| Registro completo |
| Provedor de dados: |
Horticultura Brasileira
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| País: |
Brazil
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| Título: |
1-Methylcyclopropene delays tomato fruit ripening
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| Autores: |
Moretti,Celso Luiz
Araújo,Alessandra L.
Marouelli,Waldir Aparecido
Silva,Washington Luiz C.
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| Data: |
2002-12-01
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| Ano: |
2002
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| Palavras-chave: |
Lycopersicon esculentum
Acidity
Color
Carotenoids
Ethylene
Firmness
Postharvest
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| Resumo: |
Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity, external color, and total carotenoids. Firmness of fruit treated with 1000 mL.L-1 was about 88% higher than control fruits after 17 days. The a*/b* ratio, an indicator of skin color, for fruit treated with 1000 mL.L-1 of 1-MCP was 38% lower than control fruits at the end of the storage period. Treatments with higher concentrations of 1-MCP delayed total carotenoids synthesis and color development. Control fruits stored for 17 days had about 190% more total carotenoids than fruits treated with 1000 mL.L-1 of 1-MCP. Postharvest application of 1-MCP was an efficient method to delay tomato fruit ripening. As 1-MCP concentration increased, ripening was further delayed. Tomatoes treated with 250, 500, and 1000 mL.L-1 of 1-MCP were delayed by 8 to 11, 11 to 13 and 15 to 17 days, respectively.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030
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| Editor: |
Associação Brasileira de Horticultura
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| Relação: |
10.1590/S0102-05362002000400030
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| Formato: |
text/html
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| Fonte: |
Horticultura Brasileira v.20 n.4 2002
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| Direitos: |
info:eu-repo/semantics/openAccess
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