บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Storage of soursop (Annona muricata, L.) in polyethylene bags with ethylene absorbent.

Guerra, N. B., Livera, A. V. S., Rocha, J. A. M. R. da and Oliveira, S. L. de

Harvest and postharvest technologies for fresh fruits and vegetables. Year: 1995 Pages: 617-622 Ref: 17 ref.

1995

บทคัดย่อ

Lychee (Litchi chinensis Sonn.) pericarp desiccation and the importance of postharvest micro-cracking.

ABSTRACT :

 

Litchi fruits are prone to postharvest desiccation, resulting in browning of the pericarp. Microscopic cracks (20-100 micro m wide) in the pericarp surface were observed at harvest and were significantly increasing in density 12 h later. Microcracking extended through the sub-epidermal sclerenchyma layer into the mesocarp. Pericarp desiccation occurred prior to crack development, with cracking the result of dehydration rather that the initial cause. No evidence of cuticle thinning was observed prior to micro-cracking; however, localized cuticle deterioration on the protuberance did occur. It is suggested that initial pericarp desiccation may be the result of high cuticle permeability to water vapour, cuticle damage and the presence of lenticels. Although the cracking did not increase the rate of desiccation, micro-cracks may be important in both exposing the underlying anthocyanin-containing mesocarp tissue to further desiccation, and fungal penetration into the pericarp.