Rice bran nutraceutics: A comprehensive review.

Area of Science:

• Agricultural Science
• Nutritional Science
• Biochemistry

Background:

• Agro-industrial byproducts are often under-utilized, representing a loss of valuable resources.
• Rice bran, a major rice milling byproduct, is abundant globally and rich in nutrients.
• Bioactive components in rice bran, particularly gamma-oryzanol, show promising health benefits.

Purpose of the Study:

• To review the bioactive compounds present in rice bran.
• To discuss various extraction technologies for these compounds.
• To highlight the associated health benefits of rice bran derivatives.

Main Methods:

• Literature review of scientific publications on rice bran.
• Analysis of extraction techniques including solvent extraction, supercritical fluid extraction, microwave-assisted, and ultrasonic-assisted extraction.
• Compilation of research on the health effects of rice bran's bioactive components.

Main Results:

• Rice bran contains significant bioactive compounds, notably gamma-oryzanol.
• Gamma-oryzanol exhibits antioxidant, anti-inflammatory, hypocholesterolemic, anti-diabetic, and anti-cancer properties.
• Rice bran oil is recognized for its heart-friendly profile.

Conclusions:

• Rice bran is a valuable, under-utilized resource with substantial nutraceutical potential.
• Efficient extraction technologies are available to harness its bioactive components.
• Further research and application of rice bran derivatives can contribute to health and economic benefits.