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Method for preparing nutritional microspheres

A technology of microspheres and nutrition, applied in the field of food processing, can solve problems such as affecting absorption and achieve the effect of improving the retention rate

Inactive Publication Date: 2015-03-04
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Iron-enriched rice produced by direct mixing and extrusion will cause a large amount of ferrous iron to be oxidized to ferric iron due to high temperature, high pressure and high shear during processing. Not only that, single ferrous iron-fortified rice will It is also susceptible to the oxidation of oxygen into ferric iron, which affects its absorption in the body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The invention will be further illustrated by the following examples.

[0020] Example.

[0021] Take 20g of porous starch, soak in 1L of 1mg / ml ferrous sulfate solution based on iron element concentration, add 50mg of vitamin A, and stir at 25°C for 4h. The solution containing porous starch and nutrition enhancer was centrifuged at 6000 rpm, and the precipitate was dried under reduced pressure at 60°C. Then take 15g of porous starch containing nutritional enhancer, put it in 500ml, 5% starch paste, and stir at 60°C for 4h. Subsequently, the above-mentioned starch paste is spray-dried in a small spray tower, and the air inlet temperature and outlet air temperature are controlled at 60°C to obtain nutritional microspheres. After the nutrient microspheres are dried and cooled, they are vacuum-packed immediately. The iron content in the prepared nutritional microspheres is 13.65mg / g, Fe 2+ The content is 12.28mg / g, and the content of vitamin A is 450μg / kg.

[0022] Wei...

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PUM

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Abstract

The invention provides a method for preparing nutritional microspheres. The method comprises the following steps of adsorbing, drying, backfilling, drying, cooling and packaging and the like. A nutrition enhancer is adsorbed by porous starch and covered by starch paste so that the aim that the loss of the nutrition enhancer with the unstable property in processing and storing processes is reduced is realized. The porous starch is in a hollow honeycomb-shaped particle structure so that a semi-closed environment can be provided for nutrients; and a fully-closed environment is provided for the nutrition enhancer by the backfilling of the starch paste. The fully-closed environment can be used for reducing the contact between easily-oxidized nutrients and oxygen, and the loss caused by oxidization is reduced; and the degradation effect on the nutrition enhancer by heat and shearing effects can be hindered. According to the method, the retention rate of the nutrition enhancer in the processing and storing processes can be improved.

Description

technical field [0001] The invention belongs to the technical field of food processing. Background technique [0002] At present, there are mainly powder fortification method, soaking method, surface coating method and extrusion method for the production process of rice nutrition strengthening at home and abroad. [0003] The process operation of powder strengthening method, immersion absorption method and surface coating method is complicated, requires a lot of equipment, high energy consumption, and large investment in plant construction. Moreover, the distribution of nutrients is uneven, and most of them are concentrated on the surface of the rice, which is easily lost during storage and washing. The stability of these nutritious rice products is poor, and the production cost is high, and the sales price is expensive, so its technology and products are not suitable for my country's national conditions, are difficult to be generally accepted by my country's consumers, and...

Claims

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Application Information

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IPC IPC(8): A23L1/10A23L1/302A23L1/303A23L1/304A23L1/305A23L33/16A23L33/175
CPCA23L33/15A23L29/30A23L33/155A23L33/16A23L33/175A23V2002/00
Inventor 罗舜菁林亲录梁盈刘成梅刘云飞
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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