Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/15066 |
Resumo: | Due to the great importance of agriculture in human activities and the economy, studies have been directed in order to increase the efficiency of agricultural production. This project aimed to increase zinc oxide (ZnO) solubility by decreasing the size of the particles and further place them in starch sachets to work as a release system. To obtain nanoparticles, top-down and bottom-up approaches were evaluated using high energy grinding (HEG) and synthetic methods. The results obtained after grinding showed that the process carried out for 16 h allowed the obtaining of nanoparticles with an average diameter of 71 ± 41 nm, with smaller size and greater homogeneity, compared to the commercial one (174 ± 95 nm). Regarding solubility, the ground nanoparticles proved to be more efficient than the synthesized and commercial ones, since they promoted the release of 81 ± 4% of Zn2+ ions in 24 h. The TPS processing was carried out in an intensive mixer in an internal chamber and, subsequently, thermo-pressed. For developing the sachets, a corn starch matrix was used, because of this material biodegradability. Due to hydrophilicity and low mechanical resistance of starch, montmorillonite clay (MMT) was evaluated as reinforcement. The starch sachet with 1% MMT increased the barrier property by 24% and also improved the mechanical features, increasing the tensile and elongation resistance by 52% and 57%, respectively. The 24 h release essay of ZnO from both TPS (82 ±12%) and TPS reinforced with 1% MMT sachets (66 ± 11%) showed similar behavior to the free ZnO profile. Therefore, it was possible to obtain a starch sachet capable of ZnO fertilizer packaging, enabling to minimize losses through aerial dispersion. |
id |
SCAR_fdaa935de897f9a9890a9530d4240b0b |
---|---|
oai_identifier_str |
oai:repositorio.ufscar.br:ufscar/15066 |
network_acronym_str |
SCAR |
network_name_str |
Repositório Institucional da UFSCAR |
repository_id_str |
4322 |
spelling |
Peres, Laiza Gabriela SanchesMattoso, Luiz Henrique Capparellihttp://lattes.cnpq.br/5839043594908917Paris, Elaine Cristinahttp://lattes.cnpq.br/8475640212486290http://lattes.cnpq.br/05781361160072164b04bfbe-1219-4d9c-87e8-d4f7cfef90ef2021-10-29T12:31:38Z2021-10-29T12:31:38Z2020-08-31PERES, Laiza Gabriela Sanches. Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco. 2020. Dissertação (Mestrado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2020. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15066.https://repositorio.ufscar.br/handle/ufscar/15066Due to the great importance of agriculture in human activities and the economy, studies have been directed in order to increase the efficiency of agricultural production. This project aimed to increase zinc oxide (ZnO) solubility by decreasing the size of the particles and further place them in starch sachets to work as a release system. To obtain nanoparticles, top-down and bottom-up approaches were evaluated using high energy grinding (HEG) and synthetic methods. The results obtained after grinding showed that the process carried out for 16 h allowed the obtaining of nanoparticles with an average diameter of 71 ± 41 nm, with smaller size and greater homogeneity, compared to the commercial one (174 ± 95 nm). Regarding solubility, the ground nanoparticles proved to be more efficient than the synthesized and commercial ones, since they promoted the release of 81 ± 4% of Zn2+ ions in 24 h. The TPS processing was carried out in an intensive mixer in an internal chamber and, subsequently, thermo-pressed. For developing the sachets, a corn starch matrix was used, because of this material biodegradability. Due to hydrophilicity and low mechanical resistance of starch, montmorillonite clay (MMT) was evaluated as reinforcement. The starch sachet with 1% MMT increased the barrier property by 24% and also improved the mechanical features, increasing the tensile and elongation resistance by 52% and 57%, respectively. The 24 h release essay of ZnO from both TPS (82 ±12%) and TPS reinforced with 1% MMT sachets (66 ± 11%) showed similar behavior to the free ZnO profile. Therefore, it was possible to obtain a starch sachet capable of ZnO fertilizer packaging, enabling to minimize losses through aerial dispersion.A grande importância da agricultura nas atividades humanas e na economia, tem direcionado estudos com o intuito de aumentar a eficiência da produção agrícola. O presente projeto teve como objetivo aumentar a solubilidade de partículas do óxido de zinco (ZnO) por meio da diminuição do tamanho das partículas, acondicionando-as em sachês de amido a fim de obter um sistema de liberação. Para obtenção das nanopartículas foram avaliadas as metodologias top-down e bottom-up a partir de moagem de alta energia (MAE) e rotas de síntese. Nos resultados de moagem, observou-se que o processo realizado por 16 h permitiu a obtenção de nanopartículas