Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.17660/ActaHortic.2005.688.36 http://hdl.handle.net/11449/227188 |
Resumo: | Onions (Allium cepa L.) are grown in different parts of the Brazilian territory and are considered the third most important vegetable crop cultivated in the country, only behind potatoes and tomatoes. The present work was carried out aiming to evaluate the postharvest quality of twelve different onion cultivars grown in the Southeast of Brazil. Onions of the cultivars Adocicada', 'Branca', 'Picante' and 'Roxa' were harvested in commercial fields and the cultivars 'Princesa', 'Serrana', 'Bulbo duplo', 'Granex 33', 'XP 6803', 'XP 8418', 'RP 6010' and 'Superex' were obtained in experimental fields. After harvest, bulbs were taken to the postharvest laboratory and evaluated for total soluble solids, titratable acidity, and pungency (aliinase activity). For total soluble solids 'Superex' had the lowest sugar content (5.4°Brix) whereas the cultivar named 'Picante' showed the highest Brix (11.0°Brix) among the studied materials. For titratable acidity, it was verified that 'Serrana' had the lowest acid content (0.094 g piruvic acid.100 g-1 FW) whereas 'Branca' showed the highest content of organic acids. When pungency was evaluated it was verified that aliinase activity varied from 1.37 μg piruvic acid. 100 g-1 FW for 'Adocicada' to 12.18 μg piruvic acid.100 g-1 FW for 'Roxa', which was considered to have hot pungency (high alliinase activity and low TSS/TA), whereas 'Bulbo duplo' was evaluated as pungent (high alliinase activity and TSS/TA). The combination of the studied characteristics indicated that an onion with high pungency must have high aliinase activity and titratable acidity, whereas sweet onions shall have high soluble solids contents and low aliinase activity. Based on this information, 'Branca' bulbs were considered acids (weak pungency and high acidity), whereas 'Adocicada', 'Princesa', and 'Serrana' bulbs are sweet, due to low alliinase activity and titratable acidity. 'Superex', 'XP 6803', 'Granex 33' and 'Picante' had a moderately pungent flavor (alliinase activity intermediate and low TSS/TA), but 'XP 8418' and 'RP 6010' flavor was evaluated as lightly pungent (Sow alliinase activity TSS/TA). |
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Postharvest quality of twelve onion cultivars grown in the Southeast of BrazilAliinaseAllium cepaPungencyTitratable acidityTotal soluble solidsOnions (Allium cepa L.) are grown in different parts of the Brazilian territory and are considered the third most important vegetable crop cultivated in the country, only behind potatoes and tomatoes. The present work was carried out aiming to evaluate the postharvest quality of twelve different onion cultivars grown in the Southeast of Brazil. Onions of the cultivars Adocicada', 'Branca', 'Picante' and 'Roxa' were harvested in commercial fields and the cultivars 'Princesa', 'Serrana', 'Bulbo duplo', 'Granex 33', 'XP 6803', 'XP 8418', 'RP 6010' and 'Superex' were obtained in experimental fields. After harvest, bulbs were taken to the postharvest laboratory and evaluated for total soluble solids, titratable acidity, and pungency (aliinase activity). For total soluble solids 'Superex' had the lowest sugar content (5.4°Brix) whereas the cultivar named 'Picante' showed the highest Brix (11.0°Brix) among the studied materials. For titratable acidity, it was verified that 'Serrana' had the lowest acid content (0.094 g piruvic acid.100 g-1 FW) whereas 'Branca' showed the highest content of organic acids. When pungency was evaluated it was verified that aliinase activity varied from 1.37 μg piruvic acid. 100 g-1 FW for 'Adocicada' to 12.18 μg piruvic acid.100 g-1 FW for 'Roxa', which was considered to have hot pungency (high alliinase activity and low TSS/TA), whereas 'Bulbo duplo' was evaluated as pungent (high alliinase activity and TSS/TA). The combination of the studied characteristics indicated that an onion with high pungency must have high aliinase activity and titratable acidity, whereas sweet onions shall have high soluble solids contents and low aliinase activity. Based on this information, 'Branca' bulbs were considered acids (weak pungency and high acidity), whereas 'Adocicada', 'Princesa', and 'Serrana' bulbs are sweet, due to low alliinase activity and titratable acidity. 'Superex', 'XP 6803', 'Granex 33' and 'Picante' had a moderately pungent flavor (alliinase activity intermediate and low TSS/TA), but 'XP 8418' and 'RP 6010' flavor was evaluated as lightly pungent (Sow alliinase activity TSS/TA).Department of Technology F.C.A.V.-UNESP, 14884-900 Jaboticabal, S.P.Embrapa Vegetables, 70359-970 Brasilia, DFDepartment of Technology F.C.A.V.