Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria

Detalhes bibliográficos
Autor(a) principal: Jorge, Ana Carolina Murback
Data de Publicação: 2022
Tipo de documento: Trabalho de conclusão de curso
Idioma: por
Título da fonte: Repositório Institucional da UFSCAR
Texto Completo: https://repositorio.ufscar.br/handle/ufscar/16092
Resumo: The latex of Hevea brasiliensis is the main feedstock raw material for obtaining natural rubber. Latex extraction is completely manual and is the activity with the highest percentage cost participation in the rubber tree production. There are different systems and intensities of tapping, but it is necessary to highlight those that present better productivity, lower cost and provide better latex quality and uniformity. The present work aimed to evaluate natural rubber parameters of the RRIM 600 clone under five different tapping frequencies. Two identical experiments were installed, differing only from the tapping agent. The study was held in the northwest region of the state of Sao Paulo, in the county of Jaci, under treatment of the following tapping frequencies: 1 /2S d/1 7d/7 10m/y; 1 /2S d/2 7d/7 10m/y; 1 /2S d/3 7d/7 10m/y; 1 /2S d/4 7d/7 10m/y and 1 /2S d/5 7d/7 10m/y. From four coagulated latex collections, in which the dry rubber content (DRC) and the plasticity retention index (PRI) were analyzed. The dry rubber content showed no statistical difference between the different treatments. Lower means were observed in the last collection in the treatment 1 /2S d/3 7d/7 10m/y of experiment 1 and in treatments 1 /2S d/1 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y of experiment 2. All averages of plasticity retention index were below the minimum value specified by the national and international standard. In this parameter, lower means of PRI were noted in the most intense tapping frequencies. In experiment 1, the 1 /2S d/1 7d/7 10m/y treatment presented lower mean in collection 2. In experiment 2, in collection 3, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/3 7d/7 10m/y 10m/y presented lower means. Also in experiment 2, in collection 4, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y presented lower means,
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spelling Jorge, Ana Carolina MurbackUrashima, Alfredo Seiitihttp://lattes.cnpq.br/1289170266294665d9bc4b61-58c5-46a7-aef3-d8a2822a01da2022-05-09T20:14:20Z2022-05-09T20:14:20Z2022-04-26JORGE, Ana Carolina Murback. Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia Agronômica) – Universidade Federal de São Carlos, Araras, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16092.https://repositorio.ufscar.br/handle/ufscar/16092The latex of Hevea brasiliensis is the main feedstock raw material for obtaining natural rubber. Latex extraction is completely manual and is the activity with the highest percentage cost participation in the rubber tree production. There are different systems and intensities of tapping, but it is necessary to highlight those that present better productivity, lower cost and provide better latex quality and uniformity. The present work aimed to evaluate natural rubber parameters of the RRIM 600 clone under five different tapping frequencies. Two identical experiments were installed, differing only from the tapping agent. The study was held in the northwest region of the state of Sao Paulo, in the county of Jaci, under treatment of the following tapping frequencies: 1 /2S d/1 7d/7 10m/y; 1 /2S d/2 7d/7 10m/y; 1 /2S d/3 7d/7 10m/y; 1 /2S d/4 7d/7 10m/y and 1 /2S d/5 7d/7 10m/y. From four coagulated latex collections, in which the dry rubber content (DRC) and the plasticity retention index (PRI) were analyzed. The dry rubber content showed no statistical difference between the different treatments. Lower means were observed in the last collection in the treatment 1 /2S d/3 7d/7 10m/y of experiment 1 and in treatments 1 /2S d/1 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y of experiment 2. All averages of plasticity retention index were below the minimum value specified by the national and international standard. In this parameter, lower means of PRI were noted in the most intense tapping frequencies. In experiment 1, the 1 /2S d/1 7d/7 10m/y treatment presented lower mean in collection 2. In experiment 2, in