The aroma of Uziza seeds is milder than the black pepper. This is expected as the piperine content of Uziza seeds is lower than that of black pepper. Piperine is responsible for that spicy flavor that the black pepper has.
Uziza seeds on the other hand contain higher levels of volatile oils particularly the linalool, which is responsible for the pleasant floral aroma. This Aroma is absent in the regular black pepper. Instead, the black pepper has a spicy and woody aroma.
The aroma of the seeds sets them apart, also, the chemical composition of the regular black pepper and Uziza are different, while containing similar components, they vary in terms of the amount of each of the components (which invariably sets them apart in taste and possibly in their activity in the body).
