Furthermore lipase activity and oil extraction were studied in
the untreated rice bran. Soxhlet apparatus was used for oil extraction
from untreated sample. Stored milled rice bran (10.0 g), at
25 C, was placed into soxhlet thimble, and extraction of RBO
was conducted by hexane as an organic extraction solvent for
nearly 240 min. The obtained mixture was concentrated by hexane
evaporation to evaluate the quality of oil, and extraction yield.