Valorisation of red beet waste
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2023 |
| Outros Autores: | , , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/152347 |
Resumo: | This work was partly developed within the scope of the projects CICECO-Aveiro Institute of Materials, LA/P/0006/2020 and the Associate Laboratory for Green Chemistry-LA/P/0008/2020, financed by national funds through the FCT/MCTES (PIDDAC). Publisher Copyright: © 2023 The Royal Society of Chemistry. |
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Valorisation of red beet wasteone-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systemsEnvironmental ChemistryPollutionSDG 8 - Decent Work and Economic GrowthSDG 12 - Responsible Consumption and ProductionThis work was partly developed within the scope of the projects CICECO-Aveiro Institute of Materials, LA/P/0006/2020 and the Associate Laboratory for Green Chemistry-LA/P/0008/2020, financed by national funds through the FCT/MCTES (PIDDAC). Publisher Copyright: © 2023 The Royal Society of Chemistry.Globally, up to 50% of root crops, fruits and vegetables produced is wasted. Beetroot stems and leaves fit into this scenario, with only a small fraction being used in cattle food. One way of approaching this problem is through their valorisation, by extracting and recovering valuable compounds present in this type of waste that could be used in other applications, while contributing towards a circular economy. In this work, a new integrated process using thermoreversible aqueous biphasic systems (ABS) composed of quaternary ammonium-based ionic liquids (ILs) and polypropyleneglycol 400 g mol−1 (PPG) is shown to allow the one-step extraction and separation of two pigment classes—betalains and chlorophylls—from red beet stems and leaves. The pigment extraction was carried out with a monophasic aqueous solution of the IL and PPG, whose phase separation was then achieved by a temperature switch, resulting in the simultaneous separation of chlorophylls and betalains into opposite phases. A central composite design was used to optimise the extraction parameters (time, temperature, and solid : liquid (S/L) ratio) of both pigment extraction yields, reaching at 20 °C, 70 min and a S/L ratio of 0.12 a maximum extraction yield of 6.67 wt% for betalains and 1.82 wt% for chlorophylls (per weight of biomass). Moreover, it is shown that aqueous solutions of ILs better stabilise betalains than the gold standard solvent used for the extraction method. Among the studied systems, the ABS comprising the IL N-ethyl-N-methyl-N,N-bis(2-hydroxyethyl) bromide ([N21(2OH)(2OH)]Br) presented the best separation performance, with an extraction efficiency of 92% and 95% for chlorophylls and betalains, respectively, for opposite phases. The pigments were removed from the respective phases using affinity resins, with high recoveries: 96% for betalains and 98% for chlorophylls, further allowing the IL reuse. Finally, the cyto- and ecotoxicities of the quaternary ammonium-based ILs were determined. The obtained results disclosed low to negligible toxicity in the thousands of mg L−1 range, with [N21(2OH)(2OH)]Br being harmless from an ecotoxicological point of view. Overall, it is shown here that the developed process is an innovative approach for the one-step extraction and selective separation of pigments contributing to the valorisation of waste biomass.LAQV@REQUIMTEDQ - Departamento de QuímicaRUNRosa, Marguerita E.Ferreira, Ana M.Neves, Catarina M. S. S.Almeida, Mafalda R.Barros, RafaelCristovão, Ana C.Sousa, Ana C. A.Reis, Patrícia M.Rebelo, Luís Paulo N.Esperança, José M. S. S.Coutinho, João A. P.Freire, Mara G.2023-05-02T22:12:48Z2023-03-062023-03-06T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/152347eng1463-9262PURE: 59817349https://doi.org/10.1039/d2gc04480cinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:34:40Zoai:run.unl.pt:10362/152347Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:54:52.323969Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Valorisation of red beet waste one-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systems |
| title |
Valorisation of red beet waste |
| spellingShingle |
Valorisation of red beet waste Rosa, Marguerita E. Environmental Chemistry Pollution SDG 8 - Decent Work and Economic Growth SDG 12 - Responsible Consumption and Production |
| title_short |
Valorisation of red beet waste |
| title_full |
Valorisation of red beet waste |
| title_fullStr |
Valorisation of red beet waste |
| title_full_unstemmed |
Valorisation of red beet waste |
| title_sort |
Valorisation of red beet waste |
| author |
Rosa, Marguerita E. |
| author_facet |
Rosa, Marguerita E. Ferreira, Ana M. Neves, Catarina M. S. S. Almeida, Mafalda R. Barros, Rafael Cristovão, Ana C. Sousa, Ana C. A. Reis, Patrícia M. Rebelo, Luís Paulo N. Esperança, José M. S. S. Coutinho, João A. P. Freire, Mara G. |
| author_role |
author |
| author2 |
Ferreira, Ana M. Neves, Catarina M. S. S. Almeida, Mafalda R. Barros, Rafael Cristovão, Ana C. Sousa, Ana C. A. Reis, Patrícia M. Rebelo, Luís Paulo N. Esperança, José M. S. S. Coutinho, João A. P. Freire, Mara G. |
| author2_role |
author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
LAQV@REQUIMTE DQ - Departamento de Química RUN |
| dc.contributor.author.fl_str_mv |
Rosa, Marguerita E. Ferreira, Ana M. Neves, Catarina M. S. S. Almeida, Mafalda R. Barros, Rafael Cristovão, Ana C. Sousa, Ana C. A. Reis, Patrícia M. Rebelo, Luís Paulo N. Esperança, José M. S. S. Coutinho, João A. P. Freire, Mara G. |
| dc.subject.por.fl_str_mv |
Environmental Chemistry Pollution SDG 8 - Decent Work and Economic Growth SDG 12 - Responsible Consumption and Production |
| topic |
Environmental Chemistry Pollution SDG 8 - Decent Work and Economic Growth SDG 12 - Responsible Consumption and Production |
| description |
This work was partly developed within the scope of the projects CICECO-Aveiro Institute of Materials, LA/P/0006/2020 and the Associate Laboratory for Green Chemistry-LA/P/0008/2020, financed by national funds through the FCT/MCTES (PIDDAC). Publisher Copyright: © 2023 The Royal Society of Chemistry. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-05-02T22:12:48Z 2023-03-06 2023-03-06T00:00:00Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/10362/152347 |
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http://hdl.handle.net/10362/152347 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
1463-9262 PURE: 59817349 https://doi.org/10.1039/d2gc04480c |
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info:eu-repo/semantics/openAccess |
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openAccess |
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13 application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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