Method for preparing fish gelatin-benzyl isothiocyanate emulsion

A technology of benzyl isothiocyanate and fish skin gelatin, which is applied in food forming, food ingredients as emulsifiers, food ingredients containing natural extracts, etc., can solve problems such as easy volatility, poor water solubility, and limited applications, and achieve The effect of improving retention rate, good stability, and simple and easy preparation method

Active Publication Date: 2018-12-25
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] BITC has poor water solubility and is volatile, which greatly limits its application in food

Method used

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  • Method for preparing fish gelatin-benzyl isothiocyanate emulsion
  • Method for preparing fish gelatin-benzyl isothiocyanate emulsion
  • Method for preparing fish gelatin-benzyl isothiocyanate emulsion

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preparation example Construction

[0094] The present invention provides a kind of preparation method of fish skin gelatin-benzyl isothiocyanate emulsion, take fish skin gelatin and benzyl isothiocyanate, the preparation steps are as follows:

[0095] In the preferred mode, the specific steps are:

[0096] S1. Dissolve benzyl isothiocyanate in corn oil, shake fully, and prepare an oil phase with a mass concentration of 2-8 mg / mL for use;

[0097] S2. Weighing fish skin gelatin and dissolving it in 0.05-0.1M citric acid-sodium citrate buffer solution with pH 3-pH 4 to prepare an aqueous phase gelatin solution with fish skin gelatin mass concentration of 1%-3% for use;

[0098] S3. Mix the oil phase prepared in step S1 with the water phase gelatin solution prepared in step S2 according to the addition amount of 2.5% to 10% of the water phase volume, and disperse at a high speed of 10,000 to 15,000 r / min for 2 to 3 minutes;

[0099] S4. 10000-12000 psi high-pressure homogenization for 5-7 times to prepare the pro...

Embodiment 1

[0101] A kind of preparation method of fish skin gelatin-benzyl isothiocyanate emulsion, its preparation step is as follows:

[0102] S1, dissolving benzyl isothiocyanate in corn oil, fully shaking, and preparing an oil phase with a mass concentration of benzyl isothiocyanate of 5 mg / mL for use;

[0103] S2. Weighing fish skin gelatin and dissolving it in 0.05M citric acid-sodium citrate buffer solution with a pH of 3.5 to prepare an aqueous phase gelatin solution with a fish skin gelatin mass concentration of 1% for use;

[0104] S3. Mix the oil phase prepared in step S1 with the water phase gelatin solution prepared in step S2 according to the addition amount of 2.5% of the water phase volume, and disperse at a high speed of 10000r / min for 2min;

[0105] S4, 12000 psi high pressure homogenization 5 times to obtain a stable fish skin gelatin-benzyl isothiocyanate product emulsion.

Embodiment 2

[0107] S1, dissolving benzyl isothiocyanate in corn oil, fully shaking, and preparing an oil phase with a mass concentration of benzyl isothiocyanate of 5 mg / mL for use;

[0108] S2. Weighing fish skin gelatin and dissolving it in 0.05M citric acid-sodium citrate buffer solution with a pH of 3.5 to prepare an aqueous phase gelatin solution with a fish skin gelatin mass concentration of 1% for use;

[0109] S3. Mix the oil phase prepared in step S1 with the water phase gelatin solution prepared in step S2 according to the addition amount of 5% of the volume of the water phase, and disperse at a high speed of 10000r / min for 2min;

[0110] S4, 12000 psi high pressure homogenization 5 times to obtain a stable fish skin gelatin-benzyl isothiocyanate product emulsion.

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Abstract

The invention discloses a method for preparing a fish gelatin-benzyl isothiocyanate emulsion. The method includes the steps of S1), preparation of an oil phase, namely dissolving benzyl isothiocyanateinto corn oil and preparing the same into the oil phase for standby application; S2), preparation of a water phase, namely weighing a certain amount of the fish gelatin dissolved in a buffer and preparing the fish gelatin into the water phase for standby application; S3), mixing, namely mixing the oil phase with the water phase in a certain proportion before high-speed dispersion; S4), homogenizing, namely performing high-pressure homogenization to obtain the stable fish gelatin-benzyl isothiocyanate emulsion. In the method, the fish gelatin is taken as the emulsion, and the benzyl isothiocyanate is embedded to obtain the stable fish gelatin-benzyl isothiocyanate emulsion; the benzyl isothiocyanate taken as the embedding material can improve digestion and absorption efficiency in the human body, so that the product has a higher efficacy value; the method is simple in preparation and easy to implement, the obtained emulsion is small in particle size, the absolute value of electrokinetic potential is high, oil droplets are evenly distributed in a laser confocal image, and good stability is achieved.

Description

technical field [0001] The invention relates to the technical field of emulsion preparation, in particular to a method for preparing fish skin gelatin-benzyl isothiocyanate emulsion. Background technique [0002] Fat-soluble active substances refer to a class of substances that can be dissolved in fat and then ingested, digested and absorbed by the human body and have special activity. Common fat-soluble active substances include fish oil, algae oil, phospholipids, and fat-soluble vitamins. They have the disadvantages of low stability, poor solubility, and low bioavailability. In order to protect fat-soluble active substances, a common method is to embed them using an oil-in-water (O / W) emulsion system. However, the emulsion system has a large oil-water interface, low physical stability, and is prone to demulsification under certain conditions, which limits its application in food. Therefore, it is of great significance to explore new active ingredient carriers and explor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L33/17A23P10/30A23L29/10A23L2/38A23L2/52A23L2/66
CPCA23L2/38A23L2/52A23L2/66A23L29/10A23L33/105A23L33/17A23P10/30A23V2002/00A23V2200/222A23V2200/224A23V2250/543A23V2250/5432A23V2250/21
Inventor 唐越王笑涵姜卉吴海涛林松毅安婧陈禹竹
Owner DALIAN POLYTECHNIC UNIVERSITY
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