Eggplant is one of the few purple vegetables, and it is also a very common home vegetable on the table. Its purple skin is rich in vitamin E and vitamin P, which is unmatched by other vegetables. Eggplant belongs to the Solanaceae family, an annual vegetable. Native to India. Eggplant has been cultivated in China for more than 1,000 years. It is widely cultivated in my country and is one of the main vegetables in summer.