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United States Department of Agriculture

Agricultural Research Service

Title: A Pilot Study of Expelled and Solvent Extracted Milkweed Oil

item Holser, Ronald
item Fries, Russell - NATURAL FIBER CORP

Submitted to: Industrial Crops and Products International Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: October 21, 1999
Publication Date: N/A

Technical Abstract: Pilot-scale tests were performed with wild type milkweed seed (Asclepsia speciosa and A. syriaca) to identify processing conditions to generate refined, bleached, and deodorized oil in good yield with acceptable color and odor properties. Milkweed seed represents a potential alternative source of triglycerides for industrial application. Milkweed seed is harvested commercially for seed floss that is used as a hypoallergenic fiber fill material. The seed typically contains 25% triglycerides with 50% linoleic, 20% 18:1 (Delta9) and 14% 18:1 (Delta11). Press oil was generated by extruding raw seed with an Anderson Expander Cooker followed by expelling with an Anderson Lion 90-model expeller. Solvent extracted oil was generated by extrusion of the seed and then extraction with hexane in a Crown Model 2 Extractor. Residual oil measured 17.4% in the presscake and 9.5% in the solvent extracted meal. Press oil and solvent extracted oil were both refined using a modified caustic treatment.

Last Modified: 4/22/2015
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