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Preparation process of high-linoleic-acid antioxidant powdered oil

A technology of powdered oil and high linoleic acid, applied in edible oil/fat, food science, application, etc., can solve problems such as temperature rise, unsuitable microencapsulation of heat-sensitive materials, fast drying speed, etc.

Pending Publication Date: 2020-11-03
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of powdered oil by microwave drying is easy to operate, and good powder or granules can be obtained in only one process, but the drying speed is fast, and the temperature rises too fast, so it is not suitable for microencapsulation of heat-sensitive materials

Method used

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  • Preparation process of high-linoleic-acid antioxidant powdered oil
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  • Preparation process of high-linoleic-acid antioxidant powdered oil

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preparation example Construction

[0019] A preparation process of high linoleic acid anti-oxidation powder oil, characterized in that the method comprises the following steps: (1) preparation of glycosylated protein: Weigh soybean protein isolate (purity ≥ 92%) and dextran (70KDa) respectively Soybean protein isolate solution and 0.5-2.0% (w / v) dextran solution, soybean The isolated protein solution and the dextran solution were mixed at a volume ratio of 3:1-1:2, stirred and homogenized, fully hydrated overnight (12-16h) in a refrigerator at 4°C, then freeze-dried and stored at a humidity of 79%, 60 React at ℃ for 12 hours to obtain glycosylated protein; (2) Emulsion preparation: prepare a glycosylated protein solution (phosphate buffer solution 0.1M, pH 7.0) with a mass fraction of 3.0-5.0% (w / v), stir at room temperature for 12 hours to fully Dissolve, then add the mass concentration of 1.5-3.0% (w / v) gallocatechin and the mass concentration of 1.0-2.5% (w / v) conjugated linoleic acid respectively, use a hig...

Embodiment 1

[0024] A preparation process of high linoleic acid anti-oxidation powder oil, characterized in that the method comprises the following steps: (1) preparation of glycosylated protein: Weigh soybean protein isolate (purity ≥ 92%) and dextran (70KDa) respectively Soy protein isolate solution and mass fraction of 0.5% (w / v) dextran solution, soybean protein isolate solution and The dextran solution was mixed at a volume ratio of 3:1, stirred homogeneously, fully hydrated in a refrigerator at 4°C overnight (12-16h), then freeze-dried and reacted at a humidity of 79% and 60°C for 12h to obtain glycosylated protein ; (2) Emulsion preparation: configure the glycated protein solution with a mass fraction of 3.0% (w / v) (phosphate buffer solution 0.1M, pH 7.0), stir at room temperature for 12 hours to fully dissolve it, and then add a mass concentration of 1.5 % (w / v) gallocatechin and mass concentration are 1.0% (w / v) conjugated linoleic acid, use high-speed shearing machine to emulsify...

Embodiment 2

[0026]A preparation process of high linoleic acid anti-oxidation powder oil, characterized in that the method comprises the following steps: (1) preparation of glycosylated protein: Weigh soybean protein isolate (purity ≥ 92%) and dextran (70KDa) respectively Soy protein isolate solution and mass fraction of 2.0% (w / v) dextran solution, soybean protein isolate solution and The dextran solution was mixed at a volume ratio of 1:2, stirred homogeneously, fully hydrated in a refrigerator at 4°C overnight (12-16h), then freeze-dried and reacted at a humidity of 79% and 60°C for 12h to obtain glycosylated protein ; (2) Emulsion preparation: configure a glycosylated protein solution (phosphate buffer solution 0.1M, pH 7.0) with a mass fraction of 5.0% (w / v), stir at room temperature for 12 hours to fully dissolve it, and then add % (w / v) gallocatechin and mass concentration are 2.5% (w / v) conjugated linoleic acid, use high-speed shearing machine to emulsify at 12000r / min rotating spe...

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Abstract

The invention discloses a preparation process of high-linoleic-acid antioxidant powdered oil, and belongs to the technical field of functional powdered oil processing. The process comprises the following specific steps: (1) mixing a soybean protein isolate solution with a glucan solution, and performing freeze-drying to obtain glycated protein; (2) mixing the glycated protein solution with a gallocatechin solution and a conjugated linoleic acid solution, and carrying out high-speed shearing emulsification treatment; (3) performing jet cavitation treatment on the mixed emulsion to obtain a nano-emulsion; and (4) performing microwave constant-temperature convection drying on the nano-emulsion to obtain the high-linoleic-acid antioxidant powdered oil. According to the process, jet cavitationand microwave constant-temperature convection drying technologies are combined to prepare the high-linoleic-acid antioxidant powdered oil, and the powdered oil produced by the process is good in sensory quality, high in linoleic acid content and high in oxidation resistance, and has a wide application prospect.

Description

[0001] The invention belongs to the technical field of functional powder oil processing, and mainly relates to a preparation process of high linoleic acid anti-oxidation powder oil. Background technique [0002] Powdered oil is the process of turning emulsion oil into dry powder by various methods such as spray drying, crushing or coating, which can delay the oxidation of oil in food, enhance storage stability, and reduce food quality deterioration. As a food ingredient, powdered oil can improve the convenience of its storage and circulation, and expand its application range in food, such as infant formula milk powder, convenience food, solid beverage and other fields. The preparation of powdered oil by microwave drying method is easy to operate, and good powder or granules can be obtained in only one process, but the drying speed is fast, and the temperature rises too fast, so it is not suitable for microencapsulation of heat-sensitive materials. Therefore, it is very necessa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/007A23D9/04
CPCA23D9/007A23D9/04
Inventor 王中江郭增旺梁亚茹杨宗瑞徐悦郭亚男
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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