Abstract
Abstract—This research has studied the extraction and analyzation of gamma- oryzanol and total lipid in new rice bran glutinous varieties which were analyzed by the developed technique. The adsorption coefficient (K) of a solute between a solid phase and a solvent phase were studied in the solid-liquid extraction which is defined by the solid-liquid equilibrium condition used to determine the oil extracted in short time so the operation of extraction time been considered. The percentage of oil extracted (% dry weight) is highly increase when time of extraction at 10 minute (30C) and then it shown slowly increasing rate. From the K values, it was estimate that about 16.52-41.98 mg/g dry basis of the lipid and 1.15-2.96 mg/g dry basis of the gamma oryzanol were extract by heaxane. Sanphatong 1 had highest total lipid and gamma oryzanol while the lowest content was found in Maejo 2.
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