Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/3244 |
Resumo: | Stevia rebaudiana is a perennial plant, native to South America; it has natural sweeteners (steviol glycosides) on their leaves free of calories, very sweet and could be replaced by sucrose without presenting problems to diabetic people diet. Stevia cultivation is widespread all over the world under different weather conditions and the environmental factors could affect the stevia yield. The aims of this study were to evaluate dry weight and sweetener concentration in Stevia rebaudiana leaves during different periods in the year to determinate the best time for harvesting and to verify the influence of environmental conditions in the sweeteners yield. The first trial was carried out during 2012/2013 agricultural year. In total 120 plants were selected and divided in six groups with 20 plants each. Twelve harvests were performed and the higher yield was reached in December at the first harvest for groups 3, 4 and 2 (292.4; 285.2 and 206.7 g m-2, respectively). The sweetener concentrations have differentiated between the date of the harvest and the compounds analysed. The highest concentrations of stevioside (12.16% and 11.36%) and rebaudioside C (2.95% e 1.95%) were found during the harvest in January while the sweetener rebaudioside A, the highest concentrations were 7.01%; 6.16% and 6.15% in December, February and March, respectively. The heighest stevioside concentrations (per cent) (12.16% and 11.36%) and rebaudioside C (2.95% and 1.95%) were found to the harvest done in January, whereas to rebaudioside A, the heighest concentration were in December (7.01%); February (6.16%) and March (6.15%). Photoperiod has influenced the number of days for each harvest as well as the sweetener concentration on the leaves. The second trial seven genotypes were tested by plants already established on the field. The higher yield of dry mass was found during the harvest in March and the sweetener concentrations have decreased to the second harvest comparing to the first one. The highest sweetener concentrations of stevioside in the first harvest were with the genotypes C1, C4 and C8 (11.24; 11.14 and 10.32%, respectively) and genotype C6 has presented the highest rebaudioside A and C concentrations (8.94 and 1.96% respectively). |
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2017-04-272017-04-272014-12-16PEREIRA, Carlise. Dry weight and sweetener yield in stevia leaves related to harvest times.. 2014. 57 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014.http://repositorio.ufsm.br/handle/1/3244Stevia rebaudiana is a perennial plant, native to South America; it has natural sweeteners (steviol glycosides) on their leaves free of calories, very sweet and could be replaced by sucrose without presenting problems to diabetic people diet. Stevia cultivation is widespread all over the world under different weather conditions and the environmental factors could affect the stevia yield. The aims of this study were to evaluate dry weight and sweetener concentration in Stevia rebaudiana leaves during different periods in the year to determinate the best time for harvesting and to verify the influence of environmental conditions in the sweeteners yield. The first trial was carried out during 2012/2013 agricultural year. In total 120 plants were selected and divided in six groups with 20 plants each. Twelve harvests were performed and the higher yield was reached in December at the first harvest for groups 3, 4 and 2 (292.4; 285.2 and 206.7 g m-2, respectively). The sweetener concentrations have differentiated between the date of the harvest and the compounds analysed. The highest concentrations of stevioside (12.16% and 11.36%) and rebaudioside C (2.95% e 1.95%) were found during the harvest in January while the sweetener rebaudioside A, the highest concentrations were 7.01%; 6.16% and 6.15% in December, February and March, respectively. The heighest stevioside concentrations (per cent) (12.16% and 11.36%) and rebaudioside C (2.95% and 1.95%) were found to the harvest done in January, whereas to rebaudioside A, the heighest concentration were in December (7.01%); February (6.16%) and March (6.15%). Photoperiod has influenced the number of days for each harvest as well as the sweetener concentration on the leaves. The second trial seven genotypes were tested by plants already established on the field. The higher yield of dry mass was found during the harvest in March and the sweetener concentrations have decreased to the second harvest comparing to the first one. The highest sweetener concentrations of stevioside in the first harvest were with the genotypes C1, C4 and C8 (11.24; 11.14 and 10.32%, respectively) and genotype C6 has presented the highest rebaudioside A and C concentrations (8.94 and 1.96% respectively).Originária da América