Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity
Adding value to agro-industrial residues is becoming increasingly important, satisfying needs to promote resources’ use efficiency and a more sustainable and circular economy. This work performs a parametric and kinetic study of enzymatic esterification of lard and tallow with high acidity, obtained...
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Online Access: | http://hdl.handle.net/10400.22/20428 https://doi.org/10.3390/su131910837 |
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ftinstpporto:oai:recipp.ipp.pt:10400.22/20428 2023-05-15T13:33:04+02:00 Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity Martins, António A. Andrade, Soraia Correia, Daniela Matos, Elisabete Caetano, Nídia Mata, Teresa M. 2021 http://hdl.handle.net/10400.22/20428 https://doi.org/10.3390/su131910837 eng eng MDPI info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00511%2F2020/PT info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04730%2F2020/PT https://www.mdpi.com/2071-1050/13/19/10837 Martins AA, Andrade S, Correia D, Matos E, Caetano NS, Mata TM. Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity. Sustainability. 2021; 13(19):10837. https://doi.org/10.3390/su131910837 2071-1050 http://hdl.handle.net/10400.22/20428 doi:10.3390/su131910837 openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Animal fats Acidity reduction Circular economy Lipozyme CALB L Industrial conditions Reaction kinetics article 2021 ftinstpporto https://doi.org/10.3390/su131910837 2023-03-12T18:57:55Z Adding value to agro-industrial residues is becoming increasingly important, satisfying needs to promote resources’ use efficiency and a more sustainable and circular economy. This work performs a parametric and kinetic study of enzymatic esterification of lard and tallow with high acidity, obtained by the rendering of slaughter by-products, allowing their use as a feed ingredient and increasing their market value. After an initial analysis of potential enzyme candidates, a Candida antarctica lipase B was selected as a biocatalyst for converting free fatty acids (FFA) to esters, using excess ethanol as the reagent. Results show that the fat acidity can be reduced by at least 67% in up to 3 h of reaction time at 45 °C, using the mass ratios of 3.25 ethanol/FFA and 0.0060 enzyme/fat. Kinetic modelling shows an irreversible second-order rate law, function of FFA, and ethanol concentration better fitting the experimental results. Activation energy is 54.7 kJ/mol and pre-exponential factor is 4.6 × 106 L mol−1 min−1 This work was financially supported by project PP-IJUP2014-SOJA DE PORTUGAL; Base Funding—UIDB/00511/2020 of Laboratory for Process Engineering, Environment, Bio-technology and Energy—LEPABE—funded by National funds through the FCT/MCTES (PIDDAC); Base Funding— UIDB/04730/2020 of Center for Innovation in Engineering and Industrial Technology, CIETI—funded by national funds through the FCT/MCTES (PID-DAC); António Martins thanks FCT (Fundação para a Ciência e Tecnologia) for funding through program DL 57/2016—Norma transitória. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Antarc* Antarctica Instituto Politécnico do Porto: Repositório Científico (RECIPP) Slaughter ENVELOPE(-85.633,-85.633,-78.617,-78.617) Sustainability 13 19 10837 |
institution |
Open Polar |
collection |
Instituto Politécnico do Porto: Repositório Científico (RECIPP) |
op_collection_id |
ftinstpporto |
language |
English |
topic |
Animal fats Acidity reduction Circular economy Lipozyme CALB L Industrial conditions Reaction kinetics |
spellingShingle |
Animal fats Acidity reduction Circular economy Lipozyme CALB L Industrial conditions Reaction kinetics Martins, António A. Andrade, Soraia Correia, Daniela Matos, Elisabete Caetano, Nídia Mata, Teresa M. Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
topic_facet |
Animal fats Acidity reduction Circular economy Lipozyme CALB L Industrial conditions Reaction kinetics |
description |
Adding value to agro-industrial residues is becoming increasingly important, satisfying needs to promote resources’ use efficiency and a more sustainable and circular economy. This work performs a parametric and kinetic study of enzymatic esterification of lard and tallow with high acidity, obtained by the rendering of slaughter by-products, allowing their use as a feed ingredient and increasing their market value. After an initial analysis of potential enzyme candidates, a Candida antarctica lipase B was selected as a biocatalyst for converting free fatty acids (FFA) to esters, using excess ethanol as the reagent. Results show that the fat acidity can be reduced by at least 67% in up to 3 h of reaction time at 45 °C, using the mass ratios of 3.25 ethanol/FFA and 0.0060 enzyme/fat. Kinetic modelling shows an irreversible second-order rate law, function of FFA, and ethanol concentration better fitting the experimental results. Activation energy is 54.7 kJ/mol and pre-exponential factor is 4.6 × 106 L mol−1 min−1 This work was financially supported by project PP-IJUP2014-SOJA DE PORTUGAL; Base Funding—UIDB/00511/2020 of Laboratory for Process Engineering, Environment, Bio-technology and Energy—LEPABE—funded by National funds through the FCT/MCTES (PIDDAC); Base Funding— UIDB/04730/2020 of Center for Innovation in Engineering and Industrial Technology, CIETI—funded by national funds through the FCT/MCTES (PID-DAC); António Martins thanks FCT (Fundação para a Ciência e Tecnologia) for funding through program DL 57/2016—Norma transitória. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Martins, António A. Andrade, Soraia Correia, Daniela Matos, Elisabete Caetano, Nídia Mata, Teresa M. |
author_facet |
Martins, António A. Andrade, Soraia Correia, Daniela Matos, Elisabete Caetano, Nídia Mata, Teresa M. |
author_sort |
Martins, António A. |
title |
Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
title_short |
Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
title_full |
Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
title_fullStr |
Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
title_full_unstemmed |
Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity |
title_sort |
valorization of agro-industrial residues: bioprocessing of animal fats to reduce their acidity |
publisher |
MDPI |
publishDate |
2021 |
url |
http://hdl.handle.net/10400.22/20428 https://doi.org/10.3390/su131910837 |
long_lat |
ENVELOPE(-85.633,-85.633,-78.617,-78.617) |
geographic |
Slaughter |
geographic_facet |
Slaughter |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00511%2F2020/PT info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04730%2F2020/PT https://www.mdpi.com/2071-1050/13/19/10837 Martins AA, Andrade S, Correia D, Matos E, Caetano NS, Mata TM. Valorization of Agro-Industrial Residues: Bioprocessing of Animal Fats to Reduce Their Acidity. Sustainability. 2021; 13(19):10837. https://doi.org/10.3390/su131910837 2071-1050 http://hdl.handle.net/10400.22/20428 doi:10.3390/su131910837 |
op_rights |
openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.3390/su131910837 |
container_title |
Sustainability |
container_volume |
13 |
container_issue |
19 |
container_start_page |
10837 |
_version_ |
1766038267691532288 |