“…Peony (Paeoniaceae, genus Paeonia) is a traditional plant in China, which not only possesses unique floral characteristics but also contain active ingredients, such as essential oils, flavonoids and phenolic compounds, all widely studied. Moreover, peony seeds contain high amounts of oils (about 35%), the GC‐MS analysis indicated that more than 85% of PSO comprises unsaturated fatty acids (UFAs), such as linolenic acid C18:3, linoleic acid C18:2 and oleic acid C18:1 (Li et al ., ), which is higher than other seed oils (such as peanut, camellia, palm, olive, corn, sunflower oils; <10%) (Velioglu et al ., ). Linolenic acid exhibits antioxidant function, reduces blood fat and cholesterol levels and prevents diseases of heart, head and blood vessels; however, linolenic acid cannot be synthesised by the body itself.…”