ISHS Acta Horticulturae 553: IV International Conference on Postharvest Science
CHANGES IN THE LIPIDS OF THE TISSUES IN THE SUPERFICIAL SCALD FRUIT OF JONAGOLD APPLES |
| Authors: | E. Delian, J.M.C. Geuns, I. Burzo, L. Badulescu |
| Keywords: | apple cv. Jonagold, lipids, physiological disorder, superficial scald |
| Abstract:
Superficial scald is a physiological disorder, which affects the skin of certain varieties of apples during storage and is associated with the external layers of the skin. The main lipid classes in plants are phospholipids (40 to 45%), glycolipids (10 to 15%) and sterols (about 40%) (Larsson, et al., 1990). The most common fatty acids in plant lipids are palmitic (16:0), palmitoleic (16:1), stearic (18:0), oleic (18:1), linoleic (18:2), and linolenic (18:3). The major part of the sterols is represented by free sterols. As fatty acids and sterols are constituents of membranes and especially of the plasma membranes, it may be expected that the presence of these in plant plasma membranes could be correlated to some specific feature of the lipid composition and organization of the plant membranes (Shinitzky, 1984). The purpose of our present research has been to examine the lipid composition of sound and superficial scald affected skin of Jonagold apples. | |
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