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Fucoxanthin composite nanofiber and preparation method thereof

A technology of composite nanofiber and fucoxanthin, which is applied in the field of food chemistry, can solve the problems of low oral utilization, poor stability, and limited application, and achieve the effects of low preparation cost, maintaining activity, and simple process

Inactive Publication Date: 2021-07-16
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a composite nanofiber of fucoxanthin to solve the problems of limited application due to water insolubility, poor stability and low oral utilization

Method used

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  • Fucoxanthin composite nanofiber and preparation method thereof
  • Fucoxanthin composite nanofiber and preparation method thereof
  • Fucoxanthin composite nanofiber and preparation method thereof

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preparation example Construction

[0029] The preparation method of the fucoxanthin-cyclodextrin / polyvinylpyrrolidone nanofiber provided by the invention comprises:

[0030] Step 1: Dissolve the cyclodextrin powder in water, dissolve the fucoxanthin in the organic reagent, stir at room temperature at a speed of 200rpm / min for 4h until uniform, and then stir the fucoxanthin at a speed of 200rpm / min The plain organic solvent was added dropwise into the cyclodextrin aqueous solution at a rate of 1-5ml / min and mixed thoroughly for 2 hours. A fucoxanthin-cyclodextrin solution is obtained by linking the hydrophobic inner cavity of the cyclodextrin with the fucoxanthin. Wherein the molar ratio of fucoxanthin organic solution and cyclodextrin aqueous solution is 1: (1~2), the mass volume fraction of salicoxanthin in solvent is 4~20%; The organic solvent that fucoxanthin is dissolved in is none Water ethanol, edible glycerin and other polar organic solvents.

[0031] Step 2: Weigh polyvinylpyrrolidone and add it to th...

Embodiment 1

[0034] Weigh 0.5g of cyclodextrin and dissolve in water, weigh 0.42g of fucoxanthin and dissolve in absolute ethanol, and stir at 200rpm / min at room temperature for 4h respectively. Then, under the state of magnetic stirring at the same rotational speed, the fucoxanthin organic solvent was added dropwise to the cyclodextrin aqueous solution at a speed of 1.5 ml / min and mixed thoroughly for 2 hours. Add 0.5 g of polyvinylpyrrolidone to the mixture, and stir at room temperature at a speed of 200 rpm / min until it is completely dissolved.

[0035] Inhale the prepared electrospinning solution into a 1ml syringe, select a 25G injection needle, connect it to the positive electrode of the high-voltage power supply, use aluminum foil as the receiving plane to connect the negative electrode, and use a syringe pump to control the injection flow rate of the electrospinning solution. Turn on the high-voltage power supply, adjust the flow rate of the syringe to 0.3ml / h, the receiving distan...

Embodiment 2

[0037] Weigh 0.75g of cyclodextrin and dissolve in water, weigh 0.16g of fucoxanthin and dissolve in absolute ethanol, and stir at 200rpm / min at room temperature for 4h respectively. Then, under the state of magnetic stirring at the same rotational speed, the fucoxanthin organic solvent was added dropwise to the cyclodextrin aqueous solution at a speed of 3 ml / min and mixed thoroughly for 2 hours. Add 0.5 g of polyvinylpyrrolidone to the mixture, and stir at room temperature at a speed of 200 rpm / min until it is completely dissolved.

[0038] Inhale the prepared electrospinning solution into a 1ml syringe, select a 25G injection needle, connect it to the positive electrode of the high-voltage power supply, use aluminum foil as the receiving plane to connect the negative electrode, and use a syringe pump to control the injection flow rate of the electrospinning solution. Turn on the high-voltage power supply, adjust the flow rate of the syringe to 0.6ml / h, the receiving distanc...

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Abstract

The invention provides a fucoxanthin composite nanofiber and a preparation method thereof. The preparation method comprises the following steps that S1, fucoxanthin and cyclodextrin are correspondingly dissolved in an edible polar organic solvent to prepare a fucoxanthin mixed dispersion system; step 2, polyvinylpyrrolidone is added into the fucoxanthin mixed dispersion system to obtain a spinning solution, and defoaming is carried out; and step 3, wet electrospinning is carried out by using an electrostatic spinning process, and the fucoxanthin composite nanofiber is collected. The fucoxanthin composite nanofiber changes the limitation that fucoxanthin is insoluble in water while retaining the activity of fucoxanthin, and the thermal stability of fucoxanthin is improved; according to the preparation method, edible solvents are adopted in fiber preparation, any other harmful solvents and diluents are not used, and the method is easy to collect and use and environmentally friendly; and the whole preparation process is simple in technology, low in device requirement, low in energy consumption in the process and low in cost, and can be widely applied to rapid dissolution of fucoxanthin or large-scale application in food industry.

Description

technical field [0001] The invention relates to the field of food chemistry, and more specifically relates to a nanofiber capable of improving the hydrophilicity and thermal stability of fucoxanthin and a preparation method thereof. Background technique [0002] Fucoxanthin, also known as fucoxanthin, is the most abundant functional carotenoid in nature, accounting for more than 10% of the total amount of about 700 natural carotenoids. Initially, fucoxanthin was only used as a food coloring agent, and later studies found that fucoxanthin has a good antioxidant effect superior to vitamin E. In addition, a large number of studies at home and abroad in the past have shown that thanks to its special structures such as propadiene and alkylene oxide, fucoxanthin has various biological properties, including anti-tumor, anti-inflammatory, anti-oxidation, weight loss, etc. Therefore, it has become one of the main hotspots in the research and development of marine drugs, and has a ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/18D01F8/10D01F1/10
CPCD01F8/18D01F8/10D01F1/10
Inventor 苏文涛李佳璇谭明乾
Owner DALIAN POLYTECHNIC UNIVERSITY
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