A method for extracting sterenols from vegetable oil deodorization distillates

Abstract

The invention discloses a method for extracting sterol from vegetable oil deodorizing distillate. According to the method, the waste vegetable oil deodorizing distillate generated in an edible oil refining process is used for producing a valuable environment-friendly plant-sourced original drug sterol; a saturated cyclic ketone solvent is selected, cyclohexanone is used as a dissolving solution, the solubility difference of the sterol in a distillate extract along with the temperature change is great, and the solubility differences of other steroids along with the temperature change are small, so that not only is the quality index of the sterol guaranteed, but also the yield is increased; the method is relatively simple in process, relatively low in cost and mature in technology; material reaction happens under a normal circumstance, and sources of raw materials are wide; meanwhile, the method provided by the invention is applicable to industrial and large-scale production.

Description

technical field [0001] The invention relates to the technical field of phytochemistry, in particular to a method for extracting sterenols from vegetable oil deodorization distillates. Background technique [0002] Pesticides play a very important role in agricultural production. In recent years, my country's pesticide industry has developed very rapidly. In 2005, it broke through the million-ton mark for the first time, surpassing the United States to become the world's largest pesticide producer. With the improvement of people's living standards and environmental awareness, most countries attach great importance to the safety of agricultural products, and the restrictions on pesticide residues are very strict. Highly toxic organophosphorus pesticides will gradually fade out of the market. New pesticides have become a top priority. Environmental protection is the requirement for the development of the pesticide industry. Green pesticides, with their high efficiency, low tox...

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Problems solved by technology

[0004] (1) Due to the absolute parasitism of the virus on the host (specialized parasitism), the energy and materials required for its replication are provided by the host cell. Although there are many mixed preparations, there is a lack of single-compound pesticide varieties that directly act on the virus, resulting in the prevention and control of less effective;

[0005] (2) At present, the vast majority of drugs registered in China use morpholine hydrochloride as the main ingredient, and morpholine hydrochloride has long been used in the treatment of clinical viral diseases. If it is used for a long time in food crops, fruits and vegetables, etc., it will cause Drug residues, long-term consumption of food with residues will usually cause drug resistance problems in the human body;

[0006] (3) The long-term and large-scale application of chemical virus preparations will cause serious "pesticide public hazards"

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