do Sul, Stevia rebaudiana é uma planta arbustiva perene que possui edulcorantes naturais (glicosídeos de esteviol) com alto poder adoçante em suas folhas, livre de calorias, podendo substituir a sacarose sem apresentar problemas na dieta de pessoas diabéticas. O cultivo de estévia é difundido em muitos países e os fatores climáticos podem influenciar significativamente o resultado de produtividade desta cultura. Os objetivos deste estudo foram avaliar massa seca e concetração de edulcorantes em folhas de estévia (Stevia rebaudiana) em diferentes períodos do ano para determinar a melhor época para a colheita e, verificar a influência dos fatores climáticos na quantidade dos edulcorantes. Os experimentos foram realizados nos anos agrícolas 2011/2012 e 2012/2013. No primeiro experimento 120 plantas foram divididas em seis grupos de 20 plantas cada. Doze cortes foram realizados, sendo a maior produtividade alcançada no mês de dezembro nos primeiros cortes dos grupos 3, 4 e 2 (292,4; 285,2 e 206,7 g m-2, respectivamente). A concentração dos edulcorantes nas folhas de estévia variou entre os períodos dos cortes e entre os compostos analisados. As concentrações mais altas de esteviosídeo (12,16% e 11,36%) e rebaudiosídeo C (2,95% e 1,95%) foram nas colheitas realizadas em janeiro, enquanto que para o rebaudiosídeo A (7,01%; 6,16% e 6,15%), as maiores porcentagens foram alcançadas nos meses de dezembro, fevereiro e março. O fotoperíodo influenciou o número de dias para o corte realizado bem como a concentração de edulcorantes nas folhas. No segundo experimento foram testados sete genótipos selecionados a partir de plantas já estabelecidas. A maior produtividade de massa seca foi encontrada no corte realizado no mês de março e, as concentrações dos edulcorantes diminuíram no segundo corte em todos os genótipos. As porcentagens mais altas de esteviosídeo no primeiro corte foram nos genótipos C1, C4 e C8 (11,24; 11,14 e 10,32%, respectivamente) e, o genótipo C6 apresentou as maiores concentrações de rebaudiosídeo A e C (8,94 e 1,96% respectivamente).Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em AgronomiaUFSMBRAgronomiaStevia rebaudianaFatores climáticosGlicosídeos de esteviolStevia rebaudianaEnvironmental conditionsSteviol glycosidesCNPQ::CIENCIAS AGRARIAS::AGRONOMIAProdutividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheitaDry weight and sweetener yield in stevia leaves related to harvest times.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisStorck, Lindolfohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788328Y4Lopes, Sidinei Joséhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4700757Z3Bisognin, Dilson Antôniohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4791129Y6Storck, Cátia Reginahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4739044D9Oliveira, Paulo Henrique dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4794270U5http://lattes.cnpq.br/1558243453377889Pereira, Carlise500100000009400300300300300300300f3462709-c1c4-41bb-8e28-98b746a2b958ece6385a-8779-4633-a28a-aefba3734c55e3414408-e6b0-427d-a9e9-200c1243c22ea13554d7-5fa4-484e-a9ad-3ce710a9b8a2f3a73c92-ec4f-4466-b6ec-449a0a3a093f309ff064-639e-4f56-9987-54bb4800a1fdinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALPEREIRA, CARLISE.pdfapplication/pdf958172http://repositorio.ufsm.br/bitstream/1/3244/1/PEREIRA%2c%20CARLISE.pdfd41a53f8538697876f0d20fe439b8658MD51TEXTPEREIRA, CARLISE.pdf.txtPEREIRA, CARLISE.pdf.txtExtracted texttext/plain107960http://repositorio.ufsm.br/bitstream/1/3244/2/PEREIRA%2c%20CARLISE.pdf.txt13b13b688828248a8a3776bce159ce73MD52THUMBNAILPEREIRA, CARLISE.pdf.jpgPEREIRA, CARLISE.pdf.jpgIM Thumbnailimage/jpeg4835http://repositorio.ufsm.br/bitstream/1/3244/3/PEREIRA%2c%20CARLISE.pdf.jpgdc4cd4f89020cbb892732b54dd35e212MD531/32442017-07-25 10:53:02.142oai:repositorio.ufsm.br:1/3244Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-07-25T13:53:02Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
dc.title.alternative.eng.fl_str_mv |
Dry weight and sweetener yield in stevia leaves related to harvest times. |
title |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
spellingShingle |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita Pereira, Carlise Stevia rebaudiana Fatores climáticos Glicosídeos de esteviol Stevia rebaudiana Environmental conditions Steviol glycosides CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
title_full |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
title_fullStr |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
title_full_unstemmed |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
title_sort |
Produtividade de massa seca e edulcorantes em folhas de estévia relacionados à época de colheita |
author |
Pereira, Carlise |
author_facet |
Pereira, Carlise |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Storck, Lindolfo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788328Y4 |
