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Preparation method of sustained-release anthocyanin micro-capsules

A technology of microcapsules and anthocyanins, which is applied in the forming of food, the function of food ingredients, and food ingredients containing natural extracts, etc. problems, to achieve the effect of enhancing bioavailability, accelerating dehydration, and reducing dissolved oxygen

Active Publication Date: 2018-09-28
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, materials such as gelatin, chitosan, sodium alginate or water-soluble dextrin are commonly used as microcapsule wall materials, which are prepared by dissolving anthocyanins in them and drying them. Low embedding rate, poor slow-release effect

Method used

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  • Preparation method of sustained-release anthocyanin micro-capsules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of slow-release anthocyanin microcapsules, the specific operation steps are as follows:

[0029] Step 1: Take peony petals at the flower bud stage, remove impurities and wash them, dry the surface moisture, and set aside; 700MHz microwave for 5 minutes to obtain pretreated materials.

[0030] Step 2, add 60 DEG C of distilled water in the pretreatment material, heat preservation treatment 10min, get the primary material; Add 2% phenylalanine, 3% salt and 1.7% citric acid of its mass in the primary material, stir Dissolving phenylalanine, salt and citric acid, beating to obtain a slurry; hydraulically filtering the slurry at a pressure of 30MP to obtain a filtrate; wherein, the amount of distilled water added is 1 / 3 of the mass of the pretreated material.

[0031] Step 3: Add modified starch, casein and maltodextrin to the filtrate, treat in a water bath at 55-60°C and stir until fully dissolved to obtain a mixed solution; wherein, the amount of modi...

Embodiment 2

[0038] A preparation method of slow-release anthocyanin microcapsules, the specific operation steps are as follows:

[0039] Step 1: Take peony petals at the flower bud stage, remove impurities and wash them, dry the surface moisture, and set aside; 710MHz microwave for 6 minutes to obtain pretreated materials.

[0040] Step 2, add 65 DEG C of distilled water in the pretreatment material, heat preservation treatment 8min, get the primary material; Add its mass fraction in the primary material to be 3% phenylalanine, 3.5% salt and 1.8% citric acid, Stir to dissolve and make an oar to obtain a slurry; hydraulically filter the slurry at a pressure of 35MP to obtain a filtrate; wherein the amount of distilled water added is 1 / 3 of the mass of the pretreated material.

[0041] Step 3: Add modified starch, casein and maltodextrin to the filtrate, treat in a water bath at 55-60°C and stir until fully dissolved to obtain a mixed solution; wherein, the amount of modified starch, casein...

Embodiment 3

[0048] A preparation method of slow-release anthocyanin microcapsules, the specific operation steps are as follows:

[0049] Step 1. Take peony petals at the flower bud stage, remove impurities and wash them, dry the surface moisture, and set aside; microwave at 720 MHz for 5 minutes to obtain pretreated materials.

[0050] Step 2, add 63 DEG C of distilled water in the pretreatment material, heat preservation treatment 10min, get the primary material; Add its mass fraction in the primary material to be 2.5% phenylalanine, 3.2% salt and 1.5% citric acid, Stir to dissolve, beating to obtain a slurry; hydraulically filter the slurry at a pressure of 40MP to obtain a filtrate; wherein, the amount of distilled water added is 1 / 2 of the mass of the pretreated material.

[0051] Step 3: Add modified starch, casein and maltodextrin to the filtrate, treat in a water bath at 55-60°C and stir until fully dissolved to obtain a mixed solution; wherein, the amount of modified starch, casei...

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Abstract

The invention relates to a preparation method of sustained-release anthocyanin micro-capsules, and belongs to the field of micro-capsules. The preparation method of the sustained-release anthocyanin micro-capsules comprises the following steps of performing fixation treatment on petal raw materials; adding warm water so as to be subjected to thermal insulation, adding phenylalanine, edible salt and citric acid, carrying out beating after dissolving so as to obtain pulp, and carrying out filter-pressing so as to obtain filtrate; dissolving modified starch, casein and maltodextrin in the filtrate, and carrying out spray-drying so as to obtain micro-capsules I; dissolving casein-sodium and vitamin C in the filtrate, wrapping the micro-capsules I with the solution so as to obtain micro-capsules II; dissolving sodium alginate in the filtrate, wrapping the micro-capsules II with the solution so as to obtain micro-capsules III; and then, dissolving sodium alginate and maltodextrin in water, wrapping the micro-capsules III with the solution, and carrying out drying so as to obtain finished products of the sustained-release anthocyanin micro-capsules. According to the preparation method ofthe sustained-release anthocyanin micro-capsules, pretreatment is carried out in advance during extraction process of anthocyanin so as to reduce degradation of the anthocyanins, so that stability isenhanced; moreover, multilayer-wrapping is performed on anthocyanin particulates by using different wall materials, so that the embedding rate is increased with sustained-release effects enhanced. Thus usability of the sustained-release anthocyanin micro-capsules in functional products can be improved so as to promote play of physiological function.

Description

technical field [0001] The invention belongs to the field of microcapsules, and in particular relates to a preparation method of slow-release anthocyanin microcapsules. Background technique [0002] Microcapsule technology, also known as microcapsule embedding technology, or microcapsule granulation technology, is to wrap solid, liquid or even gas in a tiny, airtight capsule, so as to effectively control the release of the wrapped core material so as to protect It is a process that is not affected by external conditions. Usually, the material constituting the shell of the microcapsule is called "wall material" or "coating", and the material wrapped inside the microcapsule is called "capsule core" or "core material". The core material can be solid, liquid or gaseous. my country has long begun to study the application of this technology in the food field, powdering liquid food, isolating active ingredients in food from the environment, and protecting ingredients that are sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L33/19A23L33/15A23L33/10A23P10/30A23L29/30A23L29/00
CPCA23V2002/00A23L29/03A23L29/30A23L33/10A23L33/105A23L33/15A23L33/19A23P10/30A23V2200/30A23V2250/21A23V2250/54246A23V2250/5114A23V2250/708
Inventor 刘伟尹冬雪侯小改薛娴张利霞贾琦石
Owner HENAN UNIV OF SCI & TECH
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