A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion

Several anchovies species are captured all over the world; they are consumed fresh but also preserved by the industry, either by brine-fermentation or canning in oil. The industrial process generates large amounts of residue (about 50% of the original fish biomass) that is generally used to produce...

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Autores principales:	Filippo Fazzino, Emilia Paone, Altea Pedullà, Francesco Mauriello, Paolo S. Calabrò
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	anaerobic digestion anchovies biorefinery circular economy <i>d</i>-limonene granular activated carbon Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d12ac4baa62248d9b2dd033a1e05e1f8
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spelling	oai:doaj.org-article:d12ac4baa62248d9b2dd033a1e05e1f82021-11-11T15:13:32ZA New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion10.3390/app1121101632076-3417https://doaj.org/article/d12ac4baa62248d9b2dd033a1e05e1f82021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10163https://doaj.org/toc/2076-3417Several anchovies species are captured all over the world; they are consumed fresh but also preserved by the industry, either by brine-fermentation or canning in oil. The industrial process generates large amounts of residue (about 50% of the original fish biomass) that is generally used to produce fish flour. In this paper, the advancement of a recently proposed process for the full valorisation of anchovies aimed at the extraction of fish oil (to be used as an omega-3 source) and at the production of biomethane through anaerobic digestion is presented. Particularly, in the experiments presented, a co-digestion of anchovy sludge—used as a nitrogen supplement—and market waste (5% and 95% on a Total Solids basis) was performed. Since the proposed extraction process uses, as a green-solvent, <i>d</i>-limonene, the well-known problems of toxicity for the anaerobic biomass must be overcome during the digestion process. As discussed below, the granular activated carbon (GAC) is used to reclaim and improve anaerobic digestion processes in a reactor displaying clear signs of inhibition. In fact, GAC demonstrates multiple benefits for anaerobic digestion, such as adsorption of toxic substances, biomass selection, and triggering of direct interspecies electron transfer (DIET).Filippo FazzinoEmilia PaoneAltea PedullàFrancesco MaurielloPaolo S. CalabròMDPI AGarticleanaerobic digestionanchoviesbiorefinerycircular economy<i>d</i>-limonenegranular activated carbonTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10163, p 10163 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anaerobic digestion anchovies biorefinery circular economy <i>d</i>-limonene granular activated carbon Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	anaerobic digestion anchovies biorefinery circular economy <i>d</i>-limonene granular activated carbon Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Filippo Fazzino Emilia Paone Altea Pedullà Francesco Mauriello Paolo S. Calabrò A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
description	Several anchovies species are captured all over the world; they are consumed fresh but also preserved by the industry, either by brine-fermentation or canning in oil. The industrial process generates large amounts of residue (about 50% of the original fish biomass) that is generally used to produce fish flour. In this paper, the advancement of a recently proposed process for the full valorisation of anchovies aimed at the extraction of fish oil (to be used as an omega-3 source) and at the production of biomethane through anaerobic digestion is presented. Particularly, in the experiments presented, a co-digestion of anchovy sludge—used as a nitrogen supplement—and market waste (5% and 95% on a Total Solids basis) was performed. Since the proposed extraction process uses, as a green-solvent, <i>d</i>-limonene, the well-known problems of toxicity for the anaerobic biomass must be overcome during the digestion process. As discussed below, the granular activated carbon (GAC) is used to reclaim and improve anaerobic digestion processes in a reactor displaying clear signs of inhibition. In fact, GAC demonstrates multiple benefits for anaerobic digestion, such as adsorption of toxic substances, biomass selection, and triggering of direct interspecies electron transfer (DIET).
format	article
author	Filippo Fazzino Emilia Paone Altea Pedullà Francesco Mauriello Paolo S. Calabrò
author_facet	Filippo Fazzino Emilia Paone Altea Pedullà Francesco Mauriello Paolo S. Calabrò
author_sort	Filippo Fazzino
title	A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
title_short	A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
title_full	A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
title_fullStr	A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
title_full_unstemmed	A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion
title_sort	new biorefinery approach for the full valorisation of anchovy residues: use of the sludge generated during the extraction of fish oil as a nitrogen supplement in anaerobic digestion
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d12ac4baa62248d9b2dd033a1e05e1f8
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A New Biorefinery Approach for the Full Valorisation of Anchovy Residues: Use of the Sludge Generated during the Extraction of Fish Oil as a Nitrogen Supplement in Anaerobic Digestion

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