ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effects of heat disinfestation treatment and modified atmosphere packaging on the storage life of Washington naval and Valencia oranges.

Shahbake, M. A.;

Iranian Journal of Agricultural Sciences Year: 1999 Vol: 30 Issue: 1 Pages: 93-102 Ref: 17 ref.

1999

บทคัดย่อ

The effects of combined treatments of shrink wrapping, curing, quarantine heat disinfestation treatment and modified atmosphere packaging (MAP) on the storage life of Washington navel and Valencia oranges were investigated. Washington navel oranges alone showed severe heat injury in response to MAP treatments. Shrink wrapping and curing significantly reduced Penicillium sp. in all treatments. MAP significantly increased stem end rot (Phomopsis citri) [Diaporthe citri] in Washington navel oranges, but had no effect on Valencia oranges. Quarantine heat disinfestation treatment had no significant effect on disease control or fruit quality. Ethanol concentrations in both cultivars with MAP were significantly higher than in other treatments, but the addition of an ethylene absorbent significantly decreased percentage ethanol under MAP in Washington navel oranges. In general, the combined treatments of shrink wrapping, curing, quarantine heat disinfestation treatment and MAP adversely affected flavour

, peel colour and increased ethanol concentrations in both cultivars. In the absence of MAP, however, there were no adverse effects on fruit quality, flavour and overall acceptability in both cultivars after 4 and 8 weeks storage. A negative correlation between ethanol concentrations and flavour and overall acceptability scores was observed in both cultivars, but this correlation was significant only between ethanol concentrations and overall acceptability in Valencia oranges.