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Rice Bran Oil and Cholesterol
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A number of research results mention about the benefits of rice bran oil in reducing the risk of heart and coronary diseases because rice bran oil has suitable compositions which are:
- High in monounsaturated fatty acid
- Suitable fatty acid profile
- Natural substances that help reduce cholesterol includes Vitamin E Tocotrienol, natural Oryzanol and Phytosterol
Monounsaturated Fatty Acid: MUFA
Rice bran oil has more than 40% monounsaturated fatty acid or MUFA. It can help reduce the bad cholesterol or LDL-C (Low Density Lipoprotein Cholesterol), which can cause blood clot. Meanwhile, MUFA also helps increase or maintain the good cholesterol or HDL-C (High Density Lipoprotein Cholesterol), which help reduce the cholesterol in cells and blood.
Suitable Fatty Acid Profile
It is recommended that the suitable composition of fatty acid is Saturated Fatty Acid (SFA): Monounsaturated Fatty Acid (MUFA): Polyunsaturated Fatty Acid (PUFA) equals <10: 10-15: <10 of total energy per day1. When compared to other cooking oils, rice bran oil matches this composition closest of all.
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Source :
1. Adapted from ¹ÑÂ¹Ò ºØ·ÇÕ ÂØÇѲ¹ì áÅÐàÃÇ´Õ ¨§ÊØÇѲ¹ì, 2545, ¹ÓÁѹÃÓ¢éÒÇ ·Ò§àÅ×Í¡à¾×èÍÊØ¢ÀÒ¾¤¹ä·Â,
âÍà´Õ¹ÊâµÃì, ¡Ãا෾Ï, ˹éÒ 23.
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Natural substances that help lower cholesterol
Rice bran oil contains Vitamin E Tocotrienol, Oryzanol and ,Phytosterol which are natural substances that help lower the blood cholesterol level.
Vitamin E Tocotrienol is found most in rice bran oil. In addition to its ability in fighting free radicals, it helps obstruct cholesterol synthesis in the body1 and reduce the risk of cardiovascular diseases by stopping the bad cholesterol oxidation that could cause blood clot and reduce the efficiency of HMG CoA enzyme (3-hydroxyl-3-methylglutaryl-coenzyme A reductase), which is an essential enzyme in producing cholesterol in the body (Mevalonate Pathway).
In general, Vitamin E in rice bran oil comprises of 19-40% Vitamin E Tocopherol and 51-81% Vitamin E Tocotrienol.
• Oryzanol is a natural substance found only in rice bran oil, not in other vegetable oils. Oryzanol could reduce cholesterol level in the blood.
• Phytosterol is found more in rice bran oil when compared to other vegetable oils. Rice bran oil contains more than 17,000 ppm. of Phytosterol. Phytosterol’s outstanding benefit is to reduce cholesterol absorption.
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