Which processing method is reserved for citrus peels (lemon, lime, orange)?

Which processing method is reserved for citrus peels (lemon, lime, orange)?

• A. cold pressing
• B. distillation
• C. solvent extraction
• D. fermentation

Answer: (A)

Extracting citrus peel essential oils is best done by cold pressing because the oils reside in the zest’s surface glands and are released by mechanical rupture without applying heat. This preserves the bright, crisp aroma and the delicate balance of volatile compounds that define lemon, lime, and orange oils. If heat were used, as in steam distillation, some aroma compounds would degrade or change, altering the scent and quality of the oil. Solvent extraction can produce oils but introduces solvent residues and can alter the oil’s character, while fermentation isn’t a method used to obtain citrus peel oils. Therefore, pressing is the method that specifically suits citrus peels to capture their true essence.

Extracting citrus peel essential oils is best done by cold pressing because the oils reside in the zest’s surface glands and are released by mechanical rupture without applying heat. This preserves the bright, crisp aroma and the delicate balance of volatile compounds that define lemon, lime, and orange oils. If heat were used, as in steam distillation, some aroma compounds would degrade or change, altering the scent and quality of the oil. Solvent extraction can produce oils but introduces solvent residues and can alter the oil’s character, while fermentation isn’t a method used to obtain citrus peel oils. Therefore, pressing is the method that specifically suits citrus peels to capture their true essence.