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Preparation method of rhododendron pulchrum anthocyanin microcapsules, and product and application of rhododendron pulchrum anthocyanin microcapsules

A technology for glycoside microcapsules and azalea, which is applied in the field of preparation of azalea anthocyanin microcapsules, and achieves the effects of improving stability, good quality and protecting physiological activity.

Pending Publication Date: 2021-12-24
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant literature on the microcapsules with whey protein and gum arabic as the composite wall materials and Rhododendron splendens anthocyanin as the core material and its preparation method

Method used

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  • Preparation method of rhododendron pulchrum anthocyanin microcapsules, and product and application of rhododendron pulchrum anthocyanin microcapsules
  • Preparation method of rhododendron pulchrum anthocyanin microcapsules, and product and application of rhododendron pulchrum anthocyanin microcapsules
  • Preparation method of rhododendron pulchrum anthocyanin microcapsules, and product and application of rhododendron pulchrum anthocyanin microcapsules

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preparation example Construction

[0034] The present invention relates to a method for preparing Rhododendron splendens anthocyanin microcapsules, the steps of which are as follows:

[0035] Weigh a certain amount of prepared Rhododendron anthocyanin powder and dissolve it with a buffer solution with pH=1.5-3.5; then add monoglyceride into Rhododendron anthocyanin solution, stir and dissolve in a constant temperature water bath at 40-60°C , to form colostrum through high-speed homogenization; then put gum arabic and whey protein isolate into a buffer solution with a pH of 1.5 to 3.5 at 40 to 60°C and stir to dissolve them. After the two wall materials are completely dissolved, mix the two solutions mixing; finally adding colostrum for stirring, high-speed homogenization to form double emulsion, and then spray drying to obtain azalea anthocyanin microcapsules.

[0036] Preferably, the method is specifically as follows:

[0037] (1) Weigh the following raw materials in parts by weight: 1.5 parts of rhododendron...

Embodiment 1

[0046] Weigh 1.5g rhododendron anthocyanin and stir it with 15mL pH=3 buffer solution, add 0.05g monoglyceride into it, stir and dissolve it in a constant temperature water bath at 50°C, and form colostrum at high speed for 5 minutes. Dissolve 1.5g of whey protein isolate with 20mL of pH=3 buffer, 3.0g of gum arabic with 35mL of pH=3 buffer, and then put the two into a constant temperature water bath at 50°C and stir to dissolve. After the wall material is completely dissolved, mix the two solutions, add colostrum for stirring and mixing, and form double emulsion by high-speed homogenization for 5 minutes. The parameters of the spray dryer were set as follows: air inlet temperature 165°C, feed flow rate 450mL / h, outlet temperature 80°C, the double emulsion was spray-dried, and the embedding rate of the microcapsule product was 87.38%.

Embodiment 2

[0048] Weigh 1.5g rhododendron anthocyanins and dissolve them with 20mL of buffer solution with pH=3, add 0.1g monoglyceride into it, stir and dissolve in a constant temperature water bath at 50°C, and form colostrum at high speed for 5 minutes. Dissolve 2.5g of whey protein isolate with 20mL of pH=3 buffer, 5.0g of gum arabic with 30mL of pH=3 buffer, and then put the two into a constant temperature water bath at 50°C and stir to dissolve. After the wall material is completely dissolved, mix the two solutions, add colostrum for stirring and mixing, and form double emulsion by high-speed homogenization for 5 minutes. The parameters of the spray dryer were set as follows: air inlet temperature 165°C, feed flow rate 350mL / h, outlet temperature 80°C, and the double emulsion was spray-dried to obtain a microcapsule product embedding rate of 89.25%.

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Abstract

The invention provides a preparation method of rhododendron pulchrum anthocyanin microcapsules, and a product and application of the rhododendron pulchrum anthocyanin microcapsules. The method comprises the following steps: weighing a certain amount of prepared rhododendron pulchrum anthocyanin powder, and dissolving the rhododendron pulchrum anthocyanin powder in a buffer solution with a pH value of 1.5-3.5; adding monoglyceride into the rhododendron pulchrum anthocyanin solution, carrying out stirring and dissolving in a constant-temperature water bath at the temperature of 40 DEG C to 60 DEG C, and carrying out homogenizing at a high speed to form a primary emulsion; then, respectively putting Arabic gum and whey protein isolate into a buffer solution with the pH of 1.5-3.5 at the temperature of 40 DEG C to 60 DEG C, carrying out stirring and dissolving, and after two wall materials are completely dissolved, mixing the solution of the Arabic gum and the solution of the whey protein isolate; and finally, adding the primary emulsion, carrying out stirring, carrying out homogenizing at a high speed to form a compound emulsion, and carrying out spray drying, thereby obtaining the rhododendron pulchrum anthocyanin microcapsule. In the method, a mass ratio of the wall materials whey protein and the Arabic gum to the core material rhododendron pulchrum anthocyanin is 4: 1; and in a spray drying process, the temperature of an air inlet is 165 DEG C, and the feeding flow rate is 500mL / h. According to the preparation method, the original color and physiological activity of the rhododendron pulchrum anthocyanin can be effectively protected, the stability of the anthocyanin is improved, and the storage time is prolonged.

Description

【Technical field】 [0001] The invention relates to a preparation method of Rhododendron splendens anthocyanin microcapsules and its product and application. 【Background technique】 [0002] Rhododendron has luxuriant flowers and leaves and rich colors. It is a good resource for developing safe and natural anthocyanins. Splendid azalea (Rhododendron pulchrum Sweet.), rich in anthocyanins, is a water-soluble natural pigment, safe and non-toxic, is a flavonoid substance, has anti-inflammatory, anti-oxidation and other physiological activities, and is used in food, health products, It has potential development and application prospects in industries such as medicine. However, anthocyanins are easily affected by environmental factors such as light and temperature, and have poor stability, which limits their development and application. Therefore, the stability and utilization of anthocyanins can be improved by microencapsulation technology, thereby expanding the application field...

Claims

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Application Information

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IPC IPC(8): A23L2/395A23L33/105A23L2/42A23P10/30
CPCA23L2/395A23L33/105A23L2/42A23P10/30A23V2002/00A23V2200/30A23V2250/192A23V2250/21A23V2250/5022A23V2250/54252A23V2300/10A23V2300/26
Inventor 张梅娄本勇张燕杰陈为健
Owner MINJIANG UNIV
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