Caption: Lemon zest cells (Citrus limoni). The outer lemon rind (lemon peel) contains 'zest' cells that are specialized epidermal cells known as trichomes. Shown here is a cross section through a lemon peel revealing the zest cells as the round, concave structures (highlighted in a different color). These trichomes are glandular trichomes that secret an oil that gives the lemon peel its tangy flavor. The essence / oil obtained from the peel is used extensively in the perfume industry. Lemons are a rich source of Vitamin C and the fruit juice is used for culinary and nonculinary purposes throughout the world. Lemons are used as commercial source of citric acid and ascorbic acid. Lemons are also used in producing sanitary kitchen deodorizers, insecticides, antibacterial products, wood treatment products and in aromatherapy.
Magnification*: x11
Type: SEM
Copyright 2010 Dennis Kunkel Microscopy, Inc.
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