Evening primrose (Oenothera biennis L) is commonly known as mountain sesame, because its flowers bloom mostly at night, and the fragrance is elegant, also known as nightshade.
Evening primrose seeds contain 20%~30% evening primrose oil, evening primrose is mainly produced in northeast and northwest China, Heilongjiang, Inner Mongolia, Shanxi, Shaanxi, Jilin and other places are planted, due to the different raw material varieties, origin and harvest time, product quality has certain differences. Evening primrose seeds generally contain 15%~26% oil, and the content of γ-linolenic acid in the oil is 9%~13%.
2024-08-10