Orange trees are widely grown in tropical and subtropical climates with oranges now the most cultivated fruit in the world. The fruit of the orange tree is processed for its fragrant peel. Orange oil is mainly composed of d-limonene, a compound that gives all citrus fruits their recognisable fresh and sweet aroma. Orange oil makes it one of the most commonly used aromatic ingredients in perfume industry. Oranges remind us of the tropics and exotic sunny and balmy locations.
