Compositional features and bioactive properties of whole fraction from Aloe vera processing
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/1822/42332 |
Resumo: | Aloe vera processing leaves generates a liquid and bagasse fraction. The resulting bagasse is mostly discarded as waste. Both the bagasse and liquid fraction can have interesting metabolites with biological activities for pharmaceutical and agro-food industries. The main objectives of the present work were: (1) to characterize the gel, liquid fraction and bagasse of A. vera; (2) to obtain extracts from bagasse (ethanolic extract, EE-B and aqueous extract, AE-B); and (3) to evaluate biological activity of gel, liquid and bagasse extracts in terms of the antifungal effect on phytopathogenic fungi and antioxidant activity by the \DPPH\ radical scavenging method. The carbohydrates were the major component of A. vera fractions corresponding to 57.45, 40.09 and 58.47 g of carbohydrates/100 g of gel, liquid fraction, and bagasse respectively. Uronic acids and malic acid were hallmarks of gel (15.80% and 18.17%, respectively); whilst for bagasse the occurrence of lignin is to be highlighted. The total phenolic content of the liquid fraction was 43.30 mg aloin g?1 extract, whereas the value of \IC50\ was 7.66 mg mL?1; the first was significantly higher and the second was lower when compared to the corresponding values for the gel (19.11 mg aloin g?1 and 17.01 mg mL?1, respectively). EE-B presented a greater antioxidant activity, higher total phenolic content and better antifungal activity than AE-B. In all the treatments, the antifungal effect was concentration-dependent and varied according to the fungus genera used in the experiments. A. vera gel and liquid fraction as well as EE-B are interesting natural alternatives to control phytopathogenic fungi in industrial crops during pre- and postharvest stages. |
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Compositional features and bioactive properties of whole fraction from Aloe vera processingOrganic acidsPhenolic compoundsAntioxidant activityAntifungal activityScience & TechnologyAloe vera processing leaves generates a liquid and bagasse fraction. The resulting bagasse is mostly discarded as waste. Both the bagasse and liquid fraction can have interesting metabolites with biological activities for pharmaceutical and agro-food industries. The main objectives of the present work were: (1) to characterize the gel, liquid fraction and bagasse of A. vera; (2) to obtain extracts from bagasse (ethanolic extract, EE-B and aqueous extract, AE-B); and (3) to evaluate biological activity of gel, liquid and bagasse extracts in terms of the antifungal effect on phytopathogenic fungi and antioxidant activity by the \DPPH\ radical scavenging method. The carbohydrates were the major component of A. vera fractions corresponding to 57.45, 40.09 and 58.47 g of carbohydrates/100 g of gel, liquid fraction, and bagasse respectively. Uronic acids and malic acid were hallmarks of gel (15.80% and 18.17%, respectively); whilst for bagasse the occurrence of lignin is to be highlighted. The total phenolic content of the liquid fraction was 43.30 mg aloin g?1 extract, whereas the value of \IC50\ was 7.66 mg mL?1; the first was significantly higher and the second was lower when compared to the corresponding values for the gel (19.11 mg aloin g?1 and 17.01 mg mL?1, respectively). EE-B presented a greater antioxidant activity, higher total phenolic content and better antifungal activity than AE-B. In all the treatments, the antifungal effect was concentration-dependent and varied according to the fungus genera used in the experiments. A. vera gel and liquid fraction as well as EE-B are interesting natural alternatives to control phytopathogenic fungi in industrial crops during pre- and postharvest stages.María L. Flores-López thanks Mexican Science and Technol-ogy Council (CONACYT, Mexico) for PhD fellowship support(CONACYT grant number: 215499/310847) and COECTY-CoahuilaState Government (COAH-2016-C11-A04). Aloia Romaní was sup-ported by Xunta de Galicia fellowship (Plan I2C, 2014). Thisstudy was supported by the Portuguese Foundation for Sci-ence and Technology (FCT) under the scope of the strategicfunding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01-0145-FEDER-006684) and of the Project RECI/BBB-EBI/0179/2012(FCOMP-01-0124-FEDER-027462).ElsevierUniversidade do MinhoLópez, M.Romaní, AloiaCerqueira, M. A.Rodríguez-García, RaúlRodríguez, Diana Jasso deVicente, A. A.2016-11-302016-11-30T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/42332engLópez, M.; Romaní, Aloia; Cerqueira, M. A.; Rodríguez-García, Raúl; Rodríguez, Diana Jasso de; Vicente, A. A., Compositional features and bioactive properties of whole fraction from Aloe vera processing. Industrial Crops and Products, 91, 179-185, 20160926-66900926-669010.1016/j.indcrop.2016.07.011http://www.elsevier.com/locate/issn/09266690info: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:RCAAP2023-07-21T12:41:20Zoai:repositorium.sdum.uminho.pt:1822/42332Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:38:18.771577Repositório 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 |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