com diâmetro médio de 71 ± 41 nm, com menor tamanho e maior homogeneidade, comparado ao comercial (174 ± 95 nm). Em relação à solubilidade, as nanopartículas submetidas à moagem foram mais solúveis do que as sintetizadas e o ZnO comercial, visto que promoveu a liberação de 81 ± 4% dos íons Zn2+ em 24 h. O processamento do TPS foi realizado em misturador intensivo em câmara interna e, posteriormente, termoprensado. No desenvolvimento dos sachês foi empregada uma matriz de amido de milho, devido as características de biodegradabilidade. Devido a hidrofilicidade e baixa resistência mecânica do amido, foi avaliado o uso da argila montmorilonita (MMT) como reforço. O filme de amido com 1% de MMT, promoveu o aumento das propriedades de barreira (em 24%) e mecânicas, aumentando a resistência à tração e alongamento em 52% e 57%, respectivamente. No teste de solubilidade para o ZnO moído acondicionado, observou-se comportamento similar ao ZnO livre, no mesmo período, para o TPS (82 ± 12%) e para TPS reforçado com 1% MMT (66 ± 11%), após 24 h, devido ao inchamento e rompimento do sachê. Portanto, foi possível obter um sachê capaz de acondicionar o fertilizante ZnO, minimizando perdas por dispersão aérea.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CNPq: 133631/2019-2porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessFertilizanteNanopartículasAmidoMontmorilonitaLiberaçãoBiodegradávelZnOFertilizerNanoparticlesStarchMontmorilloniteReleaseBiodegradableENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOSDesenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zincoDevelopment of biodegradable sachets based on starch for release of micronutriente zincinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis600600cd4a0e5b-b40b-46f6-8c76-2c2bcc3239a9reponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALLaiza Gabriela Sanches Peres - Dissertação.pdfLaiza Gabriela Sanches Peres - Dissertação.pdfDissertação PDFapplication/pdf1824679https://repositorio.ufscar.br/bitstream/ufscar/15066/1/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdfbca5fd7aa5eee9f6a318ff7d15afd9dfMD51BCO carta comprovante autoarquivamento P.pdfBCO carta comprovante autoarquivamento P.pdfCarta comprovanteapplication/pdf1119721https://repositorio.ufscar.br/bitstream/ufscar/15066/2/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf2df543e9ccfaf6d33e7500a4a85f4263MD52CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/15066/3/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD53TEXTLaiza Gabriela Sanches Peres - Dissertação.pdf.txtLaiza Gabriela Sanches Peres - Dissertação.pdf.txtExtracted texttext/plain134810https://repositorio.ufscar.br/bitstream/ufscar/15066/4/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdf.txt0bcce4fcb9a8b122357f4e83be319e7dMD54BCO carta comprovante autoarquivamento P.pdf.txtBCO carta comprovante autoarquivamento P.pdf.txtExtracted texttext/plain1https://repositorio.ufscar.br/bitstream/ufscar/15066/6/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf.txt68b329da9893e34099c7d8ad5cb9c940MD56THUMBNAILLaiza Gabriela Sanches Peres - Dissertação.pdf.jpgLaiza Gabriela Sanches Peres - Dissertação.pdf.jpgIM Thumbnailimage/jpeg6328https://repositorio.ufscar.br/bitstream/ufscar/15066/5/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdf.jpg2627001459c15a80ab4f0d5dee9a1eb5MD55BCO carta comprovante autoarquivamento P.pdf.jpgBCO carta comprovante autoarquivamento P.pdf.jpgIM Thumbnailimage/jpeg14172https://repositorio.ufscar.br/bitstream/ufscar/15066/7/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf.jpg60bc5d4fa398b58d80c9600fc11ab36eMD57ufscar/150662023-09-18 18:32:19.817oai:repositorio.ufscar.br:ufscar/15066Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:19Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
dc.title.alternative.eng.fl_str_mv |
Development of biodegradable sachets based on starch for release of micronutriente zinc |
title |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
spellingShingle |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco Peres, Laiza Gabriela Sanches Fertilizante Nanopartículas Amido Montmorilonita Liberação Biodegradável ZnO Fertilizer Nanoparticles Starch Montmorillonite Release Biodegradable ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
title_short |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
title_full |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
title_fullStr |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
title_full_unstemmed |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
title_sort |
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco |
author |
Peres, Laiza Gabriela Sanches |
author_facet |
Peres, Laiza Gabriela Sanches |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/0578136116007216 |
dc.contributor.author.fl_str_mv |
Peres, Laiza Gabriela Sanches |
dc.contributor.advisor1.fl_str_mv |
Mattoso, Luiz Henrique Capparelli |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5839043594908917 |
