Chiang Mai Journal of Science

Some fatty acids: palmitic acid, oleic acid, linoleic acid and linolenic acid, in plant seeds were determined. The plant seed samples were Sesamum indicum Linn., Perilla frutescens(Linn.) Britt, Hibiscus sabdariffa L., Corchorus olitorius L., Hibiscus canabinus, Tamarindus indica Linn., Irivingia ex. Malayana oliv. A. Benn. The samples were methylated to methylester by methanolic hydrochloric and extracted by toluene. The fatty acids were analyzed by gas chromatography with DB-wax column, injector and flame ionization detector were 250^oC and column temperature program. The omega-3 or a-linolenic acid was found the highest value in Perilla frutescens(Linn) Britt with the amount of 40.80 mg/g and found in Hibiscus sabdariffa L. and Corchorus olitorius L in the range of 1.82-1.90 mg/g. The Omega-6 or linoleic acid was found in all samples in the range of 0.20-16.00 mg/g. Palmitic acid and oleic acid were also found in all samples.