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Construction method of nutrient carrying system based on nano-food

A construction method and nutrient technology, applied in the field of food processing, can solve problems such as difficulty in consumer acceptance, processing difficulty, cost and technical limitations

Active Publication Date: 2011-11-02
杭州纳福载运科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is necessary to ensure that its concentration is large enough, the amount added will be very large, and the preparation of a large amount of micelles to carry nutrients is also greatly limited by cost and technology
[0006] To develop a new carrier system, it is necessary to overcome the difficulties of carrier preparation, processing, and consumer acceptance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Using nano-soybean meal to carry β-carotene.

[0023] Mixing and adsorption: The nano-soybean meal with a peak particle size of 90nm and more than 95% of the particle diameter of the nano-soybean meal below 140nm is used as the carrier. 26g of nano-soybean meal (dissolved in 100mL, pH11 buffer system, cationic strength 0.7mol / L) and 6g of β-carotene (dissolved in ethanol, concentration 0.5g / mL) were stirred rapidly for 25 minutes and mixed evenly.

[0024] Preparation of nano-food clusters: heat the solution to 50°C, keep it warm for 30 minutes, and then slowly stir the solution system for 4 hours.

[0025] Packaging and storage: The solution system is relatively stable, and there will be no obvious changes in a short period of time with a cover at room temperature. The solution system is vacuum-packed after being spray-dried and granulated, stored at room temperature or low temperature, and has a shelf life of more than 3 months.

[0026] Take 1mL of the a...

Embodiment 2

[0027] Example 2: Using nanometer flour particles to carry vitamin E.

[0028] Mixing and adsorption: Take 5g of nano-flour particles with a peak diameter of 300nm (dissolved in 30ml of 0.05mol / L acetic acid solution), stir evenly, and add 0.2g of vitamin E (containing a small amount of sucrose ester) dissolved in 3mL of refined soybean oil drop by drop , stir vigorously to mix.

[0029] Preparation of nano-food clusters: Add about 20ml of 0.05mol / L acetic acid solution until the solution system is relatively uniform and transparent, adjust the pH value of the solution system to 5, and after standing for 24 hours, nano-food cluster particles are formed, with a peak diameter around 1340nm.

[0030] Packaging and storage: The solution does not appear obvious precipitation after standing for a short period of time. The solution system can be vacuum packed after spray drying and granulation. Stored at room temperature or low temperature, the shelf life is more than 3 months.

Embodiment 3

[0031] Example 3: Using nano-bone powder to carry vitamin D.

[0032] Mixing and adsorption: Take 1g of nano-bone powder with a peak diameter of 400nm (concentration up to 0.5%, pH9), directly add 0.25g of vitamin D powder and mix well.

[0033] Preparation of nano-food clusters: heat to 85°C, cool down to 40°C after 5 minutes, and the solution system reaches an equilibrium state after standing for 1 hour.

[0034] Packaging and storage: After cooling to room temperature for a short period of time, the solution does not appear obvious precipitation. The solution system can be vacuum packed after spray drying and granulation. Stored at room temperature or low temperature, the shelf life is more than 3 months.

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Abstract

The invention discloses a construction method of a nutrient carrying system based on nano-food. The construction method is characterized in that (1) one or more nutrients and a nano-food are mixed uniformly to form a mixture, wherein a mass ratio of the one or more nutrients and the nano-food is 1: (4 to 200); a lipid content of the nano-food is less than 12%; and a peak value of a particle size distribution curve of the nano-food is less than 400 nm; (2) if the above mixture is in a solution system, a solution concentration is adjusted to a concentration of 0.5 to 55% by nano-food weight; a solution pH is adjusted to a pH of 2.2 to 13; an ion strength converted into a sodium ion concentration is in a range of 0.001 to 5 mol / L; and at a temperature of 0 to 85 DEG C, an ultrasonic vibration process adopting a power density of 0 to 65 W / cm <2> is carried out and nano-food clusters are obtained after a gathering process for 1 to 48 hours; or if the above mixture is in a solid state, nano-food clusters are obtained through a gathering process lasting for 2 to 80 hours under the conditions of a pressure intensity controlled in a range of 0.05 to 4 MPa, a temperature controlled in a range of 0 to 230 DEG C and a relative humidity controlled in a range of 0 to 100%; and (3) the nano-food clusters are packaged in a vacuum and then are stored at normal temperature or low temperature. Through the construction method, nutrients are wrapped in nano-food clusters thus nutrient carrying is realized; a stability of carried nutrients is improved and nutrients carried by nano-food clusters can be stored in liquid form or solid form thus the degradation of nutrients can be reduced or even avoided and conditions of after processing are relaxed; and a bioavailability of nutrients carried by nano-food clusters is improved greatly.

Description

technical field [0001] The invention belongs to the field of food processing. Background technique [0002] The study of nano-carrier system is one of the research hotspots in nanoscience. The study of oral nano-drug delivery system has brought great inspiration to food science to use nano-carriers to transport water-insoluble nutrients and promote their oral absorption. Nanocarriers can carry water-insoluble nutrients, improve their biological activity, and promote the absorption and utilization of these nutrients. For example, using chitosan-coated nanoliposomes to carry vitamin E and vitamin C, using casein micelles to carry vitamin D, etc. [0003] The nano-carrier system carries nutrients, which is restricted by the type of carrier. At present, there are many nano-carrier systems commonly used, mainly including inorganic nanoparticles (such as silicon particles, carbon nanotubes), polymer nanoparticles (such as polystyrene spheres), nanocapsules, liposomes, lipid mice...

Claims

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Application Information

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IPC IPC(8): A23L1/29A23L33/00
Inventor 吴志华陈红兵余勃杨安树李欣
Owner 杭州纳福载运科技有限责任公司
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