dc.contributor.advisor-co1.fl_str_mv |
Paris, Elaine Cristina |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8475640212486290 |
dc.contributor.authorID.fl_str_mv |
4b04bfbe-1219-4d9c-87e8-d4f7cfef90ef |
contributor_str_mv |
Mattoso, Luiz Henrique Capparelli Paris, Elaine Cristina |
dc.subject.por.fl_str_mv |
Fertilizante Nanopartículas Amido Montmorilonita Liberação Biodegradável ZnO |
topic |
Fertilizante Nanopartículas Amido Montmorilonita Liberação Biodegradável ZnO Fertilizer Nanoparticles Starch Montmorillonite Release Biodegradable ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
dc.subject.eng.fl_str_mv |
Fertilizer Nanoparticles Starch Montmorillonite Release Biodegradable |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
description |
Due to the great importance of agriculture in human activities and the economy, studies have been directed in order to increase the efficiency of agricultural production. This project aimed to increase zinc oxide (ZnO) solubility by decreasing the size of the particles and further place them in starch sachets to work as a release system. To obtain nanoparticles, top-down and bottom-up approaches were evaluated using high energy grinding (HEG) and synthetic methods. The results obtained after grinding showed that the process carried out for 16 h allowed the obtaining of nanoparticles with an average diameter of 71 ± 41 nm, with smaller size and greater homogeneity, compared to the commercial one (174 ± 95 nm). Regarding solubility, the ground nanoparticles proved to be more efficient than the synthesized and commercial ones, since they promoted the release of 81 ± 4% of Zn2+ ions in 24 h. The TPS processing was carried out in an intensive mixer in an internal chamber and, subsequently, thermo-pressed. For developing the sachets, a corn starch matrix was used, because of this material biodegradability. Due to hydrophilicity and low mechanical resistance of starch, montmorillonite clay (MMT) was evaluated as reinforcement. The starch sachet with 1% MMT increased the barrier property by 24% and also improved the mechanical features, increasing the tensile and elongation resistance by 52% and 57%, respectively. The 24 h release essay of ZnO from both TPS (82 ±12%) and TPS reinforced with 1% MMT sachets (66 ± 11%) showed similar behavior to the free ZnO profile. Therefore, it was possible to obtain a starch sachet capable of ZnO fertilizer packaging, enabling to minimize losses through aerial dispersion. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-08-31 |
dc.date.accessioned.fl_str_mv |
2021-10-29T12:31:38Z |
dc.date.available.fl_str_mv |
2021-10-29T12:31:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PERES, Laiza Gabriela Sanches. Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco. 2020. Dissertação (Mestrado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2020. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15066. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/15066 |
identifier_str_mv |
PERES, Laiza Gabriela Sanches. Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco. 2020. Dissertação (Mestrado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2020. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15066. |
url |
https://repositorio.ufscar.br/handle/ufscar/15066 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.confidence.fl_str_mv |
600 600 |
dc.relation.authority.fl_str_mv |
cd4a0e5b-b40b-46f6-8c76-2c2bcc3239a9 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFSCAR instname:Universidade Federal de São Carlos (UFSCAR) instacron:UFSCAR |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
UFSCAR |
institution |
UFSCAR |
reponame_str |
Repositório Institucional da UFSCAR |
collection |
Repositório Institucional da UFSCAR |
bitstream.url.fl_str_mv |
https://repositorio.ufscar.br/bitstream/ufscar/15066/1/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdf https://repositorio.ufscar.br/bitstream/ufscar/15066/2/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf https://repositorio.ufscar.br/bitstream/ufscar/15066/3/license_rdf https://repositorio.ufscar.br/bitstream/ufscar/15066/4/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdf.txt https://repositorio.ufscar.br/bitstream/ufscar/15066/6/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf.txt https://repositorio.ufscar.br/bitstream/ufscar/15066/5/Laiza%20Gabriela%20Sanches%20Peres%20-%20Disserta%c3%a7%c3%a3o.pdf.jpg https://repositorio.ufscar.br/bitstream/ufscar/15066/7/BCO%20carta%20comprovante%20autoarquivamento%20P.pdf.jpg |
bitstream.checksum.fl_str_mv |
bca5fd7aa5eee9f6a318ff7d15afd9df 2df543e9ccfaf6d33e7500a4a85f4263 e39d27027a6cc9cb039ad269a5db8e34 0bcce4fcb9a8b122357f4e83be319e7d 68b329da9893e34099c7d8ad5cb9c940 2627001459c15a80ab4f0d5dee9a1eb5 60bc5d4fa398b58d80c9600fc11ab36e |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
|
_version_ |
1802136397327368192 |