collection 3, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/3 7d/7 10m/y 10m/y presented lower means. Also in experiment 2, in collection 4, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y presented lower means,O látex da Hevea brasiliensis é a principal matéria-prima para obtenção da borracha natural. A extração do látex é totalmente manual e é a atividade de maior participação percentual no custo de produção da cultura da seringueira. Existem diferentes sistemas e intensidades de sangria, porém é preciso destacar aqueles que apresentem melhor produtividade, menor custo e proporcionem melhor qualidade e uniformidade do látex. Pelo exposto, o presente trabalho teve como objetivo avaliar parâmetros da borracha natural do clone RRIM 600 sob cinco diferentes frequências de sangria. Foi realizada a instalação de dois experimentos idênticos, diferindo somente o realizador da sangria. O estudo foi feito na região noroeste do estado de São Paulo, no município de Jaci, sob tratamento das seguintes frequências de sangria: 1 /2S d/1 7d/7 10m/y; 1 /2S d/2 7d/7 10m/y; 1 /2S d/3 7d/7 10m/y; 1 /2S d/4 7d/7 10m/y e 1 /2S d/5 7d/7 10m/y. A partir de quatro coletas de látex coagulado, analisou-se o teor de borracha seca (DRC) e o índice de retenção de plasticidade (PRI). O teor de borracha seca não apresentou diferença estatística entre os diferentes tratamentos. Observou-se menores médias na última coleta no tratamento 1 /2S d/3 7d/7 10m/y do experimento 1 e nos tratamentos 1 /2S d/1 7d/7 10m/y e 1 /2S d/4 7d/7 10m/y do experimento 2.Todas as médias de índice de retenção de plasticidade ficaram abaixo do valor mínimo especificado pela norma nacional e pelo padrão internacional. Neste parâmetro, notou-se menores médias de PRI nas frequências de sangria mais intensas. No experimento 1, o tratamento 1 /2S d/1 7d/7 10m/y apresentou menor média na coleta 2. No experimento 2, na coleta 3, os tratamentos 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y e 1 /2S d/3 7d/7 10m/y apresentaram menores médias. E também no experimento 2, na coleta 4, os tratamentos 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y e 1 /2S d/4 7d/7 10m/y apresentaram menores médias.Não recebi financiamentoporUniversidade Federal de São CarlosCâmpus ArarasEngenharia Agronômica - EAg-ArUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessHevea brasiliensisLatéxEnsaios padrõesQualidadeStandard testQualiityCIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIAAvaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangriaEvaluation of main physical and technological parameters of natural rubber from clone RRIM 600 under different tapping frequencyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis6006001b341a0b-c61f-4651-a739-41312e3fbf11reponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALANA CAROLINA MURBACK JORGE.pdfANA CAROLINA MURBACK JORGE.pdfapplication/pdf7859431https://repositorio.ufscar.br/bitstream/ufscar/16092/1/ANA%20CAROLINA%20MURBACK%20JORGE.pdf243c639406c28f263a297c0377b2f93bMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/16092/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52TEXTANA CAROLINA MURBACK JORGE.pdf.txtANA CAROLINA MURBACK JORGE.pdf.txtExtracted texttext/plain39https://repositorio.ufscar.br/bitstream/ufscar/16092/3/ANA%20CAROLINA%20MURBACK%20JORGE.pdf.txt0e831d9ef90e6cc63a61c5dbdfdd11e0MD53THUMBNAILANA CAROLINA MURBACK JORGE.pdf.jpgANA CAROLINA MURBACK JORGE.pdf.jpgIM Thumbnailimage/jpeg7808https://repositorio.ufscar.br/bitstream/ufscar/16092/4/ANA%20CAROLINA%20MURBACK%20JORGE.pdf.jpg962b923a5826b5c9766e86241ba48fd2MD54ufscar/160922023-09-18 18:32:27.099oai:repositorio.ufscar.br:ufscar/16092Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:27Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false
dc.title.por.fl_str_mv Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
dc.title.alternative.eng.fl_str_mv Evaluation of main physical and technological parameters of natural rubber from clone RRIM 600 under different tapping frequency
title Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
spellingShingle Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
Jorge, Ana Carolina Murback
Hevea brasiliensis
Latéx
Ensaios padrões
Qualidade
Standard test
Qualiity
CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
