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Method for preparing plant sterol ester-containing functional health-care grease

A technology of phytosterol esters and phytosterols, which is applied in the field of vegetable oil extraction and processing, can solve the problems of harsh reaction conditions, prone to side reactions, and dehydration of phytosterols, and achieve good product quality, environmental protection, and simple equipment Effect

Inactive Publication Date: 2012-01-18
SOYBEAN TECH DEV RES CENT HEILONGJIANG PROV
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AI Technical Summary

Problems solved by technology

The process conditions of the chemical method are simple, easy to control and realize industrial production, but the disadvantage is that the reaction temperature is high, and side reactions are prone to occur, resulting in fatty acid oxidation and phytosterol dehydration, etc.
The reaction conditions of the enzymatic method are relatively mild, the side reactions are less, the product quality is good and easy to be purified and separated, but the enzymatic method generally requires the addition of organic solvents during the reaction process, the enzyme is expensive, the reaction conditions are harsh, and the production cost is high. in laboratory research

Method used

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  • Method for preparing plant sterol ester-containing functional health-care grease
  • Method for preparing plant sterol ester-containing functional health-care grease
  • Method for preparing plant sterol ester-containing functional health-care grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 Preparation of functional health-care soybean oil containing phytosterol esters

[0044] (1) Regulating lipase moisture: in the vacuum drying phase TL IM immobilized lipase adjusted to the optimum moisture content of 0.1%;

[0045] (2) Mixing of raw materials: 100g soybean oil ester, 5.2g phytosterol and 1.0g Add TL IM immobilized lipase into the reaction kettle and stir to make the lipase evenly distributed in the mixed system of phytosterol and oil ester;

[0046] (3) get rid of air: the air in the reactor is repeatedly replaced 3-5 times with nitrogen, and the air in the reactor is all removed;

[0047] (4) Nitrogen: When adding nitrogen, first open the valve in the nitrogen bottle, when the nitrogen reaches a certain amount, close the valve of the reactor, and then close the valve of the nitrogen bottle, while ensuring that the pressure inside and outside the reactor is consistent;

[0048] (5) Esterification reaction: Strictly control the heating rate ...

experiment example 1

[0112] Experimental Example 1 Process parameter optimization test

[0113] 1. Experimental design

[0114] According to the preliminary experiment, on the basis of the single factor experiment, select the appropriate factor and level to carry out the rotary orthogonal combination design to optimize the reaction conditions of the bioenzymatic synthesis of phytosterol ester at atmospheric pressure. According to the factor level coding table given in table 3, select reaction temperature (℃), enzyme dosage (%) and sterol addition (%) three factors as independent variable (xi) with the conversion rate (%) of phytosterol ester as Response value (Y), carried out the quadratic rotation orthogonal test design, a total of 23 test points, the change interval of each factor was determined by the preliminary test, each test point was done with 3 parallel sample tests, and the average value was taken to optimize the cross-section. Linkage reaction conditions. The experimental data were an...

experiment example 2

[0163] Experimental example 2 Animal experiments

[0164] The effects of different doses of phytosterol-containing soybean oil on blood lipid levels in hyperlipidemic mice were studied. Compared with the high-fat model group, phytosterol esters can significantly reduce serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels, increase HDL-C / LDL-C and HDL-C / TC values, and reduce arterial The hardening index (AI) has no significant effect on the level of triglyceride (TG); soybean oil containing phytosterols has the effect of regulating blood lipids, and soybean oil containing phytosterols begins to have a significant effect of lowering blood lipids when it is higher than 75mg / kg·BW. Statistically significant difference (P<0.05).

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Abstract

The invention relates to a method for preparing plant sterol ester-containing functional health-care grease. The method for preparing plant sterol ester-containing functional health-care grease is characterized in that: the plant sterol ester-containing functional health-care grease is obtained by realizing ester exchange between grease and plant sterol ester with a biological enzyme method; and the highest transformation rate can be up to 86 percent. In the method, a plant sterol ester-containing product is developed by adopting an enzymatic ester exchange technology. The method comprises the advantages of mild reaction condition, high efficiency, specificity, environmental friendliness, small quantity of by-products, good product quality, and the like. Compared with a chemical method, the method has the advantages of small investment, simple equipment, low energy consumption, low production cost, environmental friendliness and contribution to environmental protection.

Description

technical field [0001] The invention relates to a preparation method of vegetable oil, in particular to a preparation method of functional health-care oil containing phytosterol ester, belonging to the field of extraction and processing of vegetable oil. Background technique [0002] In recent years, with the continuous improvement of people's living standards, the number of people with excess nutrition and unreasonable diet structure is increasing. Therefore, the number of people suffering from cardiovascular disease is also increasing. The "China Cardiovascular Disease Report 2007" issued by the Cardiovascular Disease Prevention and Research Center of the Ministry of Health mentioned: "It is estimated that the number of patients with cardiovascular disease in my country is at least 230 million, and 2 out of every 10 adults have cardiovascular disease. It is estimated that every year in my country There are 3 million cardiovascular deaths, and 1 out of every 3 deaths is due...

Claims

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Application Information

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IPC IPC(8): A23D7/04
Inventor 胡立志陈昊江连洲朱秀清于殿宇孙树坤
Owner SOYBEAN TECH DEV RES CENT HEILONGJIANG PROV
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