The global demand for high-quality, sustainable oils is on the rise, and rice bran oil, known for its rich γ-oryzanol content, is becoming increasingly popular. However, traditional extraction methods using hexane raise environmental concerns due to the solvent's toxicity and environmental impact. Addressing this challenge, researchers at Chulalongkorn University have turned to liquefied dimethyl ether (LDME) as an alternative extraction solvent.