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7736195 
Journal Article 
Fatty acid composition and oxidation stability of hemp (Cannabis sativa L.) seed oil extracted by supercritical carbon dioxide 
Da Porto, C; Decorti, D; Tubaro, F 
2012 
Yes 
Industrial Crops and Products
ISSN: 0926-6690 
36 
1 
401-404 
English 
WOS:000300921100059 
Supercritical carbon dioxide (SC-CO 2) was employed to extract oil from hemp (Cannabis sativa L.) seeds. For ground seeds, the supercritical extraction was carried out at temperatures of 40, 60 and 80°C and pressures of 300 and 400bar. Different solvent-ratios were applied. Supercritical CO 2 extractions were compared with a conventional technique, n-hexane in Soxhlet. The extraction yields, fatty acid composition of the oil and oxidation stability were determined. The seed samples used in this work contained 81% PUFAs, of which 59.6% was linoleic acid (ω-6), 3.4% γ-linolenic (ω-3), and 18% α-linolenic (ω-6). The highest oil yield from seeds was 22%, corresponding to 72% recovery, at 300bar and 40°C and at 400bar and 80°C. The highest oxidation stability corresponding to 2.16mM Eq Vit E was obtained at 300bar and 80°C. © 2011 Elsevier B.V. 
Supercritical CO2; Cannabis sativa L.; Hempseed oil; FAME analysis; PUFA's; Oxidation stability