Agro-industry yields ample quantity of several byproducts with considerable importance. These byproducts are mostly under-utilized, often used as animal feed or rejected as waste; hence their true potential is not harnessed. The use of such superfluous resources is of not only economic significance but also a form of commercial recycling. Rice bran is an important byproduct of rice milling industry with a global potential of 29.3 million tons annually. It is gaining great attention of the researchers due to its nutrient-rich composition, easy availability, low cost, high antioxidant potential, and promising effects against several metabolic ailments. Bioactive components of rice bran, mainly γ-oryzanol, have been reported to possess antioxidant, anti-inflammatory, hypocholesterolemic, anti-diabetic, and anti-cancer activities. Rice bran oil contains appreciable quantities of bioactive components and has attained the status of “Heart oil” due to its cardiac-friendly chemical profile. Nutraceutics have successfully been extracted from rice bran using several extraction techniques such as solvent extraction, supercritical fluid extraction, microwave-, and ultrasonic-assisted extraction. Current paper is an attempt to highlight bioactive moieties of rice bran along with their extraction technologies and health benefits.

农产品工业产生大量副产物，具有相当重要的意义。这些副产品大多未得到充分利用，经常用作动物饲料或被当作废物丢弃；因此，他们的真正潜力没有得到利用。使用这些多余的资源不仅具有经济意义，而且具有商业回收的形式。米糠是碾米工业的重要副产品，每年的全球潜力为2930万吨。由于其营养成分丰富，易于获得，成本低，抗氧化潜力高以及对几种代谢疾病的有效作用，它引起了研究人员的极大关注。据报道，米糠的生物活性成分，主要是γ-谷维素，具有抗氧化，抗炎，降胆固醇，抗糖尿病和抗癌活性。米糠油含有大量的生物活性成分，并且因其对心脏有益的化学特性而获得了“心脏油”的称号。使用多种萃取技术，例如溶剂萃取，超临界流体萃取，微波和超声辅助萃取，成功地从米糠中提取了营养食品。当前的论文试图突出米糠的生物活性部分及其提取技术和健康益处。