from anchovy processing waste after fish oil extraction with biobased limonene

Autor: Antonino Scurria, Daniela Maria Pizzone, Paolo S. Calabrò, Emilia Paone, Rosaria Ciriminna, Mario Pagliaro, Filippo Fazzino
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Sustainability, Vol 13, Iss 2428, p 2428 (2021)
Sustainability (Basel) 13 (2021): 1–12. doi:10.3390/su13052428
info:cnr-pdr/source/autori:Paone, Emilia; Fazzino, Filippo; Pizzone, Daniela Maria; Scurria, Antonino; Pagliaro, Mario; Ciriminna, Rosaria; Calabrò, Paolo Salvatore/titolo:Towards the anchovy biorefinery: Biogas production from anchovy processing waste after fish oil extraction with biobased limonene/doi:10.3390%2Fsu13052428/rivista:Sustainability (Basel)/anno:2021/pagina_da:1/pagina_a:12/intervallo_pagine:1–12/volume:13
Sustainability
Volume 13
Issue 5
DOI: 10.3390/su13052428
Popis: Anchovies are among the largest fish catch worldwide. The anchovy fillet industry generates a huge amount of biowaste (e.g., fish heads, bones, tails) that can be used for the extraction of several potentially valuable bioproducts including omega-3 lipids. Following the extraction of valued fish oil rich in omega-3, vitamin D3 and zeaxanthin from anchovy fillet leftovers using biobased limonene in a fully circular process, the solid residue (anchovy sludge) was used as starting substrate for the production of biogas by anaerobic digestion. In spite of the unbalanced carbon to nitrogen (C/N) ratio, typical of marine biowaste, the anchovy sludge showed a good methane yield (about 280 mLCH4∙gVS−1), proving to be an ideal substrate for co-digestion along with other carbon rich wastes and residues. Furthermore, the presence of residual limonene, used as a renewable, not-toxic and edible extraction solvent, does not affect the microbial methanogenesis. The results reported in this study demonstrate that anchovy leftovers after the fish oil extraction process can be efficiently used as a starting co-substrate for the production of biogas in a modern biorefinery.
Databáze: OpenAIRE