dc.contributor.referee1.fl_str_mv |
Lopes, Sidinei José |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4700757Z3 |
dc.contributor.referee2.fl_str_mv |
Bisognin, Dilson Antônio |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4791129Y6 |
dc.contributor.referee3.fl_str_mv |
Storck, Cátia Regina |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4739044D9 |
dc.contributor.referee4.fl_str_mv |
Oliveira, Paulo Henrique de |
dc.contributor.referee4Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4794270U5 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1558243453377889 |
dc.contributor.author.fl_str_mv |
Pereira, Carlise |
contributor_str_mv |
Storck, Lindolfo Lopes, Sidinei José Bisognin, Dilson Antônio Storck, Cátia Regina Oliveira, Paulo Henrique de |
dc.subject.por.fl_str_mv |
Stevia rebaudiana Fatores climáticos Glicosídeos de esteviol |
topic |
Stevia rebaudiana Fatores climáticos Glicosídeos de esteviol Stevia rebaudiana Environmental conditions Steviol glycosides CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Stevia rebaudiana Environmental conditions Steviol glycosides |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
Stevia rebaudiana is a perennial plant, native to South America; it has natural sweeteners (steviol glycosides) on their leaves free of calories, very sweet and could be replaced by sucrose without presenting problems to diabetic people diet. Stevia cultivation is widespread all over the world under different weather conditions and the environmental factors could affect the stevia yield. The aims of this study were to evaluate dry weight and sweetener concentration in Stevia rebaudiana leaves during different periods in the year to determinate the best time for harvesting and to verify the influence of environmental conditions in the sweeteners yield. The first trial was carried out during 2012/2013 agricultural year. In total 120 plants were selected and divided in six groups with 20 plants each. Twelve harvests were performed and the higher yield was reached in December at the first harvest for groups 3, 4 and 2 (292.4; 285.2 and 206.7 g m-2, respectively). The sweetener concentrations have differentiated between the date of the harvest and the compounds analysed. The highest concentrations of stevioside (12.16% and 11.36%) and rebaudioside C (2.95% e 1.95%) were found during the harvest in January while the sweetener rebaudioside A, the highest concentrations were 7.01%; 6.16% and 6.15% in December, February and March, respectively. The heighest stevioside concentrations (per cent) (12.16% and 11.36%) and rebaudioside C (2.95% and 1.95%) were found to the harvest done in January, whereas to rebaudioside A, the heighest concentration were in December (7.01%); February (6.16%) and March (6.15%). Photoperiod has influenced the number of days for each harvest as well as the sweetener concentration on the leaves. The second trial seven genotypes were tested by plants already established on the field. The higher yield of dry mass was found during the harvest in March and the sweetener concentrations have decreased to the second harvest comparing to the first one. The highest sweetener concentrations of stevioside in the first harvest were with the genotypes C1, C4 and C8 (11.24; 11.14 and 10.32%, respectively) and genotype C6 has presented the highest rebaudioside A and C concentrations (8.94 and 1.96% respectively). |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-12-16 |
dc.date.accessioned.fl_str_mv |
2017-04-27 |
dc.date.available.fl_str_mv |
2017-04-27 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PEREIRA, Carlise. Dry weight and sweetener yield in stevia leaves related to harvest times.. 2014. 57 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/3244 |
identifier_str_mv |
PEREIRA, Carlise. Dry weight and sweetener yield in stevia leaves related to harvest times.. 2014. 57 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014. |
url |
http://repositorio.ufsm.br/handle/1/3244 |
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por |
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por |
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500100000009 |
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400 300 300 300 300 300 300 |
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Universidade Federal de Santa Maria |
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Programa de Pós-Graduação em Agronomia |
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UFSM |
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BR |
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Agronomia |
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Universidade Federal de Santa Maria |
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