1, the raw materials are different:

Pepper is made of dried pepper grinding, there are two kinds of white pepper and black pepper. Black pepper is processed from immature fruit, white pepper is picked and processed after the fruit is fully ripe.

Pepper powder is a spice made from peppercorns.

2, therapeutic effects are different:

White pepper has a greater medicinal value, can disperse cold, stomach, etc., can enhance appetite, digestion, promote sweating; can also improve the female leukorrhea abnormalities and epilepsy; black pepper is stronger than the spicy white pepper, swallowing spicy, fishy flavor, more used in the cooking of offal, seafood dishes.

Pepper has an aromatic odor, can remove the fishy smell of various meats, change the taste, can promote saliva secretion, increase appetite.

3, the composition is different:

Pepper is the world's major flavoring spices, the fruit contains volatile oil 1-2%, piperine 8-9%, but also contains crude fat, protein, starch, soluble nitrogen and other substances.

The main flavoring component of pepper is the volatile alkenes it contains, including limonene, allspice, laurinene, perillene and so on.

4, the use of different:

Pepper is mainly used in soup seasoning, common chicken soup cooked with the best, although pepper is mainly used as a condiment, but in fact there are many other uses, such as: folk "pepper stewed pork belly" treatment of chronic gastrointestinal diseases.

Pepper, whether braised, marinated, small dishes, Sichuan pickles, chicken, duck, fish, sheep and cattle dishes can be used to it, can also be coarsely ground into a powder and salt mix for pepper salt for dipping.

Baidu Encyclopedia - Pepper

Baidu Encyclopedia - Pepper

People's Daily Online - Pepper efficacy and role of learning to distinguish between black and white pepper