Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/1822/66832 |
Resumo: | In this study, a conical-cylindrical spouted bed dryer with Teflon® beads as spouting material was used for producing powdered rosemary (Rosmarinus officinalis L.) extract. The influence of the inlet drying gas temperature (Tgi) and the percentage ratio between the feed rate of concentrated liquid extract by the maximum evaporation capacity of the spouted bed (Ws/Wmax) on selected physicochemical properties of the finished products were investigated. Antioxidant properties of the concentrated liquid extract and dried extracts were also evaluated by the 2.2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH) and lipid peroxidation induced by Fe2+/citrate (LPO) methods; and compared with the values obtained for a lyophilized extract (used as a control). Colloidal silicon dioxide (Tixosil® 333) and maltodextrin (DE 14) at a 2:1 ratio was added to the concentrated extract before drying (4.4% w/w) to improve the drying performance. The drying variables Ws/Wmax and Tgi have statistically significant influence on total polyphenols and total flavonoid contents of the dried powders. The concentrated extract (on dry basisbeing absolute solid content) showed superior antioxidant activity (AA) compared to both the spouted bed dried and the lyophilized extracts; exhibiting IC50 values of 0.96 ± 0.02, 2.16 ± 0.04 and 3.79 ± 0.05 µg mL1 (DPPH method) and 0.22 ± 0.01, 1.31± 0.01 and 2.54 ± 0.02 µg mL1 (LPO method), respectively. These results of AA are comparable to values obtained for quercetin, a flavonoid compound often used as a reference standard due to its potent antioxidant activity; with IC50 of 1.17 µg mL1 (DPPH) and 0.22 µg mL1 (LPO). However, the dried rosemary extracts are about 13.5 times more concentrated than the initial concentrated extract (dry weight), with a concentration of total flavonoids and polyphenols compounds ranging from 4.3 to 12.3 and from 1.2 to 4.7 times higher than the concentrated extract values (wet basis). The AA per dry product mass was thus significantly higher than the values measured for concentrated extractive solution, irrespective of some losses of AA apparently due to the drying process. |
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Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activityHerbal medicinal productDried extractSpouted bed dryingAntioxidant activityRosmarinus officinalisPowder propertiesCiências Médicas::Biotecnologia MédicaScience & TechnologyIn this study, a conical-cylindrical spouted bed dryer with Teflon® beads as spouting material was used for producing powdered rosemary (Rosmarinus officinalis L.) extract. The influence of the inlet drying gas temperature (Tgi) and the percentage ratio between the feed rate of concentrated liquid extract by the maximum evaporation capacity of the spouted bed (Ws/Wmax) on selected physicochemical properties of the finished products were investigated. Antioxidant properties of the concentrated liquid extract and dried extracts were also evaluated by the 2.2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH) and lipid peroxidation induced by Fe2+/citrate (LPO) methods; and compared with the values obtained for a lyophilized extract (used as a control). Colloidal silicon dioxide (Tixosil® 333) and maltodextrin (DE 14) at a 2:1 ratio was added to the concentrated extract before drying (4.4% w/w) to improve the drying performance. The drying variables Ws/Wmax and Tgi have statistically significant influence on total polyphenols and total flavonoid contents of the dried powders. The concentrated extract (on dry basisbeing absolute solid content) showed superior antioxidant activity (AA) compared to both the spouted bed dried and the lyophilized extracts; exhibiting IC50 values of 0.96 ± 0.02, 2.16 ± 0.04 and 3.79 ± 0.05 µg mL1 (DPPH method) and 0.22 ± 0.01, 1.31± 0.01 and 2.54 ± 0.02 µg mL1 (LPO method), respectively. These results of AA are comparable to values obtained for quercetin, a flavonoid compound often used as a reference standard due to its potent antioxidant activity; with IC50 of 1.17 µg mL1 (DPPH) and 0.22 µg mL1 (LPO). However, the dried rosemary extracts are about 13.5 times more concentrated than the initial concentrated extract (dry weight), with a concentration of total flavonoids and polyphenols compounds ranging from 4.3 to 12.3 and from 1.2 to 4.7 times higher than the concentrated extract values (wet basis). The AA per dry product mass was thus significantly higher than the values measured for concentrated extractive solution, irrespective of some losses of AA apparently due to the drying process.Foundation of Research Support of the São Paulo State (FAPESP) for the funded projects 2011/10333-1, 2012/03427-2 and 2018/26069-0 and for the National Council for Scientific and Technological Development (CNPq) for the financial support. E.B.S. acknowledges the Portuguese Science and Technology Foundation (FCT) for the funded projects M-ERA-NET/0004/2015 (PAIRED) and UIDB/04469/2020 (strategic fund)info:eu-repo/semantics/publishedVersionMDPI AGUniversidade do MinhoSouza, Claudia R. F.Baldim, IaraBankole, Victor O.da Ana, RaquelDurazzo, AlessandraLucarini, MassimoCicero, NicolaSantini, AntonelloSouto, Eliana B.Oliveira, Wanderley P.20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/66832engSouza, Claudia R. F.; Baldim, Iara; Bankole, Victor O.; da Ana, Raquel; Durazzo, Alessandra; Lucarini, Massimo; Cicero, Nicola; Santini, Antonello; Souto, Eliana; Oliveira, Wanderley P., Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity. Agriculture, 10(8), 349, 2020207704722077047210.3390/agriculture10080349https://www.mdpi.com/2077-0472/10/8/349info: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:RCAAP2023-07-21T12:45:22Zoai:repositorium.sdum.uminho.pt:1822/66832Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:43:10.581873Repositório 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 |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
