Extraction of high activity milk thistle oil and preparation method of microcapsule of high activity milk thistle oil

A technology of milk thistle oil and high activity, which is applied in the biological field to achieve the effects of increasing content, improving physical and chemical properties, and expanding the scope of application

Inactive Publication Date: 2019-07-05
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report about the extraction of highly active milk thistle oil and the preparation of its microcapsules

Method used

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  • Extraction of high activity milk thistle oil and preparation method of microcapsule of high activity milk thistle oil
  • Extraction of high activity milk thistle oil and preparation method of microcapsule of high activity milk thistle oil
  • Extraction of high activity milk thistle oil and preparation method of microcapsule of high activity milk thistle oil

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Experimental program
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Effect test

Embodiment 1

[0027] (1) choose the milk thistle seed with complete particle, adopt mechanical pulverization, the material after pulverizing passes 60 mesh sieves; Then sherwood oil and dehydrated alcohol are mixed with volume ratio 7:3, obtain mixed solvent; Milk thistle powder Mix evenly with the mixed solvent at the ratio of material to liquid 1:3, ultrasonically extract for 10min under the condition of ultrasonic power of 100W; centrifuge the mixed solution for 20min under the condition of rotating speed of 5000r / min, remove the residue and then vacuum concentrate and recover the solvent Then dry to obtain milk thistle oil;

[0028] (2) Add milk thistle oil to a fully dissolved gum arabic solution with a mass fraction of 1% to obtain a mixed solution A, then add monoglyceride as an emulsifier, and stir at a high speed for 3 minutes at a speed of 10000 r / min Make an emulsion, then add a soybean protein isolate solution with a mass fraction of 1% dropwise at 45°C with a magnetic stirring ...

Embodiment 2

[0031] (1) choose the milk thistle seed with complete particle, adopt mechanical pulverization, the material after pulverizing passes 60 mesh sieves; Then sherwood oil and dehydrated alcohol are mixed with volume ratio 7:3, obtain mixed solvent; Milk thistle powder Mix evenly with the mixed solvent at the ratio of solid to liquid 1:7, ultrasonically extract for 40min under the condition of ultrasonic power of 300W; centrifuge the mixed solution for 20min under the condition of rotating speed of 5000r / min, remove the residue and then vacuum concentrate and recover the solvent Then dry to obtain milk thistle oil;

[0032] (2) Add milk thistle oil to a fully dissolved gum arabic solution with a mass fraction of 3% to obtain a mixed solution A, then add monoglyceride as an emulsifier, and stir at a high speed for 2 minutes at a speed of 5000 r / min Prepare an emulsion, and then add a soybean protein isolate solution with a mass fraction of 3% dropwise at 45°C under the condition of...

Embodiment 3

[0035](1) choose the milk thistle seed with complete particle, adopt mechanical pulverization, the material after pulverizing passes 60 mesh sieves; Then sherwood oil and dehydrated alcohol are mixed with volume ratio 7:3, obtain mixed solvent; Milk thistle powder Mix evenly with the mixed solvent at the ratio of solid to liquid 1:4, ultrasonically extract for 20min under the condition of ultrasonic power of 240W; centrifuge the mixed solution for 20min under the condition of rotating speed of 5000r / min, remove the residue and then vacuum concentrate and recover the solvent Then dry to obtain milk thistle oil;

[0036] (2) Add milk thistle oil to a fully dissolved gum arabic solution with a mass fraction of 5% to obtain a mixed solution A, then add monoglyceride as an emulsifier, and stir at a high speed for 5 minutes at a speed of 20,000 r / min Make an emulsion, and then add a soybean protein isolate solution with a mass fraction of 5% dropwise at 45°C under the condition that...

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Abstract

The invention discloses an extraction of high activity milk thistle oil and a preparation method of a microcapsule of high activity milk thistle oil, and belongs to the technical field of biological processing. The preparation method comprises following steps: taking milk thistle seeds as the raw material, grinding milk thistle seeds, extracting milk thistle seeds by a mixed solvent composed of petroleum ether and anhydrous ethanol under the assistance of ultrasonic waves, carrying out centrifugal separation, vacuum concentration, and drying to prepare the high activity milk thistle oil; taking the milk thistle oil as the core material, carrying out emulsification by using an emulsifier glycerol stearate, taking soy isolate protein and Arabic gum as the wall material, and performing dissolving, homogenizing, re-agglomerating, centrifuging, and freeze-drying to obtain the milk thistle oil microcapsule. Under the assistance of ultrasonic waves, a mixed solvent is used to extract milk thistle seeds, the extraction time is short, the activity of the oil is obviously enhanced; the air in the microcapsule is expelled, unsaturated fatty acids in the oil are protected, the stability is improved, and the shelf life is prolonged. Moreover, the microcapsule has the advantages of good flowing property and good brewing property and is convenient to use, the product forms are enriched, andapplication range of the milk thistle oil is enlarged.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a method for extracting highly active milk thistle oil and preparing microcapsules thereof. Background technique [0002] Milk thistle is a herbaceous plant of the genus Milk thistle in the family Asteraceae, and is an excellent medicinal plant and oil plant. Milk thistle seeds contain about 3.0% to 5.0% silymarin and 20% to 30% milk thistle oil. The medicinal active ingredient of milk thistle is silymarin, which has the functions of protecting the liver, anti-oxidation, lowering blood fat, and anti-cancer. Since milk thistle oil was approved as a new resource food by the Ministry of Health in 2014, it has gradually attracted the attention of researchers. In milk thistle oil, oleic acid accounts for 20% to 40%, linoleic acid accounts for 30% to 70%, and the total unsaturated fatty acid is as high as more than 80%. In addition, it also contains β-sitosterol, stigmasterol and other s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10B01J13/10
CPCC11B1/106B01J13/10
Inventor 朱淑云杨靖邵锋徐斌董英
Owner JIANGSU UNIV
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