Method for extracting vitamin E and phytosterin from cottonseed oil deodorizer distillate

Abstract

The invention discloses a method for extracting vitamin E and phytosterin from cottonseed oil deodorizer distillate, comprising the following steps that: methanol is added by taking cottonseed oil deodorizer distillate as raw material, reaction is proceeded by taking strong-acid cation exchange resin as catalyst so that free fatty acid in the raw material is converted into relative methyl ester; the catalyst is filtered; the filtrate is evaporated and is then formulated into mixed solution with ethanol after methanol and water are removed, after the mixed solution passes through an adsorptioncolumn filled with adsorbent, bed is washed with ethanol until the effluent solution is transparent and clear, and the effluent solution is collected; the adsorption column is eluted with acetic acidethanol solution, the eluant is collected and then subjected to reduced pressure evaporation, and vitamin E is acquired after the solvent is removed; the material of the effluent solution in which ethanol is removed by evaporation is dissolved in methanol, crystals are separated subsequent to temperature reduction and standing under stirring, and phytosterin crystals are acquired by filtering separation. The invention simplifies the steps for reaction and has the characteristics of small corrosiveness to equipment, no environmental pollution, simple operation and less equipment investment.

Description

technical field [0001] The invention relates to a method for extracting vitamin E and phytosterols, in particular to a method for extracting vitamin E and phytosterols from cottonseed oil deodorized distillates. Background technique [0002] The deodorized distillate of cottonseed oil contains fatty acids, glycerides, phytosterols, vitamin E and other components. [0003] Vitamin E (VitaminE), also known as tocopherol, is a fat-soluble vitamin. Is a lipid that stabilizes cells and reacts with peroxides to make them harmless to cells. Therefore, vitamin E is widely used in pharmaceutical products, which can be used to prevent diseases such as arteriosclerosis, cerebral hemorrhage, liver disease and diabetes. In addition, vitamin E can also be used in oil, food, cosmetics, and feed for livestock and poultry. There are two types of vitamin E: chemical synthetic products and natural products. Natural vitamin E is superior to chemically synthesized vitamin E in terms of physio...

AI Technical Summary

Problems solved by technology

[0007] Some of the above processes use strong acid or strong base to catalyze esterification. Strong acid or strong base will seriously corrode the equipment, and produce acidic or alkaline wastewater, pollute the environment, and need post-treatment before discharge; some use lipase to catalyze esterification, although the reaction Mild conditions, no environmental pollution, but lipase is expensive, easy to inactivate, difficult to store

When separating, high vacuum distillation, molecular distillation or supercritical extraction are used. These methods have short process routes and less loss of vitamin E, but the equipment investment is large, the operating cost is high, and the processing capacity is relatively small.