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Acid-proof type microalgae DHA oil microcapsule powder and preparation method thereof

A technology of microcapsules and oils, applied in the directions of food preparation, food ingredient function, food forming, etc., can solve the problems of microalgae DHA oil microcapsule structure damage, affecting product quality, attenuation and deterioration, etc., to achieve odor characteristics and stability. Good properties, low moisture and surface oil content, anti-spill and oxidation resistance

Active Publication Date: 2015-03-25
RUNKE BIOENG FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of its application and addition, because these acidic food systems present acidity, the wall materials of the existing common microalgae DHA oil microcapsule powder generally adopt macromolecular protein bases and carbohydrate materials, which are basically easy to use. Hydrolysis, especially in an acidic water food environment (pH ≥ 3.5), because the wall material does not have strong acid resistance, it is easier to be degraded after being dissolved by acid, which greatly damages the microcapsule structure of microalgae DHA oil, making the Part of the microalgal DHA oil is exposed in the water system, so it is easily affected by oxygen, metal ions, light and heat, resulting in oxidative deterioration, which reduces the content of microalgal DHA and causes attenuation and deterioration. The oxidation products are low-level ketones, aldehydes, etc., which are volatile These substances will cause fishy smell, paint smell and other bad smells in the food added with microalgae DHA, making it difficult to swallow, deteriorating the taste of the product and affecting the quality of the product
In addition, the application of microalgae DHA in these acidic foods will not only be affected by factors such as low pH, oxygen, and metal ions, but also be subjected to high-temperature treatments such as boiling and sterilization, as well as shearing and homogenization during the processing process. The impact of technology will seriously affect the stability of microalgae DHA, and the wall material of protein-based substances is very easy to denature and flocculate during the shelf life of food in an acidic water system environment
In addition, carbohydrate substances are also easily soluble in water. During the long-term food shelf life, macromolecular carbohydrate substances will be degraded by acid, so that the general microalgae DHA oil microcapsule powder can be used in acidic water food systems. (pH ≥ 3.5) application is limited, it is easy to cause oxidative deterioration of DHA

Method used

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  • Acid-proof type microalgae DHA oil microcapsule powder and preparation method thereof
  • Acid-proof type microalgae DHA oil microcapsule powder and preparation method thereof
  • Acid-proof type microalgae DHA oil microcapsule powder and preparation method thereof

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Effect test

preparation example Construction

[0059] (1) Put whey protein, hydrophilic colloid, food emulsifier, water-soluble antioxidant in antioxidant, part of chelated salt in acidity regulator and part of sweetener into water at 70-75°C, keep warm Dissolve for 30 minutes, then stir until completely dissolved and then cool down to 50-55°C to obtain an aqueous phase liquid;

[0060] (2) First use a small amount of microalgae DHA oil to mix the oil-soluble antioxidant in the antioxidant, then stir the remaining microalgae DHA oil at a temperature of 65-70°C and add it to the mixed antioxidant , and continue to stir, until the core material is obtained after uniformity;

[0061] (3) Put the core material obtained in step (2) into the aqueous phase liquid obtained in step (1), and continuously stir for 20-30 minutes, and then perform shearing operation at a speed of 5000-7000 rad / min for 3-5 minutes , for the first embedding to obtain an emulsion;

[0062] (4) Homogenize the emulsion obtained in step (3) twice, the firs...

Embodiment 1

[0068] The above substances are weighed or measured according to the required amount, and then prepared according to the following steps:

[0069] (1) Whey protein, pectin, carboxymethylcellulose sodium (CMC-Na), sodium alginate, hydroxypropyl methylcellulose (HPMC), monoglyceride fatty acid ester, sodium caseinate, lemon Sour fatty acid glycerides, D-sodium erythorbate, potassium dihydrogen phosphate, maltodextrin and part of glucose were put into water at 75°C, kept warm and dissolved for 30 minutes, then stirred until completely dissolved and then cooled to 50°C to obtain an aqueous phase liquid;

[0070] (2) First use a small amount of microalgae DHA oil to mix L-ascorbyl palmitate and vitamin E, then stir the remaining microalgae DHA oil at a temperature of 70°C and add it to the mixed antioxidant. And continue to stir, after being uniform, the core material is ready for use;

[0071] (3) Put the core material obtained in step (2) into the aqueous phase liquid obtained i...

Embodiment 2

[0086] The above substances are weighed or measured according to the required amount, and then prepared according to the following steps:

[0087] (1) Whey protein, pectin, carboxymethylcellulose sodium (CMC-Na), sodium alginate, hydroxypropyl methylcellulose (HPMC), monoglyceride fatty acid ester, sodium caseinate, lemon Sour fatty acid glycerides, D-sodium erythorbate, potassium dihydrogen phosphate, maltodextrin and part of glucose were put into water at 70°C, kept warm and dissolved for 30 minutes, then stirred until completely dissolved and then cooled to 55°C to obtain an aqueous phase liquid;

[0088] (2) First use a small amount of microalgae DHA oil to mix L-ascorbyl palmitate and vitamin E, then stir the remaining microalgae DHA oil at a temperature of 65°C and add it to the mixed antioxidant. And continue to stir, after being uniform, the core material is ready for use;

[0089] (3) Put the core material obtained in step (2) into the aqueous phase liquid obtained i...

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Abstract

The invention relates to an acid-proof type microalgae DHA oil microcapsule powder and a preparation method thereof. The acid-proof type microalgae DHA oil microcapsule powder is prepared from 12.6%-30.3% of core materials and 69.7%-87.4% of wall materials, concretely comprising the following active ingredients in percentage by weight: 12.5%-30.0% of microalgae DHA oil, 0.1%-0.3% of antioxidant, 25.0%-50.0% of whey protein, 3.0%-8.0% of food emulsifier, 20.0%-54.4% of sweetener, 4.40%-8.0% of hydrophilic colloid, and 0.60%-1.20% of acidity regulator. The prepared acid-proof type microalgae DHA oil microcapsule powder has good acid-proof property, and can be applied in a food system of an acid water system with pH of more than or equal to 3.5, the oxidization speed of microalgae DHA can be effectively reduced and delayed, the activity of the microalgae DHA can be maintained, the stability of microalgae DHA in acid water system food can be enhanced, and the shelf life of the acid water system food with microalgae DHA can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of food production, and relates to an acid-resistant microalgae DHA oil microcapsule powder and a preparation method thereof. Background technique [0002] DHA (docosahexaenoic acid), also known as docosahexaenoic acid, commonly known as brain gold, is a very important long-chain polyunsaturated fatty acid (LCPUFA), which belongs to the n-3 series of polyene fatty acids. An important member of the polyunsaturated fatty acid family. DHA is a main element for the growth and maintenance of nervous system cells. It is an important component of the brain and retina. Its content in the human cerebral cortex is as high as 20%, and it accounts for the largest proportion in the retina of the eye, accounting for about 50%. DHA helps For the vision and eye development of adolescents and children, it is mainly manifested in the following aspects: (1) promote brain development and memory; (2) promote the functional deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/29A23L1/00A23L33/00A23P10/00
CPCA23L33/12A23P10/47A23V2002/00A23V2200/30A23V2250/1868A23V2250/54252A23V2250/184A23V2250/5072A23V2250/51088A23V2250/5026A23V2250/5108A23V2250/712A23V2250/61A23V2250/5114A23V2250/032
Inventor 李建平黄巍峰
Owner RUNKE BIOENG FUJIAN
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