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Chia seed oil microcapsules and preparation method thereof

A technology of chia seed oil and microcapsules, which is applied in the fields of edible oil/fat, food forming, food science, etc., can solve the problems of harmful peroxides and damage to nutritional value of oil, and achieve strong anti-oxidation ability and fluidity Good, low moisture content effect

Active Publication Date: 2021-04-16
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because chia seed oil contains a large amount of unsaturated fatty acids, it is easy to cause harmful peroxides in the oil under external influences such as light, heat and air, destroying the nutritional value

Method used

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  • Chia seed oil microcapsules and preparation method thereof
  • Chia seed oil microcapsules and preparation method thereof
  • Chia seed oil microcapsules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation of chia seed oil microcapsules comprises the following steps:

[0047](1) Preparation of heat-denatured whey protein isolate (WPI): take whey protein isolate powder and dissolve it in water to prepare a whey protein isolate solution with a concentration of 1 wt%, add 0.03 wt% sodium azide solution, and Stir magnetically for 1 hour to ensure that the whey protein isolate is fully hydrated, let stand at 4°C for 8 hours, adjust the pH of the system to 7 with 1mol / L NaOH solution, and then heat at 80°C for 30 minutes to completely denature the protein, then Cool to room temperature and set aside;

[0048] (2) Preparation of tremella polysaccharide: Soak, wash and remove impurities from the tremella, dry it, and pass through a 120-mesh sieve after crushing to obtain tremella powder. Distilled water is added to the tremella powder according to the mass ratio of 1:70, and the water bath environment is 90 Heating at ℃ for 4 hours to obtain an extract, centrifug...

Embodiment 2

[0052] Preparation of Chia Seed Oil Microcapsules:

[0053] (1) Preparation of heat-denatured whey protein isolate liquid: take whey protein isolate powder and dissolve it in water to prepare a whey protein isolate solution with a concentration of 0.8 wt%, add 0.04 wt% sodium azide solution, and stir magnetically at room temperature 1h, to ensure that the whey protein isolate is fully hydrated, let it stand at 2°C for 7h, adjust the pH of the system to 7 with 1mol / L NaOH solution, then heat at 75°C for 40min to completely denature the protein, and then cool to room temperature, spare;

[0054] (2) Preparation of tremella polysaccharide: Soak tremella, wash, remove impurities, dry, crush and pass through a 120-mesh sieve to obtain tremella powder, add distilled water to the tremella powder according to the mass ratio of 1:60, water bath environment, 95 Heating at ℃ for 3.5h to obtain an extract, centrifuging the extract at a speed of 4000r / min for 10min to obtain a supernatant...

Embodiment 3

[0058] The preparation of chia seed oil microcapsules comprises the following steps:

[0059] (1) Preparation of heat-denatured whey protein isolate liquid: take whey protein isolate powder and dissolve it in water to prepare a whey protein isolate solution with a concentration of 1.2wt%, add 0.02wt% sodium azide solution, and stir magnetically at room temperature 1h, to ensure that the whey protein isolate is fully hydrated, let it stand at 8°C for 10h, adjust the pH of the system to 7 with 1mol / L NaOH solution, then heat at 85°C for 20min to completely denature the protein, and then cool to room temperature, spare;

[0060] (2) Preparation of tremella polysaccharide: Soak tremella, wash, remove impurities, dry, crush and pass through a 120-mesh sieve to obtain tremella powder, add distilled water to the tremella powder according to the mass ratio of 1:80, water bath environment, 85 Heating at ℃ for 4.5h to obtain an extract, centrifuging the extract at a speed of 3500r / min ...

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Abstract

The invention discloses a chia seed oil microcapsule and a preparation method thereof, and belongs to the technical field of health food processing, the core material of the microcapsule comprises chia seed oil, and the wall material comprises whey protein isolate and tremella polysaccharide; the preparation method comprises the following steps: preparing a thermal denatured whey protein isolate solution; preparing tremella polysaccharide; dissolving tremella polysaccharide in water, adding a thermal denatured whey protein isolate solution into the obtained tremella polysaccharide solution, then adding chia seed oil into the obtained mixed solution, and homogenizing to obtain an emulsion; and carrying out spray drying to obtain the chia seed oil microcapsule. The chia seed oil microcapsule is high in chia seed oil embedding rate, excellent in quality, high in oxidation resistance, good in stability and not prone to oxidative deterioration, so that the oxidation stability of the chia seed oil is improved, and the storage period and the shelf life of the chia seed oil are greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of health food processing, and in particular relates to a chia seed oil microcapsule and a preparation method thereof. Background technique [0002] Chia Seeds are the seeds of Chia (scientific name Chia sage), native to southern Mexico and northern Guatemala. Chia seeds are rich in nutrients. Fat and high-quality protein are the main substances that make up the inner cotyledon, and contain high dietary fiber and various vitamins and minerals. The fat content in chia seeds is about 35%, of which monounsaturated fatty acids account for about 7.9%, polyunsaturated fatty acids account for 85% of the total fatty acids, and the n-3 series of polyunsaturated fatty acids is as high as 68%. Among the known natural plants, chia seed oil has the highest alpha-linolenic acid content, and it is significantly higher than perilla seed and flaxseed. Chia seeds and chia seed oil also contain a large number of natural anti...

Claims

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Application Information

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IPC IPC(8): A23L33/12A23L33/125A23L33/19A23P10/30A23D9/06A23D9/007
Inventor 刘婷婷王大为张艳荣
Owner JILIN AGRICULTURAL UNIV
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