Paper Information

Journal:   JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)   March 2003 , Volume 36 , Number 4 (78); Page(s) 549 To 554.


Author(s):  TALAGHAT M.R., OWJI J.

The high annual rate of production of rice bran in our country usually results in accumulation of a large quantity of bran. This fact promoted us to evaluate different sample of rice bran for oil constituents. This research work was the extraction of oil from different varieties of bran collected from the North and the Southern parts of Iran. The total oil content, the quantity and their suitability for use as edible oil and/or in soap manufacturing were compared. Based on their resolution power and solvents availability, n-hexane was eventually selected as the suitable extraction solvent. The extracted oil was desolventized in the vacuum rotary evaporator. Analysis of this oily fraction showed the presence of oleic acid as the major constituents. All the extracted oil samples were analyzed for a number of parameters like PH, Iodine number, Specification number etc followed by decolonization using activated carbon and/ or acid activated clay toward final purification. Based on our results and findings, the oil samples obtained were edible but the total oil content of the Northern samples were higher than the those collected from the South of Iran. The oil content of these samples was ranged from 1.2 to 5.3 percent. Therefore, rice bran can be considered as an alternative source of edible oil which may be used in preparation of foodstuffs and dietary supplements.

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