Abstract
Physiological diseases such as a kind ofchilling injury, that is, internal breakdown, occur in the pulp of Starking Delicious apples during cold storage and atmosphere storage. Onthe other hand, chilling injury seldom occurs during cold storage and controlled atmosphere storage in the pulp of Rails Janet apples.
To study the mechanism of this chilling injury, the phase change temperature was determined in the neutral, glycolipid, and phospholipid fractions of both cultivars by differential scanning calorimetry.
The phase change temperature was observed at about 20°C in both cultivars just after harvest, and large differences did not exist. But after six months in cold storage, the phase change temperature was lower in both cultivars, and the phase change temperature in Rails Janet was lower than that in Starking Delicious.