-UNESP, 14884-900 Jaboticabal, S.P.Universidade Estadual Paulista (UNESP)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Miguel, A. C.A. [UNESP]Durigan, M. F.B. [UNESP]Durigan, J. F. [UNESP]Moretti, C. L.2022-04-29T07:11:53Z2022-04-29T07:11:53Z2005-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article265-268http://dx.doi.org/10.17660/ActaHortic.2005.688.36Acta Horticulturae, v. 688, p. 265-268.0567-7572http://hdl.handle.net/11449/22718810.17660/ActaHortic.2005.688.362-s2.0-84880032898Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Horticulturaeinfo:eu-repo/semantics/openAccess2024-06-07T15:31:35Zoai:repositorio.unesp.br:11449/227188Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:10:47.040177Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
title |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
spellingShingle |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil Miguel, A. C.A. [UNESP] Aliinase Allium cepa Pungency Titratable acidity Total soluble solids |
title_short |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
title_full |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
title_fullStr |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
title_full_unstemmed |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
title_sort |
Postharvest quality of twelve onion cultivars grown in the Southeast of Brazil |
author |
Miguel, A. C.A. [UNESP] |
author_facet |
Miguel, A. C.A. [UNESP] Durigan, M. F.B. [UNESP] Durigan, J. F. [UNESP] Moretti, C. L. |
author_role |
author |
author2 |
Durigan, M. F.B. [UNESP] Durigan, J. F. [UNESP] Moretti, C. L. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Miguel, A. C.A. [UNESP] Durigan, M. F.B. [UNESP] Durigan, J. F. [UNESP] Moretti, C. L. |
dc.subject.por.fl_str_mv |
Aliinase Allium cepa Pungency Titratable acidity Total soluble solids |
topic |
Aliinase Allium cepa Pungency Titratable acidity Total soluble solids |
description |
Onions (Allium cepa L.) are grown in different parts of the Brazilian territory and are considered the third most important vegetable crop cultivated in the country, only behind potatoes and tomatoes. The present work was carried out aiming to evaluate the postharvest quality of twelve different onion cultivars grown in the Southeast of Brazil. Onions of the cultivars Adocicada', 'Branca', 'Picante' and 'Roxa' were harvested in commercial fields and the cultivars 'Princesa', 'Serrana', 'Bulbo duplo', 'Granex 33', 'XP 6803', 'XP 8418', 'RP 6010' and 'Superex' were obtained in experimental fields. After harvest, bulbs were taken to the postharvest laboratory and evaluated for total soluble solids, titratable acidity, and pungency (aliinase activity). For total soluble solids 'Superex' had the lowest sugar content (5.4°Brix) whereas the cultivar named 'Picante' showed the highest Brix (11.0°Brix) among the studied materials. For titratable acidity, it was verified that 'Serrana' had the lowest acid content (0.094 g piruvic acid.100 g-1 FW) whereas 'Branca' showed the highest content of organic acids. When pungency was evaluated it was verified that aliinase activity varied from 1.37 μg piruvic acid. 100 g-1 FW for 'Adocicada' to 12.18 μg piruvic acid.100 g-1 FW for 'Roxa', which was considered to have hot pungency (high alliinase activity and low TSS/TA), whereas 'Bulbo duplo' was evaluated as pungent (high alliinase activity and TSS/TA). The combination of the studied characteristics indicated that an onion with high pungency must have high aliinase activity and titratable acidity, whereas sweet onions shall have high soluble solids contents and low aliinase activity. Based on this information, 'Branca' bulbs were considered acids (weak pungency and high acidity), whereas 'Adocicada', 'Princesa', and 'Serrana' bulbs are sweet, due to low alliinase activity and titratable acidity. 'Superex', 'XP 6803', 'Granex 33' and 'Picante' had a moderately pungent flavor (alliinase activity intermediate and low TSS/TA), but 'XP 8418' and 'RP 6010' flavor was evaluated as lightly pungent (Sow alliinase activity TSS/TA). |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-01-01 2022-04-29T07:11:53Z 2022-04-29T07:11:53Z |
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://dx.doi.org/10.17660/ActaHortic.2005.688.36 Acta Horticulturae, v. 688, p. 265-268. 0567-7572 http://hdl.handle.net/11449/227188 10.17660/ActaHortic.2005.688.36 2-s2.0-84880032898 |
url |
http://dx.doi.org/10.17660/ActaHortic.2005.688.36 http://hdl.handle.net/11449/227188 |
identifier_str_mv |
Acta Horticulturae, v. 688, p. 265-268. 0567-7572 10.17660/ActaHortic.2005.688.36 2-s2.0-84880032898 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Acta Horticulturae |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
265-268 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128614707757056 |