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Stable anthocyanidin prepared by novel membrane separation technology and method

An anthocyanin, stable technology, applied in the field of stable anthocyanin and its preparation, can solve the problems of limited application, low stability, low yield, etc., and achieve the effect of high color value and stable properties

Active Publication Date: 2013-07-03
BANNERBIO NUTRACEUTICALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a natural anthocyanin with good stability and its preparation for the current situation of low yield, low stability and limited application of natural anthocyanin products in the prior art. method

Method used

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  • Stable anthocyanidin prepared by novel membrane separation technology and method
  • Stable anthocyanidin prepared by novel membrane separation technology and method
  • Stable anthocyanidin prepared by novel membrane separation technology and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1: Extracting Anthocyanins from Purple Sweet Potatoes Using Membrane Distillation / Ultrafiltration Combined Technology

[0043] 1) Grinding 10KG of fresh purple sweet potato, adding 6 times the weight of 30% ethanol aqueous solution, and performing dynamic circulation extraction in a multifunctional ethanol extraction tank to obtain an extract;

[0044] 2) Concentrate the extract, stir and mix, and sink in water for 16 hours;

[0045] 3) filter the above-mentioned water-sinking liquid plate frame, and separate to obtain a clear filtrate;

[0046] 4) Add the above-mentioned filtrate to the feed liquid tank of the P-type UF-19 membrane ultrafiltration device (purchased from Xiamen Sanda Membrane Technology Co., Ltd.);

[0047] 5) Use an organic membrane with a relative molecular weight cut-off of 200,000 to carry out continuous ultrafiltration. During ultrafiltration, the temperature of the material is controlled at about 30°C, and the return valve is adjusted to ...

Embodiment 2

[0050] Example 2: Anthocyanins extracted from purple sweet potato using membrane nanofiltration / ultrafiltration combined technology

[0051] 1) Crush 10KG of fresh purple sweet potato, and use 8 times the weight of pure water to carry out dynamic circulation extraction in a multifunctional ethanol extraction tank to obtain an extract;

[0052] 2) The above-mentioned extraction liquid is separated by microfiltration membrane filtration to obtain a clear filtrate;

[0053] 3) Add the above-mentioned filtrate to the feed liquid tank of the P-type UF-19 membrane ultrafiltration device;

[0054] 4) Use an organic membrane with a relative molecular weight cut-off of 300,000, and use an ultrafiltration membrane and / or nanofiltration membrane to perform continuous ultrafiltration and nanofiltration processes, and the material temperature is controlled at about 30°C;

[0055] 5) Collect the filtered liquid, concentrate under reduced pressure, and spray dry to obtain 120 grams of antho...

Embodiment 3

[0059]Example 3 Making microencapsulated anthocyanins

[0060] Add gum arabic to purified water at 50-60°C and stir, then gradually add purified water to make a 3% homogeneous colloidal solution. The refrigerated anthocyanin powder is formulated into a 30% aqueous solution. Add 1 / 3 volume of anthocyanin solution into the aforementioned gum arabic solution, and stir well. Spray dry. The anthocyanin pigment powder coated with gum arabic can be prepared.

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Abstract

The invention relates to a stable anthocyanidin prepared by a novel membrane separation technology and a method. The method comprises the following steps: S1, acquiring a raw material extract in a raw material; S2, filtrating the raw material extract by a membrane to obtain a clarification filtrate; S3, performing membrane distillation concentration, drying the clarification filtrate to obtain the stable anthocyanidin; and S4, performing with microencapsulation or liposome-wrapped treatment on the stable anthocyanidin. The preparation method of stable anthocyanidin can obtain the anthocyanidin with characteristics of high color value and stable property, the anthocyanidin comprises more than 60% of cyaniding and Peonidin, has a plurality of human body physiological activities, and can be widely used in various food and nourishment.

Description

technical field [0001] The invention relates to the technical field of food processing, more specifically, to a stable anthocyanin and a preparation method thereof. Background technique [0002] Pigments are a large class of additives in our daily food, which make up the colorful and attractive hues in food. At present, most of the pigments used in the food industry are synthetic pigments. Stable color and low acquisition cost. The disadvantage is that it has certain potential toxic and side effects, and long-term use will endanger human health. With the continuous improvement of people's living standards, the concept of natural health is constantly returning. It has become a consensus that natural pigments replace synthetic pigments. In 2010, the European Union, the United States and other markets have issued a series of strict laws and regulations. Synthetic pigments such as tartrazine and carmine that we are familiar with in the past will gradually withdraw from the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/275A23L1/30
Inventor 陈文良左小峰周云张孝友
Owner BANNERBIO NUTRACEUTICALS
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