| Registro completo |
| Provedor de dados: |
Bragantia
|
| País: |
Brazil
|
| Título: |
Respiration rate and ethylene metabolism of ‘Jonagold’ apple and ‘Conference’ pear under regular air and controlled atmosphere
|
| Autores: |
Saquet,Adriano Arriel
Streif,Josef
|
| Data: |
2017-04-01
|
| Ano: |
2017
|
| Palavras-chave: |
Malus domestica Borkh.
Pyrus communis L.
Respiration
Respiratory quotient
|
| Resumo: |
ABSTRACT The 1-aminocyclopropane-1-carboxylate (ACC) oxidase activity, ethylene production, CO2 release and O2 uptake of ‘Jonagold’ apple and ‘Conference’ pear were investigated during regular air and controlled atmosphere storage. Storage conditions tested at 0 °C during 6 months, with a further 10 d shelf-life in air at 20 °C were: 0.5 kPa O2 + 6.0 kPa CO2; 3 kPa O2 + 6 kPa CO2; 1 kPa O2 + 3 kPa CO2; 1.5 kPa O2 + 1.5 kPa CO2; 0.5 kPa O2 + 0.5 kPa CO2 and 2 kPa O2 + 1 kPa CO2. Apple and pear kept in regular air showed higher ACC-oxidase activity, ethylene production and respiration rates. Under controlled atmosphere, lower O2 and/ or higher CO2 partial pressures strongly inhibited ACC-oxidase activity and ethylene production of apple and pear. Agreeing with ACC-oxidase activity and ethylene production, respiration rate was affected by the controlled atmosphere in a similar manner. The controlled atmosphere condition of 0.5 kPa O2 + 6.0 kPa CO2 showed the strongest suppression in ethylene production, respiration and generated higher values in the respiratory quotient. However, fruit metabolism was strongly suppressed in ‘Jonagold’ than in ‘Conference’, persisting a strong residual effect of controlled atmosphere during the full 10 d shelf-life in apple.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200335
|
| Editor: |
Instituto Agronômico de Campinas
|
| Relação: |
10.1590/1678-4499.189
|
| Formato: |
text/html
|
| Fonte: |
Bragantia v.76 n.2 2017
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
