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| Registros recuperados : 35 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
03/11/1999 |
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Data da última atualização: |
05/07/2019 |
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Autoria: |
FINGER, F. L.; ENDRES, L.; MOSQUIM, P. R.; PUIATTI, M. |
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Afiliação: |
FERNANDO LUIZ FINGER, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia; LAURÍCIO ENDRES, Universidade de São Paulo - USP/Departamento de Botânica; PAULO ROBERTO MOSQUIM, Universidade Federal de Viçosa - UFV/Departamento de Biologia Vegetal; MÁRIO PUIATTI, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia. |
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Título: |
Physiological changes during postharvest senescence of broccoli. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 9, p. 1565-69, set. 1999 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Alterações fisiológicas da senescência pós-colheita de brócolis |
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Conteúdo: |
The objective of this work was to determine the early physiological changes throughout shelf life fresh broccoli (Brassica oleracea L. var. italica) cv. Piracicaba Precoce at 25 graus C. and relative humidity of 96% in the dark until complete senescence. Head inflorescences showed lack of turgidity and commercial value when weight loss reached up to 5%, coinciding with 48 hour after harvest. Chlorophyll content was stable until 24 hours after harvesting; afterwards, an intense degradation phase took place. At 72 hours, total head yellowing was observed when chlorophyll content dropped to 30% of its initial content. Peroxidase activity increased by 1.4 fold during the first six hours, dropping to its lowest level approximately 24 hours after harvesting. However, from this time on, an increment of activity was observed until 72 hours. At 24 hours after harvesting, respiration was reduced by 50%. At later stages of senescence, respiration of florets was stable, but in a lower level than that determined at harvest.Sharp reduction of starch and reducing sugars was observed within 24 hours after harvesting, followed by continuous period of decline in starch and non-reducing sugars. |
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Palavras-Chave: |
Acucar soluvel; Acucares soluveis; Brassica oleracea italica; Postharvest; Respiration; Senescence; Soluble sugars. |
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Thesagro: |
Amido; Brócolo; Clorofila; Fisiologia; Peroxidase; Pós-Colheita; Respiração; Senescência. |
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Thesaurus NAL: |
broccoli; chlorophyll; physiology; starch. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/16482/1/v34n9a06.pdf
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Marc: |
LEADER 02300naa a2200397 a 4500
001 1100939
005 2019-07-05
008 1999 bl uuuu u00u1 u #d
100 1 $aFINGER, F. L.
245 $aPhysiological changes during postharvest senescence of broccoli.
260 $c1999
500 $aTítulo em português: Alterações fisiológicas da senescência pós-colheita de brócolis
520 $aThe objective of this work was to determine the early physiological changes throughout shelf life fresh broccoli (Brassica oleracea L. var. italica) cv. Piracicaba Precoce at 25 graus C. and relative humidity of 96% in the dark until complete senescence. Head inflorescences showed lack of turgidity and commercial value when weight loss reached up to 5%, coinciding with 48 hour after harvest. Chlorophyll content was stable until 24 hours after harvesting; afterwards, an intense degradation phase took place. At 72 hours, total head yellowing was observed when chlorophyll content dropped to 30% of its initial content. Peroxidase activity increased by 1.4 fold during the first six hours, dropping to its lowest level approximately 24 hours after harvesting. However, from this time on, an increment of activity was observed until 72 hours. At 24 hours after harvesting, respiration was reduced by 50%. At later stages of senescence, respiration of florets was stable, but in a lower level than that determined at harvest.Sharp reduction of starch and reducing sugars was observed within 24 hours after harvesting, followed by continuous period of decline in starch and non-reducing sugars.
650 $abroccoli
650 $achlorophyll
650 $aphysiology
650 $astarch
650 $aAmido
650 $aBrócolo
650 $aClorofila
650 $aFisiologia
650 $aPeroxidase
650 $aPós-Colheita
650 $aRespiração
650 $aSenescência
653 $aAcucar soluvel
653 $aAcucares soluveis
653 $aBrassica oleracea italica
653 $aPostharvest
653 $aRespiration
653 $aSenescence
653 $aSoluble sugars
700 1 $aENDRES, L.
700 1 $aMOSQUIM, P. R.
700 1 $aPUIATTI, M.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 34, n. 9, p. 1565-69, set. 1999
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Embrapa Unidades Centrais (AI-SEDE) |
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