What are the commercial by-products of lemon?

1. Lemon juice: This is the most common by-product of lemons and is used in a wide variety of beverages, desserts, and sauces. It is also a rich source of vitamin C and citric acid.

2. Lemon zest: This is the finely grated outer skin of the lemon and is used as a flavoring agent in many dishes. It is also a good source of vitamin C and essential oils.

3. Lemon oil: This is a volatile oil that is extracted from the peel of lemons and is used as a flavoring agent in many foods and beverages. It is also used in aromatherapy and as a natural cleaner.

4. Lemon pulp: This is the fleshy part of the lemon and is used in making marmalade, jams, and other preserves. It is also a good source of fiber and vitamin C.

5. Lemon seeds: These are small, brown seeds that are found in the center of lemons. They are used in making limoncello, a traditional Italian liqueur, and can also be used as a thickening agent in sauces and jams.

6. Lemon peel: This is the outer skin of the lemon and is used in making candied lemon peel, lemon marmalade, and other preserves. It is also a good source of fiber and vitamin C.

7. Lemon essential oil: This is a highly concentrated oil that is extracted from the peel of lemons and is used in aromatherapy, cosmetics, and as a natural cleaner.