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Oil and waxes in the pericarp of citrus fruit

Within the plant family Zygophyllcaeae is a genus of plants, Citrus sp, which have fruits in the form of large succulent berries. The thick outer fleshy layer of the fruit is a pericarp. Cells of the pericarp contain a high proportion of waxes and oils which are lost during conventional processing for SEM. Frozen hydrated specimens, however, retain these lipidic materials.

Bar = 25um, inset 10um