Physical properties and storage stability of apples affected with watercore disorder
1994
Hung, Y.C. | Hao, Y.Y. | Tollner, E.W. | Upchurch, B.L.
Apples with severe watercore disorder were more dense than apples with mild or no watercore disorder. Moisture content of affected tissue from apples with severe watercore disorder was significantly higher than tissue from apples with a mild disorder. Apples with watercore disorder were stored at either a refrigerated (1 degree C) or a controlled atmosphere (CA) condition (2% O2 and 2% CO2) for selected periods. A machine vision system for quantifying light transmission was used for detecting watercore disorder. Apples stored under the refrigerated condition lost more mass (4.4%) than apples stored under the CA condition (1.8%). Apples stored under the refrigerated condition had less severe watercore disorder after storage (severity score = 1.69) than apples stored under the CA condition (severity score = 2.42). There was no difference in light transmission score between apples stored at either refrigerated or CA condition for the first two weeks. Subsequently, light transmission scores for apples stored under the refrigerated condition decreased faster than apples stored under the CA condition.
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