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A kind of preparation method of loaded carotene grease gel

A technology of oil gel and carotene, applied in the direction of edible oil/fat, food science, application, etc., to achieve the effect of mild conditions, guaranteed safety, and simple preparation method

Active Publication Date: 2019-05-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ceramide as a gelling agent, carotene is added as a nutrient to prepare a vegetable oil-based grease gel. There are no relevant literature and patent reports at home and abroad.

Method used

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  • A kind of preparation method of loaded carotene grease gel
  • A kind of preparation method of loaded carotene grease gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Accurately weigh 30 g of corn oil into a 100 mL beaker, add food-grade ceramide (CAS: 100403-19-8) with a mass fraction of 8% of the corn oil to the above corn oil, and use a magnetic stirrer at a temperature of 85 ℃ After stirring the sample at a stirring rate of 300rPm for 30min, immediately add 0.5% (accounting for the mass percentage of corn oil, the same below) carotene, heating and stirring for 10min, that is, transfer to a 5°C refrigerator (cooling rate of 5°C / min) and store for 24h to obtain product. The test method of the following example is the same, that is, 95% ethanol is used to extract curcumin, and the content of curcumin in the product is measured by an ultraviolet spectrophotometer, and the calculated load rate is 90.12%.

Embodiment 2

[0023] Accurately weigh 25 g of corn oil into a 100 mL beaker, add food-grade ceramide accounting for 10% of the corn oil mass to the above corn oil, and use a magnetic stirrer to stir the sample at a stirring rate of 350 rPm at a temperature of 85 °C for 30 min, and immediately add 1.5% carotene was heated and stirred for 10min, that is, transferred to a refrigerator at 5°C (cooling rate of 7°C / min), and kept at a constant temperature for 24h to obtain the product, and the load rate of the product was determined to be 93.45%.

Embodiment 3

[0025] Accurately weigh 30 g of corn oil into a 100 mL beaker, add 12% of the corn oil by mass and food grade ceramide to the above corn oil, use a magnetic stirrer to stir the sample at a stirring rate of 400 rPm at a temperature of 85 °C for 30 min, and add it immediately. 5.0% carotene was heated and stirred for 10min, that is, transferred to a refrigerator at 5°C (cooling rate of 8°C / min), and stored for 24h to obtain the product. The load rate of the product was determined to be 91.78%.

[0026] Compared figure 1 and figure 2 found that carotene-added lipogels ( figure 2 ) and unadded grease gel ( figure 1 ) are very similar in microstructure, mainly forming fibrous and sheet-like structures. It shows that carotene is not involved in the formation of the microstructure of lipogel, and its internal three-dimensional structure is mainly composed of ceramide. Ceramides encapsulate carotene dissolved in oil through a tighter network structure, thereby increasing its loa...

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Abstract

The invention relates to a preparation method of fat gel capable of loading carotene. The method comprises the steps of adding 8-12% of food-grade ceramide to maize oil, performing heating at 85 DEG C, stirring for 30min at a revolution speed of 200-400rPm, allowing ceramide to be uniformly dissolved in the oil, adding 0.5-5wt% of carotene to a mixture, continuing to react for 10-15min, cooling to 5-25 DEG C at a cooling rate of 1-10 DEG C / min, storing for 24h at a constant temperature, and obtaining the fat gel capable of highly loading the carotene. The preparation method is simple, mild in condition and low in cost; the obtained fat gel is stable in property and good in oxidation resistance; a load rate of the carotene reaches above 90%; and the fat gel can serve as a high-quality carotene carrying system and can be compounded with other stearin for preparing food shaping fat with high nutritive value.

Description

technical field [0001] The invention relates to the technical field of supramolecular chemical technology and plastic fat preparation for food, in particular to a preparation method of carotene-loaded oil gel. technical background [0002] Carotene has a very unique physiological function. In recent years, the application of carotene has expanded from the pharmaceutical field to the food industry. There are already injections, capsules and tablets in the market. However, these forms of carotene have a series of problems such as poor stability and low bioavailability. Plastic fat is a kind of raw material widely used in food and has relatively stable properties. The preparation of a carotene-loaded plastic fat can not only effectively improve its retention rate in food, but also enhance the nutrition and function of traditional plastic food. It is in line with the current pursuit of high nutritional versatility of food by consumers and the food industry. [0003] Lipid gel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23D9/04A23D9/007
Inventor 刘国琴万文博
Owner SOUTH CHINA UNIV OF TECH