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Preparation method of zein-bee pollen extract microcapsules

A technology of zein and bee pollen, which is applied in the field of food processing, can solve the problems of uneven encapsulation rate of microcapsule particles and the inability to release active ingredients in the stomach and intestines, and achieves the improvement of Fe2+ complexing ability and iron reduction resistance. Oxidative power, the effect of avoiding denaturation

Pending Publication Date: 2020-05-19
NORTHWEST UNIV(CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing zein-bee pollen extract microcapsules, which solves the problem that the active ingredients in the prior art cannot be released in the intestines and stomach, the prepared microcapsule particles are not uniform, and the The problem of low encapsulation rate

Method used

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  • Preparation method of zein-bee pollen extract microcapsules

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A preparation method of a zein-bee pollen extract microcapsule disclosed by the present invention specifically comprises the following steps:

[0028] (1) Preparation of bee pollen extract

[0029] Mix bee pollen and 70% ethanol solution according to the solid-liquid ratio (w / v) of 1:20, heat and reflux at 70°C for 2h, centrifuge at 4000r / min for 10min, and take the supernatant; After two refluxes, the supernatant was obtained by centrifugation after each reflux, the supernatants after each reflux and centrifugation were mixed together, concentrated by rotary evaporation at 40° C. to obtain a bee pollen extract.

[0030] (2) Preparation of zein-bee pollen extract microcapsules

[0031] a. With zein as the shell and bee pollen extract as the core. According to the mass ratio of zein and bee pollen extract is 2:1, weigh zein and bee pollen extract for later use; then dissolve zein into 80% ethanol solution to prepare 8% (w / v) Add the weighed bee pollen extract to the ...

Embodiment 2

[0038] 1. The zein-bee pollen extract microcapsules prepared in Example 1 and the comparative example were carried out to measure relevant parameters, and the determination methods all adopted spectrophotometry.

[0039] (1) Determination of flavonoid content in zein-bee pollen extract microcapsules

[0040] a. Rutin standard curve drawing

[0041] Weigh 0.01g of rutin and dissolve it in 85% (v / v) methanol, dilute to 50mL, and prepare 0.2mg / mL rutin standard solution. Add 0, 0.4, 0.8, 1.2, 1.6, 2.0mL rutin standard solution into 10mL test tubes respectively. Add 0.4mL 5% NaNO 3 , shake well and stand for 6min, add 0.4mL 10% Al(NO 3 ) 3 , oscillated and mixed, left for 6min, added 4mL of 4% NaOH, and then dilute to 10mL with methanol, mixed evenly, left for 15min, and measured the absorbance value at 510nm. Draw the standard curve, the measured curve equation is y=9.8298x+0.0223, R 2 = 0.9968.

[0042] b. Determination of flavonoid content in microcapsules

[0043] Weig...

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Abstract

The invention relates to the technical field of food processing, in particular to a preparation method of zein-bee pollen extract microcapsules. According to the specific technical scheme, the preparation method comprises the following steps of taking a bee pollen extract as a core, taking zein as a shell, adding the bee pollen extract to a zein solution, performing ultrasonic dissolving, and performing dispersing so as to obtain a zein-bee pollen extract solution; and then performing granulation by an electrostatic spraying method so as to obtain the zein-bee pollen extract microcapsules. Through the preparation method disclosed by the invention, the problems that in the prior art, effective components cannot be released in the intestines and the stomach, prepared microcapsules are unevenin granules, and the encapsulation efficiency is low are solved.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a preparation method of zein-bee pollen extract microcapsules. Background technique [0002] Natural bee pollen is rich in a variety of functional nutrients, known as the "all-round nutrition bank", scientific research shows that natural bee pollen has the effect of medical care. Bee pollen has a certain therapeutic effect on cardiovascular and cerebrovascular diseases, prostate cancer, prostatic hyperplasia, habitual constipation, etc., and has the effects of anti-cancer, lowering cholesterol, and enhancing immune function. The nutrients of bee pollen mainly include proteins, amino acids, phospholipids, vitamins, phenols, flavonoids, enzymes, trace elements, etc. Polyphenol flavonoids in bee pollen are widely present, and are considered to be multi-effect antioxidants, which have good ability to inhibit oxidase activity, scavenge free radicals and complex metal ions. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L21/20A23L29/00A23L33/00A23P10/20A23L5/00
CPCA23L21/20A23L29/045A23L33/00A23P10/20A23L5/00A23L5/51A23V2002/00A23V2200/30A23V2250/5482A23V2250/204A23V2200/14A23V2300/14A23V2300/24
Inventor 程妮王悦曹炜吕新刚高慧
Owner NORTHWEST UNIV(CN)
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