ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

The influence of applied waxes on postharvest physiological behavior and pitting of grapefruit

Gandolfi L., Stella M.P., Zambenedetti P., Zatta P., Petracek P.D., Dou H. and Pao S.

Postharvest Biology and Technology, Volume 14, Number 1, September 1998 , pp. 99-106.

1998

บทคัดย่อ

The role of wax application on the development of a postharvest pitting of white grapefruit (Citrus paradisi `Macf.') was examined. Pitting developed on fruit coated with shellac-based waxes from three sources and, to a much lesser extent, on fruit coated with carnauba- or polyethylene-based wax. Non-waxed fruit did not pit. Pitting decreased with internal O₂ level and increased with internal CO₂ level. Pitting increased with decreasing internal O₂ level and decreased with increasing CO₂ level. Subjecting fruit to low O₂ (4%) alone induced pitting, but high CO₂ (8%) had no effect. These results suggest that stimulation of postharvest pitting of grapefruit is caused in part by the reduction of internal O₂ levels.