The main coloring matter of pepper is capsanthin. Capsaicin is a carotenoid pigment existing in pepper, accounting for 0.2% ~ 0.5% of pepper skin. Because of the different varieties of peppers in Korea, there will be more capsanthin.

Capsicum belongs to Solanaceae, Capsicum. It is an annual or limited perennial herb. Fruit is usually conical or rectangular, green when immature, bright red, green or purple when mature, with red being the most common. The causal skin of pepper contains capsaicin, which is spicy and can stimulate appetite. The content of vitamin C in pepper ranks first among vegetables, which originated in Mexico and was introduced to China in the late Ming Dynasty. There are also ornamental peppers, round and inedible, with red and purple colors.