Method for preparing powdered oil by compounding octenylsuccinic anhydride (OSA) modified starch with xanthan gum

A technology of octenyl succinic anhydride and powdered oil, which is applied in the directions of edible oil/fat, food science, application, etc., can solve the problems of low encapsulation efficiency and poor product stability of microencapsulated powdered oil, and achieve novel encapsulation, Good stability and high encapsulation efficiency

Inactive Publication Date: 2019-12-20
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention will solve the technical problems of low encapsulation efficiency and poor product stability of microencapsulated powdered oil prepared by the existing method; and provide a method for preparing powdered oil by compounding octenyl succinic anhydride modified starch and xanthan gum, To achieve the purpose of improving the encapsulation efficiency of microencapsulated powder oil, improving product stability and controlling release

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0021] Specific embodiment one: the present embodiment is carried out according to the following steps by the method for compounding powdery oil and fat of octenyl succinic anhydride modified starch and xanthan gum:

[0022] Step 1: Mix corn starch with a solid-liquid ratio of 1:6 and 0.65M HCl solution, react in a water bath at 50°C for 12 hours, then adjust the pH value of the mixture to neutral, stop the acid hydrolysis reaction, and obtain hydrolysis after centrifugal drying starch

[0023] Step 2: Mix the hydrolyzed starch with a solid-to-liquid ratio of 1:3 and the aqueous solution, add 5% (volume) OSA solution into the starch slurry within 2 hours, and keep the pH of the slurry at 8.5. The reaction was continued for 1 h, and then the pH value of the starch slurry was adjusted to 6.5. The slurry is centrifugally washed with water, dried to obtain OSA modified starch;

[0024] Step 3. Mix OSA modified starch and xanthan gum at a mass ratio of 80:1 for 24 hours at room t...

Embodiment approach 2

[0028] Specific implementation method 2: The difference between this implementation method and specific implementation method 1 is that in step 1, the reaction time is 24 hours. Other steps and parameters are the same as the specific implementation method 1.

[0029] The encapsulation efficiency was 91.6±0.9%; it increased from 1.36meq / kg at 0 days to 6.78meq / kg at 35 days, and the increasing trend was slow. And the release amount of oil in simulated gastric juice is: 25.7%

Embodiment approach 3

[0030] Specific implementation method three: the difference between this implementation method and specific implementation method one is: in step three, the mass ratio of OSA modified starch to xanthan gum is 60:1. Other components and steps are the same as the specific implementation method one.

[0031] The encapsulation efficiency was 86.6±1.8%; it increased from 0.45meq / kg on day 0 to 5.86meq / kg on day 35, and the increasing trend was slow. And the release amount of oil in simulated gastric juice is: 19.5%

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Abstract

The invention discloses a method for preparing powdered oil by compounding octenylsuccinic anhydride (OSA) modified starch with xanthan gum, and belongs to the field of micro-encapsulated powdered oilpreparation. By selecting a mixture of the OSA modified starch and the xanthan gum as a wall material, the method for preparing the powdered oil by compounding the OSA modified starch with the xanthan gum is capable of solving the technical problems of low encapsulation efficiency, poor stability and the like of the micro-encapsulated powdered oil. The method for preparing the powdered oil by compounding the OSA modified starch with the xanthan gum comprises the following steps: step one, dispersing corn starch in an HCl solution of which the concentration is 0.65M, carrying out reaction in water bath at 50 DEG C for 0-24 hours so as to obtain a mixed solution, adjusting pH value of the mixed solution to neutral, terminating acid hydrolysis reaction, and carrying out centrifuging-drying so as to obtain hydrolyzed starch; step two, dispersing the hydrolyzed starch in an aqueous solution so as to obtain starch slurry, adding an OSA solution into the starch slurry within 2 hours with thepH value of the starch slurry kept at 8.5, continuing reaction for 1 hour, adjusting the pH value of the starch slurry to 6.5, Performing centrifugal water-washing on the starch slurry, and carryingout drying so as to obtain OSA modified starch; step three, mixing the OSA modified starch with the xanthan gum at room temperature for 24 hours so as to obtain wall material suspension liquid; step four, adding soybean oil into the wall material suspension liquid obtained in the step three, carrying out homogenization, and carrying out high-pressure homogenization for 2 times; and step five, carrying out spray-drying so as to obtain the powdered oil. The method for preparing the powdered oil by compounding the OSA modified starch with the xanthan gum is novel and rational in design, as well as simple in process; and moreover, the method also has the characteristics of being capable of significantly improving encapsulation rate of the powdered oil, enhancing product stability and so on.

Description

technical field [0001] The invention belongs to the field of preparation of microencapsulated powdered oil, and in particular relates to a method for preparing powdered oil by compounding octenyl succinic anhydride modified starch and xanthan gum. Background technique [0002] Powdered oil, also known as creamer and non-dairy creamer, is to use microcapsule technology to embed animal and plant oils with suitable substances, add emulsifying substances, stabilizing substances, flavor substances and other food accessories, after emulsifying technology treatment, spraying Drying technology produces powdery granular solid oily substances with uniform particle size. The core material is embedded inside the product, and the wall material is the part exposed to the outside of the product. The application effect of microcapsule technology largely depends on the choice of wall material, which will affect the encapsulation efficiency of microcapsules, insolubility index, wettability, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/04A23D9/007
CPCA23D9/04A23D9/007
Inventor 李杨孙禹凡齐宝坤武立春闫世长钟明明
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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