• How is dry copra extracted?
  • More commonly, the dry copra is first extracted by the solvent-free method using expellers to obtain better quality coconut oil. Then the residue is processed through solvent extraction plant using food-grade hexane as a solvent to extract the residual coconut oil (8 to 12%). Dry copra may be extracted directly in solvent extraction plants.
  • What is the difference between solvent extraction and copra meal?
  • The coconut oil obtained by solvent extraction is generally refined to remove free fatty acids, bleached to reduce colour and even deodorized, depending on the intended end-uses. The solvent extracted copra meal can still contain residual 2 to 4% coconut oil.
  • Do different extraction techniques affect copra residue oil extraction?
  • In this study, the effect of three different extraction techniques on the copra residue oil (CRO) extraction were investigated. The aim is to evaluate the suitability of MAE as compared to other extraction techniques; SXE and ultrasonic-assisted extraction (UAE).
  • Which reagent is used in the extraction of copra oil?
  • Hexane (Friendemann Schmidt, analytical reagent grade) was used as solvent, 10 g of copra powder and 60 ¡ãC (¡À?5) of temperature was applied in all extraction procedures. After extractions were done, the copra oil was separated from the sample (by filtering) and solvent (using rotary evaporator).
  • What is copra used for?
  • Copra, after extraction of oil, leaves a residue which is palatable oil cake (or copra meal or mash). It is used in animal feeds, mainly for ruminants. It is used as fodder for horses, cattle, sheep and deer. Its high protein content (and oil content) is fattening for stock.
  • Does increasing the time for copra oil extraction result in high oil yield?
  • While, for MAE, the copra oil yield only increases until 15 min of extraction (62.97%) and after that the oil yield showed decreasing trend. Thus, by increasing the time for oil extraction through all of the techniques, it is could not resulted on high oil yield.