title |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
spellingShingle |
Compositional features and bioactive properties of whole fraction from Aloe vera processing López, M. Organic acids Phenolic compounds Antioxidant activity Antifungal activity Science & Technology |
title_short |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
title_full |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
title_fullStr |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
title_full_unstemmed |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
title_sort |
Compositional features and bioactive properties of whole fraction from Aloe vera processing |
author |
López, M. |
author_facet |
López, M. Romaní, Aloia Cerqueira, M. A. Rodríguez-García, Raúl Rodríguez, Diana Jasso de Vicente, A. A. |
author_role |
author |
author2 |
Romaní, Aloia Cerqueira, M. A. Rodríguez-García, Raúl Rodríguez, Diana Jasso de Vicente, A. A. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
López, M. Romaní, Aloia Cerqueira, M. A. Rodríguez-García, Raúl Rodríguez, Diana Jasso de Vicente, A. A. |
dc.subject.por.fl_str_mv |
Organic acids Phenolic compounds Antioxidant activity Antifungal activity Science & Technology |
topic |
Organic acids Phenolic compounds Antioxidant activity Antifungal activity Science & Technology |
description |
Aloe vera processing leaves generates a liquid and bagasse fraction. The resulting bagasse is mostly discarded as waste. Both the bagasse and liquid fraction can have interesting metabolites with biological activities for pharmaceutical and agro-food industries. The main objectives of the present work were: (1) to characterize the gel, liquid fraction and bagasse of A. vera; (2) to obtain extracts from bagasse (ethanolic extract, EE-B and aqueous extract, AE-B); and (3) to evaluate biological activity of gel, liquid and bagasse extracts in terms of the antifungal effect on phytopathogenic fungi and antioxidant activity by the \DPPH\ radical scavenging method. The carbohydrates were the major component of A. vera fractions corresponding to 57.45, 40.09 and 58.47 g of carbohydrates/100 g of gel, liquid fraction, and bagasse respectively. Uronic acids and malic acid were hallmarks of gel (15.80% and 18.17%, respectively); whilst for bagasse the occurrence of lignin is to be highlighted. The total phenolic content of the liquid fraction was 43.30 mg aloin g?1 extract, whereas the value of \IC50\ was 7.66 mg mL?1; the first was significantly higher and the second was lower when compared to the corresponding values for the gel (19.11 mg aloin g?1 and 17.01 mg mL?1, respectively). EE-B presented a greater antioxidant activity, higher total phenolic content and better antifungal activity than AE-B. In all the treatments, the antifungal effect was concentration-dependent and varied according to the fungus genera used in the experiments. A. vera gel and liquid fraction as well as EE-B are interesting natural alternatives to control phytopathogenic fungi in industrial crops during pre- and postharvest stages. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-11-30 2016-11-30T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/42332 |
url |
http://hdl.handle.net/1822/42332 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
López, M.; Romaní, Aloia; Cerqueira, M. A.; Rodríguez-García, Raúl; Rodríguez, Diana Jasso de; Vicente, A. A., Compositional features and bioactive properties of whole fraction from Aloe vera processing. Industrial Crops and Products, 91, 179-185, 2016 0926-6690 0926-6690 10.1016/j.indcrop.2016.07.011 http://www.elsevier.com/locate/issn/09266690 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
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) |
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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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