Betula platyphylla var.japonica Seed Oil: A rich source of linoleic acid

Abstract Component fatty acids of the oil extracted from Betula platypbylla Sukatchev var. japonica Hara (Betulaceae) seeds were analyzed by gas liquid chromatography. The predominant fatty acid was linoleic acid (87%), and together with oleic and linolenic acids the 18‐carbon unsaturated acids amounted to 97% of the total acids.