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Edible nano-scale beta-carotene emulsion free from high pressure homogenization and preparation method thereof

A carotene, high pressure homogenization technology, applied in food preparation, food science, application and other directions, can solve the problems of increased processing cost, high price, limitation of nano-emulsion, etc., to save production cost, simplify process, enrich Effects of production methods

Active Publication Date: 2012-06-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the price of high-pressure homogenization equipment is relatively high, which greatly increases the processing cost and limits the promotion of traditional nanoemulsion processing technology.
In addition, the emulsifiers used are mainly small-molecule surfactants, and the addition amount of small-molecule surfactants in food systems is strictly limited, which greatly restricts the application of nanoemulsions in food systems.

Method used

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  • Edible nano-scale beta-carotene emulsion free from high pressure homogenization and preparation method thereof
  • Edible nano-scale beta-carotene emulsion free from high pressure homogenization and preparation method thereof
  • Edible nano-scale beta-carotene emulsion free from high pressure homogenization and preparation method thereof

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Effect test

Embodiment 1

[0038] Select ethyl acetate as the solvent of β-carotene, weigh 5g of β-carotene and dissolve it in ethyl acetate, its mass concentration in the organic solvent is 0.5%, stir magnetically to make β-carotene dissolve completely to obtain oil phase; the emulsifier is 9g of whey protein isolate, 0.02-0.05g of potassium sorbate is added, and 90g of double distilled water is used to prepare the water phase. The oil phase and the water phase are mixed, dispersed at a high speed, the organic solvent is evaporated by rotary evaporation, and the required dose is divided into brown glass bottles to obtain the nano-scale β-carotene emulsion of the present invention. After the nano-scale β-carotene emulsion was prepared, the storage stability of the nano-scale β-carotene emulsion was further investigated. It was stored at room temperature for one month, and the nano-emulsion did not appear flocculation or floating phenomenon. The dispersion instrument was used to study the particle size o...

Embodiment 2

[0040] The concentration of β-carotene (3g) in the organic solvent ethyl acetate is 0.3%, and the β-carotene is completely dissolved by magnetic stirring to obtain an oil phase; the emulsifier is whey protein isolate (5g), and potassium sorbate 0.02 -0.05g, use 90g of double-distilled water to prepare the water phase, mix the oil phase and the water phase, disperse at high speed, and rotary evaporate the organic solvent to obtain the nano-scale β-carotene emulsion of the present invention.

Embodiment 3

[0042]The concentration of β-carotene (1g) in the organic solvent ethyl acetate is 0.1%. At 65°C, stir magnetically to completely dissolve the β-carotene to obtain an oil phase; the emulsifier is whey protein isolate (8g), Add 0.02-0.05g of potassium sorbate, prepare the water phase with 95g of double distilled water, mix the oil phase and the water phase, disperse at high speed, evaporate the organic solvent by rotary evaporation, and concentrate the nano-sized β-carotene emulsion at 50°C Liquid, that is, the nano-scale β-carotene emulsion of the present invention is obtained.

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Abstract

The invention relates to an edible nano-scale beta-carotene emulsion free from high pressure homogenization and a preparation method thereof and belongs to the technical field of the preparation of a natural pigment nano-scale emulsion. The nano-scale beta-carotene emulsion provided by the invention is a nano-scale beta-carotene emulsion system which is composed of beta-carotene, cosolvent, protein emulsifying agent, water, and the like. According to the preparation method, the traditional technology for preparing the nano-scale emulsion is optimized, the preparation process is simple, the high pressure homogenization is unnecessary and the equipment demand during the preparation process is reduced. The product provided by the invention has the advantages that the water solubility of the beta-carotene is greatly improved, the stability of the beta-carotene is increased, the biologic use ratio is high, and the edible nano-scale beta-carotene emulsion can be widely applied to a food system, particularly beverages, and especially the transparent functional beverages.

Description

technical field [0001] An edible nano-scale β-carotene emulsion without high-pressure homogenization and a preparation method thereof belong to the technical field of natural pigment nanoemulsion preparation. Background technique [0002] The molecular formula of β-carotene is: C 40 h 56 , with a molecular weight of 536.44, is a non-polar carotenoid containing two ring structures and 11 conjugated double bonds. It has antioxidant properties, is unstable, and is easily affected by light, oxygen, and heat, and is decomposed. Reduced activity. Its most basic constituent unit is isoprene. [0003] [0004] β-carotene structure [0005] β-carotene is the most potent vitamin A precursor and has two β-ionone ring structures. Therefore, in theory, one molecule of β-carotene can be split to form two molecules of vitamin A. Vitamin A can maintain normal human visual function, such as: prevent night blindness, prevent vision loss and so on. Moreover, the β-carotene in the hum...

Claims

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Application Information

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IPC IPC(8): A23L1/275A23L2/58A23L2/52A23L1/30
Inventor 钟芳李玥麻建国易江
Owner JIANGNAN UNIV
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