Cinnamon and Cassia barks are among the earliest know spices used by the human kind. Cinnamon is pale tan in color and mildly sweet in flavor. Cassia is a similar spice to cinnamon but of an inferior quality. They are of great commercial importance due to its aromatic and sweet taste with a spicy fragrance, they also contain a large number of essential oils. Moreover, they are also commonly used as spice in home kitchens and their distilled essential oils or synthetic analogues are used as flavoring agent in food and beverage industry. They are also found as a useful material in pharmaceutical industries.