บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Susceptibility of Spanish melon fruits to chilling injury during cold storage.

Valdenegro M., Ramirez M., Martinez-Madrid M.C., Flores F.B., Romojaro F.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.56

2004

บทคัดย่อ

Susceptibility of Spanish melon fruits to chilling injury during cold storage. The objective of this work was to analyze the chilling injury development in Spanish melon fruits type Piel de Sapo under different cold storage conditions and treatments: 1-methylcyclopropent, Gustec, and ethylene.The 1-MCP is a new alternative for extending the storage period by blocking the ethylene receptors; it is effective when the treated fruit is stored at 0-3 °C.Gustec is a wax that protects the fruit from the loss of water and chilling injury and handling.

Ethylene is a hormone that in some cases protects against chilling injury.Melon fruits were treated with 1-MCP at different doses: 0 and 750 ppb.Regarding Gustec, thetreatment was carried out by deeping at a dose of 3.2%; and ethylene was applied at a dose of 100 ppm.Melon fruits were stored at 2 and 8 °C for 34 days.Sampling schedule was weekly for cold storage and then transferred to 20 °C.Evolution of chilling injury symptoms, electrolyte leakage, ethylene production, CO2 production, ethanol and acetaldehyde, firmness and sensorial analysis were determined.Exposition at 2 °C resulted in a severe injury of fruits independently of the treatment applied and then, after 20-25 days, the fruits cannot be commercialized.

On the other side, exposition at 8 °C did not cause any damage and the fruits kept their organoleptic quality during the whole period of cold storage.At 8 °C, the fruits with the best evaluations were those treated with 1-methylcyclopropene (1-MCP).