Abstract: The extraction of rice bran oil was studied.The result indicated that the best conditions to extract rice bran oil were:the water content of rice bran 7%,crushed fineness 50 meshes,solvent isopropyl alcohol,extraction temperature 60 ℃,pH 6.0,ratio of stuff to solvent 1∶5,extraction time 2 h.The best refining conditions were:early neutralization temperature 45 ℃,the concentration of KOH 18.5%,excess alkali quantity 0.4%;two times bleaching technology,the first time in the conditions of dosage of bleaching earth 4%,time 30 min and temperature 90 ℃,the second time 3% bleaching earth,temperature 85℃,the vacuum 0.1 MPa,time 15 min;deodorization vacuum 0.08 MPa,deodorization temperature 180℃,deodorization time 1.5 h.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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