Effects of film packaging and cold storage on postharvest quality of ‘Tommy Atkins’ mangoes.
Vidigal di Castro J., Pfaffenbach L.B., Carvalho C.R.L., Rossetto C.J.
5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004. page 16
2004
บทคัดย่อ
Effects of film packaging and cold storage on postharvest quality of ‘Tommy Atkins’ mangoes.
Brazil is one of the ten mango world producers and the second exporter country of this tropical fruit.Mango fresh fruits are perishable and their shelf life cannot surpass one week at room temperature.After harvest the main problems are fruit over ripening and disease development.Refrigeration and modified atmosphere can improve fruit shelf life with additional benefits besides the ones of cold storage but for mangoes there are controversial points on improved quality.The effects of modified atmosphere for plastic film associated with cold storage on ‘Tommy Atkins’ mango fruits were studied.Mangoes were packed in low density polyethylene bags (LDPE) with and without potassium permanganate absorber, and PVC bags and stored at 12 °C and 90% RH.Every week, the bags were removed and mangoes were transferred to 25 °C conditions to simulate marketing.Quality parameters (TSS, acidity, firmness, flesh and peel colour) and losses (weight and rots) were evaluated immediately after cold storage and when the mangoes ripened at room temperature, after cold storage.The polyethylene film reduced fruit weight loss during cold storage.For mangoes packed in LDPE with absorber, decay incidence was completely controlled for up to 21 days of refrigerated storage and the fruits remained firmer.At room temperature there were no residual effects of packaging on peel colour development and on disease incidence.For all packages studied, when the mangoes ripened, They reached the ideal consumer quality conditions.