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Method for extracting sterol from vegetable oil deodorizing distillate

A technology for deodorizing distillates and vegetable oils, applied in the field of phytochemistry, can solve the problems of lack of single compound pesticide varieties, poor control effect, "pesticide pollution and other problems, and achieve the effect of wide range of raw material sources, short time and shortened production process

Active Publication Date: 2016-11-23
XIAN GUOBANG INDAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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"

Method used

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  • Method for extracting sterol from vegetable oil deodorizing distillate

Examples

Experimental program
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Effect test

Embodiment 1

[0048] A method for extracting sterenols from vegetable oil deodorization distillates, said method comprising the steps of:

[0049] (1) Measure 500ml in a 1000ml measuring cylinder, heat it to 60-90°C, keep it warm, then filter the deodorized distillate of cottonseed oil and 250ml of methanol through a 300-mesh screen to remove impurities, add 1000ml three-ear bottle and place it in an electric heating mantle Connect the reflux condensing device; turn on the heating, set the temperature to 65°C, turn on the stirring at the same time, adjust the speed to 80r / min, slowly drop in 20g of concentrated sulfuric acid, stop heating after 3h of reflux timing reaction, and wash with 80°C soft water to medium 485ml of reaction oil was obtained, and the sampling test showed that the acid value of reaction oil was 1.52mgKOH / g sample.

[0050] (2) Send the product washed with soft water into a multi-stage molecular distillation system for distillation, and turn on the multi-stage molecular...

Embodiment 2

[0054] The difference with Example 1 is that in step (1), pump 1000L cottonseed oil deodorization distillate and 500L methanol into the reactor, heat to 65°C and stir for 0.5h until fully dissolved; start esterification after adding 40kg of concentrated sulfuric acid catalyst Reaction: stop heating after timing for 2.5 hours, wash with soft water at 70°C three times, add 150kg of water each time, take a sample for testing, the pH value of the reaction oil is neutral after testing, and the acid value is 1.34mgKOH / g sample.

[0055] Based on the above, the method for extracting sterenols in the present invention adopts a multi-stage molecular distillation device. This process can complete decolorization, degassing, deodorization and other processes at one time, greatly shortening the production process. Under the condition of supercritical negative pressure, the material is heated evenly, the time is short, the degree of separation is high, and the temperature, vacuum degree, and...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 卜英强马里杨德
Owner XIAN GUOBANG INDAL