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Preparation method of functional corn oil nano-emulsion containing monascus yellow pigment

A technology of monascus yellow pigment and nano-emulsion is applied in the field of preparation of functional corn oil nano-emulsion containing monascus yellow pigment, and can solve the problems of expensive operation equipment, incompatibility, unknown safety, etc.

Pending Publication Date: 2022-03-04
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high hydrophobicity and incompatibility, the addition of corn oil to the final aqueous food system becomes the biggest challenge, which has a great impact on the proper absorption of corn oil as a food material to balance diet and human nutrition
[0005] As we all know, monascus yellow pigment is a common nutrient or bioactive substance, which is easily degraded by temperature, light and oxygen during food processing, packaging and storage, so monascus yellow pigment cannot be stored stably
In addition, its water solubility is weak, which greatly limits the application of monascus yellow pigment in water-based food
In order to overcome these challenges, several methods such as embedding, antioxidant introduction, and chemical modification have been proposed, but there are defects such as relatively expensive operating equipment, the inability to solve the above two problems at the same time, and the chemical reaction mechanism is still unclear, and the safety is unknown.

Method used

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  • Preparation method of functional corn oil nano-emulsion containing monascus yellow pigment
  • Preparation method of functional corn oil nano-emulsion containing monascus yellow pigment
  • Preparation method of functional corn oil nano-emulsion containing monascus yellow pigment

Examples

Experimental program
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Effect test

Embodiment example 1

[0021] Preparation of emulsifier: 0.30 g of Tween 60 and 0.50 g of Tween 80 were mixed to obtain 0.80 g of emulsifier.

[0022] Mix 0.10g of corn oil and 0.80g of emulsifier to prepare a mixture of emulsifier and oil, then add 0.02g of monascus yellow and stir at 30°C at 600rpm / min for 0.5 hours; then add 9.08g of deionized water dropwise Add it into the above mixing system, and then stir at 30° C. at 600 rpm / min for 1 hour to obtain a functional corn oil nanoemulsion containing monascus yellow pigment.

example 2

[0024] Preparation of emulsifier: 0.40 g of Tween 60 and 0.40 g of Tween 80 were mixed to obtain 0.80 g of emulsifier.

[0025] Mix 0.10g of corn oil and 0.80g of emulsifier to prepare a mixture of emulsifier and oil, then add 0.02g of monascus yellow and stir at 30°C at 600rpm / min for 0.5 hours; then add 9.08g of deionized water dropwise Add it into the above mixing system, and then stir at 30° C. at 600 rpm / min for 1 hour to obtain a functional corn oil nanoemulsion containing monascus yellow pigment.

example 3

[0027] Preparation of emulsifier: 0.50 g of Tween 60 and 0.30 g of Tween 80 were mixed to obtain 0.80 g of emulsifier.

[0028] Mix 0.10g of corn oil and 0.80g of emulsifier to prepare a mixture of emulsifier and oil, then add 0.02g of monascus yellow and stir at 30°C at 600rpm / min for 0.5 hours; then add 9.08g of deionized water dropwise Add it into the above mixing system, and then stir at 30° C. at 600 rpm / min for 1 hour to obtain a functional corn oil nanoemulsion containing monascus yellow pigment.

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Abstract

The invention provides a preparation method of a functional corn oil nano-emulsion containing monascus yellow pigment. Petroleum ether is adopted to extract the monascus yellow pigment in the red yeast rice powder, Tween 60 and Tween 80 are selected as emulsifiers to emulsify the monascus yellow pigment, and the monascus yellow pigment nano-emulsion is obtained by a phase transition method. The average particle size of the nano-emulsion prepared by the invention is in a range of 10-15nm, and the nano-emulsion presents a transparent yellow liquid appearance. The problems that water solubility of current corn oil and monascus yellow pigment is difficult to achieve, the corn oil is single in function, and the monascus yellow pigment is poor in stability are solved. The method is uniform in particle size distribution, simple in process, easy to operate and good in reproducibility, raw materials used by the product are wide, easy to obtain and low in price, energy is saved, and the product has certain nutritional value and bright color. In addition, the addition of the monascus yellow pigment is beneficial to the oxidation resistance of the corn oil and the digestion of the corn oil, and the corn oil can be used for functional foods, beverages and other products.

Description

Technical field: [0001] The invention belongs to the technical field of food processing and relates to a method for preparing a functional corn oil nanoemulsion containing monascus yellow pigment. Using Tween 60 and Tween 80 as a surfactant, mixed with corn oil as the oil phase, embedding monascus yellow pigment, and finally prepared a functional corn oil nanoemulsion containing monascus yellow pigment, which has high Monascus yellow pigment water-soluble, monascus yellow pigment nanoemulsion and monascus yellow pigment all have high stability, improve the antioxidant capacity of corn oil and improve the digestibility of corn oil. [0002] technical background: [0003] With the improvement of people's health awareness, chemical synthetic substances are gradually eliminated, and natural substances have become the focus of attention. Monascus pigment, one of the natural pigments, is a secondary metabolite of polyketides and a functional active substance. It has been used as f...

Claims

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Application Information

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IPC IPC(8): A23L5/46A23L29/10A23L33/115
CPCA23L5/46A23L29/10A23L33/115A23V2002/00A23V2200/04A23V2200/222A23V2250/18A23V2200/30
Inventor 孙长霞李可欣李强
Owner BEIJING FORESTRY UNIVERSITY