Abstract

BRUSCATTO, Mariângela H.; PESTANA-BAUER, Vanessa R.; RUTZ, Josiane K.  and  ZAMBIAZI, Rui C.. Refined Rice Bran Oil Characterization. Rev. cienc. tecnol. [online]. 2012, n.18, pp.28-32. ISSN 1851-7587.

The aim of this study was to characterize chemically and physically refined rice bran oil. The samples of the rice (Oryza sativa) bran oil were provided by Irgovel industry (Pelotas/RS/Brasil) and Helmut Tessmann industry (Camaquã/RS/Brasil). The acidity content of the chemically and physically refined rice bran oil was 0.3% (oleic acid). The peroxide value for chemically and physically refined rice bran oil was 2.07 meq g. Kg^-1 and 1.72 meq g.Kg^-1, respectively. The chemically refined oil showed a content of 43.52 mg. 100 g^-1 of tocopherols, and the physically refined rice bran oil was 35.60 mg.100 g^-1. The ? - oryzanol content was 33.55 mg.100 g^-1 and 732.60 mg.100 g^-1 for the chemically and physically refined rice oils, respectively. Therefore, the neutralization step affects the content of ? -oryzanol.

Keywords : Rice bran oil; Chemically refined; Physically refined; Characterization; Tocopherols; Y-oryzanol.

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