namibia oil solvent extraction of rice bran cake

                                               
                                               
                                               
                                               
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  • How is rice bran oil extracted?
  • Rice bran oil (RBO) is obtained through extraction of rice bran which is a by-product of the rice milling industries. There are several techniques used for the extraction of the RBO, but solvent extraction using hexane is the most popular used conventional method for commercial extraction.‌
  • How to improve the extraction ratio of rice bran oil?
  • Author to whom correspondence should be addressed. In order to improve the extraction ratio of rice bran oil, a single-factor experiment and response surface methodology with a central composite design were used to determine a new mixed solvent and the optimal extraction conditions of the mixed solvent.‌
  • Which solvent is used for rice bran oil extraction?
  • The extraction yield was higher when using ethyl acetate as the solvent. Rice bran (RB) oil extraction was performed by applying renewable solvents like ethanol and ethyl acetate. To assess the interaction of these solvents with the oil, the UNIFAC model was chosen to determine the infinite dilution activity coefficient.‌
  • Can n-hexane be used to extract oil from rice bran?
  • The existing solvent extraction method employs n-hexane as the most viable solvent for the extraction of oil from rice bran. But the high cost and scarce availability of n-hexane resulted in uneconomical extraction of rice bran oil.‌
  • What ohmic heating solvent is used for rice bran extraction?
  • Those are, molarity of ohmic heating solvent (levels- 1 M, 0.1 M and 0.01 M) , ohmic heating current (levels- 5 A, 10 A and 20 A) and time of ohmic heating (levels- 1 min, 2 min and 3 min). Twenty-five grams of rice bran was taken and oil extraction was conducted in the soxhlet apparatus. The volume of n-Hexane used for the extraction was 200 ml.‌
  • Does ohmically heated rice bran extract oil?
  • The ohmically heated rice bran was subjected to extraction studies. Ohmic heating of rice bran of paddy varieties Red Triveni and Basmati reduced the extraction time by nearly 75 % and 70 % respectively and gave a maximum quantity of oil extracted when compared to bran, which was not ohmically heated.