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Preparation method of high-dietary-fiber oleogel

A technology of high dietary fiber and oil gel, applied in the field of food science, achieves the effect of simple and convenient method, good stability, and convenient long-term storage and transportation

Inactive Publication Date: 2017-10-27
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the researches reported so far focus on the construction of the oil-gel system, and there are almost no reports on the research on reducing the heat of the oil-gel and endowing it with new functions. Therefore, the development of oil-gel with high dietary fiber content has broad applications prospect

Method used

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  • Preparation method of high-dietary-fiber oleogel
  • Preparation method of high-dietary-fiber oleogel
  • Preparation method of high-dietary-fiber oleogel

Examples

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preparation example Construction

[0035] The preparation conditions of the drying method are: temperature: 50-90 DEG C, time: 3-10 hours. The preferred drying temperature is 50°C and the drying time is 10 hours;

[0036] The preparation conditions using the freezing method are: temperature: -25° C.; time: 5 hours.

[0037] The oil gel is obtained by adding food additives to promote the formation of gels in the emulsion. The additives are food safety approved additives. The additives calcium chloride, calcium carbonate, calcium citrate or calcium oxalate are added in an amount of 10-100mmol / g Hydrocolloid, calcium chloride is preferably added, and the addition amount is up to 50mmol / g hydrocolloid.

Embodiment 1

[0039] Example 1. Weigh 0.05g of microcrystalline cellulose powder with a size of 500nm prepared from pure wood pulp, add it to 100mL of distilled water, stir and dissolve at room temperature to obtain a microcrystalline cellulose aqueous dispersion solution, and then weigh 0.05g The xanthan gum powder and the aqueous cellulose dispersion solution were blended uniformly. Then, measure 10mL soybean oil and join in the mixed solution of above-mentioned cellulose and xanthan gum, stir and disperse under the rotation number of 2000rpm in the mechanical mixer for 30 minutes, prepare the oil-in-water emulsion (see figure 1 ), the oil-in-water emulsion was left to stand for 3 hours and the stratification was obvious, and the particle size distribution was observed under a microscope. The prepared emulsion was placed in a ventilated drying oven and dried at 50°C for 10 hours to obtain a high dietary fiber oil gel. The oil layer on the surface of the sample was obviously separated and ...

Embodiment 2

[0040] Example 2. Weigh 0.1 g of microcrystalline cellulose powder with a size of 500 nm prepared from pure wood pulp, add it to 100 mL of distilled water, stir and dissolve at room temperature to obtain a microcrystalline cellulose aqueous dispersion solution, and then weigh 0.1 g The xanthan gum powder and the aqueous cellulose dispersion solution were blended evenly. Then, measure 20mL of soybean oil and add it to the above-mentioned mixed solution of cellulose and xanthan gum, stir and disperse for 15 minutes under the rotation number of 8000rpm in a mechanical mixer to prepare an oil-in-water emulsion, and leave the oil-in-water emulsion for 3 hours That is, the stratification is obvious, and the particle size distribution is not uniform under the microscope observation. The prepared emulsion was placed in a ventilated drying oven and dried at 50°C for 10 hours to obtain a high dietary fiber oil gel. A small amount of oil layer precipitated on the surface of the sample an...

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Abstract

The invention relates to a preparation method of high-dietary-fiber oleogel. The preparation method comprises the steps of preparing cellulose water dispersion, mixing the cellulose water dispersion and hydrophilic colloid, dispersing oil phase in the mixed system to prepare oil-in-water emulsion, and treating the oil-in-water emulsion to obtain the oleogel, or adding food additives to promote the emulsion to form gel to obtain the oleogel, wherein the treatment method comprises a drying method and a freezing method. Cellulose particles service as emulsifiers, the hydrophilic colloid serves as a stabilizer and a thickening agent, the cellulose particles are irreversibly adsorbed on the oil water interface, the hydrophilic colloid intersperse the cellulose network structure to jointly form a three-dimensional network structure, liquid fat can be constrained efficiently, the prepared emulsion gel has high stability, and long-time storage and transportation are facilitated; the method is simple, convenient, high in dietary fiber content of the prepared high-dietary-fiber oleogel, economic and environmentally friendly; the oleogel is physical gel, does not change the chemical property of the oil phase, avoids generation of trans-fatty acid, and has good application prospect in the fields of food, medicines and cosmetics.

Description

technical field [0001] The invention belongs to the fields of food science and technology, and in particular relates to a preparation method of high dietary fiber oil gel. Background technique [0002] Artificial fats contain a lot of trans fatty acids and saturated fatty acids. Excessive intake of trans fatty acids and saturated fatty acids will increase the body's low-density lipoprotein content, which will have a great negative impact on cardiovascular health. Therefore, in recent years, many countries have Actively take measures to limit or even prohibit the use of related artificial fats in food to reduce the incidence of cardiovascular diseases. The ingested trans fatty acids and saturated fatty acids mainly come from hydrogenated vegetable oils, so reducing the content of trans fatty acids and saturated fatty acids in hydrogenated vegetable oils and developing edible oils that replace artificial hydrogenated oils have become one of the current research hotspots. Nowa...

Claims

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Application Information

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IPC IPC(8): A23L29/00A23L29/10A23L29/269A23L29/244A23L29/231A23L29/256A23L29/275A23L29/262A23L29/25A23L29/225A23P10/30
CPCA23L29/04A23L29/10A23L29/225A23L29/231A23L29/244A23L29/25A23L29/256A23L29/262A23L29/27A23L29/275A23P10/30A23V2002/00A23V2200/224A23V2200/222A23V2200/242A23V2250/18A23V2250/51084A23V2250/5086A23V2250/5066A23V2250/50724A23V2250/5036A23V2250/5026A23V2250/511A23V2250/51086A23V2250/51088A23V2250/5028A23V2250/5118A21D2/188A23D7/0053A23V2200/228
Inventor 刘石林张兴中吴霞何康慧
Owner HUAZHONG AGRI UNIV
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