Objective:Use three different methods:squeeze

SFE-CO2 and chemical method extract olein from bunge pricklyash seed

to compare and choose the best technology

evaluation the possible way and more ideal method for industrialization.Methods:Extract olein from bunge pricklyash seed by traditional squeeze method

SFE-CO2 method and chemical method(DAB-6

methanol

aether

acetone etc

observation the indicatrix as the yield of oil

the content of α-Linolenic Acid etc.Results:①Traditional squeeze method is convenient

suitable for industrialization

and the product of the squeeze menthod consistent with enterprise's standard Q/HZCY001-1999.②The yield of oil reachs 25%

saturated fatty acid is about 10%

unsaturated fatty acid is near 80%(the content of α-Linolenic Acid and α-Linolenic Acid is about 30%)

the other ingredient is about 10%

not contain erucidic acid.③Through comparative study

the suitable way of the industrialization of extract the olein from bunge pricklyash seed in rank is squeeze method>SFE-CO2 method>chemical method.Conclusion:①Bunge pricklyash seed can be new resource of aetio-olein

and the technology of squeeze is the suitable method of industrialization.②The unsaturated fatty acid as the α-Linolenic Acid etc

the content can reachs 80% in the olein.It have important and practice significance for exploitation edible health protection vegetable oil

especial for develop the constitutional or curative new drugs and the exquisite and depurate the α-Linolenic Acid

linoleic acid etc

which are the essential nutrient of human.