Preparation for active octacosa alkanol and triaconta alkanol in rice bran

Abstract

A process for prepairng octacosonal and triacontanol from rice bran, especially the rice bran wax includes such steps as refining rice bran wax, ultrasonic hydrolysis for 1 hr to extract emtrol, and molecular distilling for separating octacosanol and triacontanol. Its advantages are ultrasonic hydrolysis time decreased from 12-16 hr to 1 hr, and high purity of products (more than 80%).

Description

technical field

[0001] The invention discloses a method for preparing rice bran active substances octacosanol and triacontanol, which belongs to the comprehensive utilization of rice bran, especially the comprehensive utilization of rice bran wax. Background technique

[0002] Rice bran is the husk obtained by grinding the fruit body of rice, a family plant, and its content accounts for about 5-6% of rice. my country's rice output is one-third of the world's, and the annual output of rice bran reaches 9 million tons. Rice bran oil contains about 16.3%, and rice bran oil contains 3-4% wax. The potential output of rice bran wax in my country is 50,000 tons per year. Octacosanol and triacontanol are biologically active functional substances, mainly distributed in plant epidermis and germ, etc. They are abundant in rice bran wax. According to literature reports, some scholars have determined that octacosanol accounts for 12.73%. , fatty acid 1.03%. Thirty carbon fatty alcohol ...