corn germ oil solvent extraction meal machine in malaysia

                                               
                                               
                                               
                                               
                                               
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  • How to extract oil from corn germ during flour processing?
  • This work aimed the recovery of oil and protein fractions from corn germ (CG) generated as a by-product during flour processing. Several oil extraction techniques were investigated: hexane at room temperature, hexane at 45 °C, supercritical carbon dioxide (Sc-CO 2) and Soxhlet with hexane and ethanol.
  • How to extract corn germ oil in semi-batch process?
  • The extraction of corn germ oil was evaluated using pressurized propane as solvent in semi-batch process as an alternative approach to organic solvent extraction. The effect of temperature (20, 40, 60 °C), pressure (20, 60, 100 bar), particle size and confinement time were studied.
  • How is corn germ isolated from starch?
  • During the wet milling process, the germ is isolated from the starch using cyclone separators, washed, and dried. The dried germ contains about 50% oil, in which the oil constitutes about 85% of the total amount of oil present in the corn.
  • Can hexane extract be used to extract corn germ oil?
  • Extraction with subcritical propane resulted in corn germ oils with properties similar to those obtained in classic extraction procedures using hexane. However, both propane and hexane extracts had lower total phenolic content and antioxidant activity compared with Soxhlet extraction with ethanol or ethyl acetate.
  • What is the extraction yield of corn germ oil?
  • The highest extraction yield with propane was 38.4?±?1.2 wt% at 20 °C, 20 bar, 30 min and 0.95 mm particle size. Corn germ oil is widely used for culinary preparation because of its pleasant and slightly sweet taste.
  • Can oil and protein extracts be recovered from corn germ?
  • Oil and proteins were successfully recovered from corn germ by a biorefinery scheme. Oil extraction yield and TPC of oils were influenced by the polarity of solvents. The protein content of recovered extracts ranged from 20 to 48%. The functionality of protein extracts depended on the defatting pretreatment.