บทคัดย่องานวิจัย

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Storage life and water loss of plain and curled leaf parsley.

Almeida D.P.F., Valente C.S.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.55

2004

บทคัดย่อ

Storage life and water loss of plain and curled leaf parsley.     Parsley (Petroselinum crispum) wilts very rapidly after harvest.Rapid cooling to near 0 °C and packaging in plastic films are the best techniques to reduce water loss.The placement of the petioles in water is an effective means of preventing water loss, often used in local markets, but has limitations for transport and storage.

We examined the storage life and water loss of two horticultural types of parsley – plain and curled leaf – at 22, 10, and 1 °C, with and without a folded polyethylene bag.Without plastic wrapping the leaves lasted for 2-4, 4, and 12 days at 22, 10, and 1 °C, respectively.Water loss from plant leaf parsley occurred at an average rate of 12.1, 4.3, and 1.0% day-1 at 22, 10, and 1 °C, respectively.Packaging in plastic film reduced the rate of water loss 5-8 fold in relation to the unpacked leaves.

When the leaves were dry-stored in the dark at 20 °C for 0, 6, 12, and 24 h before placing the petioles in water, the rate of water loss was 11.8% day–1 for plain leaf and 18.8% day–1 for curled leaf parsley.The dehydration periods depressed the subsequent rate of water uptake.However, in both cultivars, the leaves were able to recover full hydration when the petioles were placed in water after losing 11 to 18% of the initial fresh weight.