บทคัดย่องานวิจัย

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Chilling-injury sensitiveness of cv. Rojo brilliante persimmon.

Salvador A., Arnal L., Monterde A., Cuquerella J.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.51

2004

บทคัดย่อ

Chilling-injury sensitiveness of cv. Rojo brilliante persimmon.  The effect of cold storage o­n quality parameters of ‘Rojo Brillante’ persimmon was studied in two consecutive years.Persimmon fruits were stored at 1 or 15 °C for 15, 30 or 50 days, after cold storage periods fruit were submitted to deastringency treatment (95% CO2, 20 °C, 24 h) and then held to 20 °C for 7 days simulating shelf-life.Ethylene and CO2 production, firmness, external color, weight loss, soluble solids and juice volatile concentration were evaluated.

This cultivar presented evident chilling injury symptoms when stored at 1 °C during 15 days.The most important disorder was the drastic flesh softening that occurred when fruit were transferred from cold storage to shelf-life conditions.Acetaldehyde production and calyx abscission also appeared as possible responses to chilling stress.Values of C2H4 and CO2 production were very low and no significant changes were observed along storage.Storage temperature did not affect soluble solids content.Although at 15 °C, persimmons maintained high quality during 15 days plus shelf-life, after 30 days the values of firmness were very low, therefore extended storage it is not possible at this temperature.