Supercritical and subcritical fluid technology utilization for the processing of flaxseed hull

• Author / Creator

  Martin do Prado, Ivor

• Flaxseed and Sacha inchi seed are among the highest omega-3 fatty acid sources in the world. Subcritical and super critical technologies are an alternative technology used for hydrolyzes, chemical reaction, extraction, separation, and other. In this thesis, new data on phase equilibria for Sacha inchi seed oil in CO2 have been measured at 303, 313 and 323 K and 4.3 to 27.7 MPa with CO2 mole fraction varying from 0.7488 to 0.9997. Flaxseed hull oil was extracted using supercritical CO2 at 10-30 MPa and 313-333 K. Cost of manufacture study was estimated in (US$ 10.50 kg-1) for flax seed hull oil. Then, a factorial design with three factors, temperatures (393, 423 and 453 K), pressures (1, 3 and 5 MPa) and flow rates (1, 2 and 3 mL min-1) was used to determine the best extraction conditions for recovery of phenolics and carbohydrates from deffated flaxseed hulls using subcritical water.

• Subjects / Keywords

  • Flaxseed hull
  • Supercritical CO2
  • Subcritical water

• Graduation date

  Spring 2014

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3GQ3K

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.