A kind of oil-soluble rosemary antioxidant and preparation method thereof

Abstract

The invention discloses an oil-soluble rosemary antioxidant which comprises powdery rosemary lipid solubility antioxidants, Spann 20, tween 80 and octyl acid glyceride. The weight ratio of the powderyrosemary lipid solubility antioxidants, the Spann 20, the tween 80 to the octyl acid glyceride is (1-3):(1-3):(0.1-0.5):(1-2). The invention further provides a preparation method of the oil-soluble rosemary antioxidant. The oil-soluble rosemary antioxidant can be instantly dissolved in edible oil and is not layered and precipitated when being stored for a long time, product states are stable, production processes are simple, raw material usage rate is high, zero loss is achieved, and industrial production and application are facilitated.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to an oil-soluble rosemary antioxidant and a preparation method thereof. Background technique [0002] Rosemary is a small evergreen shrub of the Labiatae family, a spice plant, native to the Mediterranean coast, and is now widely cultivated all over the world, including some provinces in southwestern my country. The main planting areas are Guizhou, Xinjiang, Yunnan, Hunan and Hainan. Rosemary essential oil, carnosic acid, carnosol, rosmarinic acid and other main substances can be extracted from the leaves of rosemary. Among them, rosemary essential oil is used as a flavor in spices, air fresheners, and termite repellents. As well as daily chemical industries such as sterilization and insecticide; as high-quality natural antioxidants, carnosic acid, carnosol, and rosmarinic acid are widely used in medicine, fried food, oil-rich food and various oils and fats. ...

AI Technical Summary

Problems solved by technology

The invention patent selects the supercritical carbon dioxide extraction method as the production process, which has high production cost, low raw material utilization rate, low production capacity and efficiency; the Chinese invention patent "comprehensive extraction of rosemary and method for preparing fat-soluble instant antioxidant" (Patent No. 201110021081.X) discloses a method for preparing fat-soluble instant antioxidants. Dissolve powdered fat-soluble antioxidants in ethanol of a certain concentration, add edible oil, and recover ethanol under reduced pressure to make fat-soluble antioxidants The ingredients are transferred to the edible oil, which is called "transfer method"

The production process of this method is complicated, and solvents need to be used, and solvents are recovered. Finally, insoluble matter needs to be removed, and ethanol residues are likely to remain in the obtained products.