Composition Rice bran oil has a composition similar to that of peanut oil, with 38% monounsaturated, 37% polyunsaturated, and 25% saturated fatty acids. The fatty acid composition is:
A component of rice bran oil is the antioxidant γ-oryzanol, at around 2% of crude oil content. Thought to be a single compound when initially isolated, it is now known to be a mixture of steryl and other triterpenyl esters of ferulic acids. Also significant is the relatively high fractions of tocopherols and tocotrienols, together as vitamin E. Rice bran oil is also rich in other phytosterols.Literature review shows rice bran oil and its active constituents improve blood cholesterol by reducing total plasma cholesterol and triglycerides, and increasing the proportion of HDL cholesterol. Results of an animal study indicated a 42�crease in total cholesterol with a 62% drop in LDL cholesterol, when researchers supplemented test subjects’ diets with fractionated vitamin E obtained from rice bran oil.
One small-scale study of γ-oryzanol, a mixture of chemicals found in rice bran oil, found that 90% of the women had some form of relief from hot flashes after taking a supplement of the purified concentrate for four to six weeks.
The oryzanol content of the pan heated rice bran oil samples remains approximately the same even when heated at 180˚C for 8 hours, while a decrease in oryzanol content was reported in the case of microwave heating at the same conditions.
Squalene is a compound present in Rice Bran Oil which is easily absorbed by the skin and keeps it soft, supple and smooth.
It is rich in Vitamin E which is powerful antioxidant and has antimutagenic properties which prevent from cancer. Vitamin E also helps in boosting your immunity.
Omega fatty acids and inflammation
Rice bran oil has more than 2% omega 3 fatty acids in it (more than olive oil) and a good amount of omega 6 too. Rice bran oil has been tested to reduce cholesterol levels.
Rice Bran oil is anti-inflammatory too and some studies have shown that its consumption can reduce the effects of menopause like hot flashes
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People talk about Rice bran itself is also potentially high in arsenic. But Rice bran oil has the same probability of having arsenic in it as any other edible oil as well as any cultivated food. If someone argues that Rice bran oil has arsenic, then he should know that the soil in which the rice has been cultivated, if free from arsenic, then the chance of rice bran importing arsenic into it arises. This chance is no more than any other oils including olive, canola, coconut, hazelnut, palm, grapefruit, sunflower or any other oil. So people shouldn’t worry about it much, if they don’t worry about other grains also.
Rice bran might help lower cholesterol because the oil it contains has substances that might decrease cholesterol absorption and increase cholesterol elimination. One of the substances in rice bran might decrease calcium absorption; this might help reduce the formation of certain types of kidney stones.
Conclusion on Rice Bran Oil
Rice Bran Oil is the healthiest oil according to the recommended most fatty acid levels by Indian Council of Medical Research. The National Institute of Nutrition and The Indian Council of Medical Research recommend oils that have an equal proportion of saturated fatty acids, monounsaturated fats and polyunsaturated fats. Rice bran oil has an almost balanced fatty acid composition that is close to this ratio. Rice bran oil is rich in monounsaturated and polyunsaturated fats and free of trans-fats.
A human clinical study was conducted by scientists of National Institute of Nutrition, Indian Council of Medical Research to prove hypolipidemic effect of RBO. They studied this on 12 hyperlipidemic patients, Subjects were told to replace their usual oil (any oil used previously) with Rice Bran oil. A significant decrease in bad cholesterol was noticed after period of 15 days in all 12.
National Institute of Nutrition (The Apex body of Nutrition in India) in its Dietary guidelines for year 2011 has mentioned that Oryzanol found in Rice Bran Oil is helpful in reducing cholesterol and oxidative damage due to ageing, inflammation which occur in chronic diseases.
It is not just the MUFA: PUFA ratio that is important but the ratio of SFA: MUFA: PUFA that is important. And according to the latest recommendations by National Institute of Nutrition (NIN) and Indian Council of Medical Research (ICMR)the ideal fatty acid composition is 27-33% : 33-40% : 27-33%. And the fatty acid composition of Rice bran oil comes closest to these recommendations with the percentages at 24: 42: 34.” The SFA: MUFA: PUFA ratios of various oils were discussed and it concluded with the fact that Rice
Bran Oil indeed has the most ideal fat composition, better frying stability and offers unique health benefits due to phytosterols present in it.
DATA RECEIVED FROM wikipedia
Posted By naturepure