title |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
spellingShingle |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity Souza, Claudia R. F. Herbal medicinal product Dried extract Spouted bed drying Antioxidant activity Rosmarinus officinalis Powder properties Ciências Médicas::Biotecnologia Médica Science & Technology |
title_short |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
title_full |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
title_fullStr |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
title_full_unstemmed |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
title_sort |
Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity |
author |
Souza, Claudia R. F. |
author_facet |
Souza, Claudia R. F. Baldim, Iara Bankole, Victor O. da Ana, Raquel Durazzo, Alessandra Lucarini, Massimo Cicero, Nicola Santini, Antonello Souto, Eliana B. Oliveira, Wanderley P. |
author_role |
author |
author2 |
Baldim, Iara Bankole, Victor O. da Ana, Raquel Durazzo, Alessandra Lucarini, Massimo Cicero, Nicola Santini, Antonello Souto, Eliana B. Oliveira, Wanderley P. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Souza, Claudia R. F. Baldim, Iara Bankole, Victor O. da Ana, Raquel Durazzo, Alessandra Lucarini, Massimo Cicero, Nicola Santini, Antonello Souto, Eliana B. Oliveira, Wanderley P. |
dc.subject.por.fl_str_mv |
Herbal medicinal product Dried extract Spouted bed drying Antioxidant activity Rosmarinus officinalis Powder properties Ciências Médicas::Biotecnologia Médica Science & Technology |
topic |
Herbal medicinal product Dried extract Spouted bed drying Antioxidant activity Rosmarinus officinalis Powder properties Ciências Médicas::Biotecnologia Médica Science & Technology |
description |
In this study, a conical-cylindrical spouted bed dryer with Teflon® beads as spouting material was used for producing powdered rosemary (Rosmarinus officinalis L.) extract. The influence of the inlet drying gas temperature (Tgi) and the percentage ratio between the feed rate of concentrated liquid extract by the maximum evaporation capacity of the spouted bed (Ws/Wmax) on selected physicochemical properties of the finished products were investigated. Antioxidant properties of the concentrated liquid extract and dried extracts were also evaluated by the 2.2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH) and lipid peroxidation induced by Fe2+/citrate (LPO) methods; and compared with the values obtained for a lyophilized extract (used as a control). Colloidal silicon dioxide (Tixosil® 333) and maltodextrin (DE 14) at a 2:1 ratio was added to the concentrated extract before drying (4.4% w/w) to improve the drying performance. The drying variables Ws/Wmax and Tgi have statistically significant influence on total polyphenols and total flavonoid contents of the dried powders. The concentrated extract (on dry basisbeing absolute solid content) showed superior antioxidant activity (AA) compared to both the spouted bed dried and the lyophilized extracts; exhibiting IC50 values of 0.96 ± 0.02, 2.16 ± 0.04 and 3.79 ± 0.05 µg mL1 (DPPH method) and 0.22 ± 0.01, 1.31± 0.01 and 2.54 ± 0.02 µg mL1 (LPO method), respectively. These results of AA are comparable to values obtained for quercetin, a flavonoid compound often used as a reference standard due to its potent antioxidant activity; with IC50 of 1.17 µg mL1 (DPPH) and 0.22 µg mL1 (LPO). However, the dried rosemary extracts are about 13.5 times more concentrated than the initial concentrated extract (dry weight), with a concentration of total flavonoids and polyphenols compounds ranging from 4.3 to 12.3 and from 1.2 to 4.7 times higher than the concentrated extract values (wet basis). The AA per dry product mass was thus significantly higher than the values measured for concentrated extractive solution, irrespective of some losses of AA apparently due to the drying process. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z |
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/1822/66832 |
url |
http://hdl.handle.net/1822/66832 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Souza, Claudia R. F.; Baldim, Iara; Bankole, Victor O.; da Ana, Raquel; Durazzo, Alessandra; Lucarini, Massimo; Cicero, Nicola; Santini, Antonello; Souto, Eliana; Oliveira, Wanderley P., Spouted bed dried Rosmarinus officinalis extract: a novel approach for physicochemical properties and antioxidant activity. Agriculture, 10(8), 349, 2020 20770472 20770472 10.3390/agriculture10080349 https://www.mdpi.com/2077-0472/10/8/349 |
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 |
MDPI AG |
publisher.none.fl_str_mv |
MDPI AG |
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 |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
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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1799132987606958080 |