title_short Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
title_full Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
title_fullStr Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
title_full_unstemmed Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
title_sort Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria
author Jorge, Ana Carolina Murback
author_facet Jorge, Ana Carolina Murback
author_role author
dc.contributor.author.fl_str_mv Jorge, Ana Carolina Murback
dc.contributor.advisor1.fl_str_mv Urashima, Alfredo Seiiti
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/1289170266294665
dc.contributor.authorID.fl_str_mv d9bc4b61-58c5-46a7-aef3-d8a2822a01da
contributor_str_mv Urashima, Alfredo Seiiti
dc.subject.por.fl_str_mv Hevea brasiliensis
Latéx
Ensaios padrões
topic Hevea brasiliensis
Latéx
Ensaios padrões
Qualidade
Standard test
Qualiity
CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
dc.subject.eng.fl_str_mv Qualidade
Standard test
Qualiity
dc.subject.cnpq.fl_str_mv CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
description The latex of Hevea brasiliensis is the main feedstock raw material for obtaining natural rubber. Latex extraction is completely manual and is the activity with the highest percentage cost participation in the rubber tree production. There are different systems and intensities of tapping, but it is necessary to highlight those that present better productivity, lower cost and provide better latex quality and uniformity. The present work aimed to evaluate natural rubber parameters of the RRIM 600 clone under five different tapping frequencies. Two identical experiments were installed, differing only from the tapping agent. The study was held in the northwest region of the state of Sao Paulo, in the county of Jaci, under treatment of the following tapping frequencies: 1 /2S d/1 7d/7 10m/y; 1 /2S d/2 7d/7 10m/y; 1 /2S d/3 7d/7 10m/y; 1 /2S d/4 7d/7 10m/y and 1 /2S d/5 7d/7 10m/y. From four coagulated latex collections, in which the dry rubber content (DRC) and the plasticity retention index (PRI) were analyzed. The dry rubber content showed no statistical difference between the different treatments. Lower means were observed in the last collection in the treatment 1 /2S d/3 7d/7 10m/y of experiment 1 and in treatments 1 /2S d/1 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y of experiment 2. All averages of plasticity retention index were below the minimum value specified by the national and international standard. In this parameter, lower means of PRI were noted in the most intense tapping frequencies. In experiment 1, the 1 /2S d/1 7d/7 10m/y treatment presented lower mean in collection 2. In experiment 2, in collection 3, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/3 7d/7 10m/y 10m/y presented lower means. Also in experiment 2, in collection 4, treatments 1 /2S d/1 7d/7 10m/y, 1 /2S d/2 7d/7 10m/y and 1 /2S d/4 7d/7 10m/y presented lower means,
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-05-09T20:14:20Z
dc.date.available.fl_str_mv 2022-05-09T20:14:20Z
dc.date.issued.fl_str_mv 2022-04-26
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dc.identifier.citation.fl_str_mv JORGE, Ana Carolina Murback. Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia Agronômica) – Universidade Federal de São Carlos, Araras, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16092.
dc.identifier.uri.fl_str_mv https://repositorio.ufscar.br/handle/ufscar/16092
identifier_str_mv JORGE, Ana Carolina Murback. Avaliação dos principais parâmetros físicos e tecnológicos da borracha natural do clone RRIM 600 em diferentes frequências de sangria. 2022. Trabalho de Conclusão de Curso (Graduação em Engenharia Agronômica) – Universidade Federal de São Carlos, Araras, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/16092.
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http://creativecommons.org/licenses/by-nc-nd/3.0/br/
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dc.publisher.none.fl_str_mv Universidade Federal de São Carlos
Câmpus Araras
Engenharia Agronômica - EAg-Ar
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publisher.none.fl_str_mv Universidade Federal de São Carlos
Câmpus Araras
Engenharia Agronômica - EAg-Ar
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