US EPA

1149927 

Journal Article 

Oil recoveries from sea buckthorn seeds and pulp 

Yakimishen, R; Cenkowski, S; Muir, WE 

2005 

Yes 

Applied Engineering in Agriculture
ISSN: 0883-8542 

21 

6 

1047-1055 

WOS:000234012100016 

Seed and pulp oils found in sea buckthorn berries are recognized in Canada as having economic potential in the functional food and nutraceutical markets. A need exists for the determination of feasible oil extraction technologies for these high-value berry oils. Three extraction techniques, namely supercritical (carbon monoxide) (SCFE), screw pressing, and an aqueous extraction technique were evaluated for their extraction efficiency (oil recovery % w/w) in comparison to solvent extraction (petroleum ether). Sea buckthorn (cultivar Indian-Summer) seed and pulp flakes were prepared prior to oil extraction via a pilot process comprising steps of juice removal, drying, and sieving. Base level oil contents of seeds (11.0%), pulp flakes (19.7%), and juice (2.0%) were determined by chloroform/methanol extraction. Seed oil recoveries were 65.1% and 41.2% for SCFE CO2 (45 degrees C and 35 MPa) and screw pressing, respectively. Pulp flake oil recovery was 86.3% for SCFE CO2 (45 degrees C and 35 MPa). Low recoveries of pulp oil (6%) were obtained by aqueous extraction compared to chloroform/methanol extraction. Supercritical fluid extraction employing carbon dioxide was selected as a feasible method for extracting sufficient quantities of oils from both seeds and pulp of sea buckthorn berries. 

sea buckthorn; oil; extraction; solvent; supercritical; screw press; aqueous