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Production method of calcium-rich fortified rice by extrusion method

An extrusion method and rice technology, applied in the field of calcium-enriched fortified rice, can solve the problems of high cost and large loss of nutrients

Inactive Publication Date: 2018-10-16
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large loss of nutrients, incomplete impregnation, and high cost, the impregnation method and surface coating method are rarely used in the intensive production of rice at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific implementation method 1: First, crush and screen a certain amount of broken japonica rice, add 1.0%-5.0% calcium acetate fortifier, mix thoroughly, and then adjust the water content to reach 16%-24%; followed by extrusion treatment , put the tempered broken rice into the extruder, adjust the barrel temperature of the extruder to 80°C-120°C, and the screw speed to 60rpm-100rpm; Aged for about 3 hours under the condition of 70%. The aged strengthened rice is sent into a hot-air drying oven, dried for 40 minutes at 45°C, and then cooled and packaged.

specific Embodiment approach 2

[0008] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the addition of the calcium acetate fortifier is adjusted to 2.0%-4.0%, and extrusion is carried out. Other steps are the same as Embodiment 1.

specific Embodiment approach 3

[0009] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the moisture content is adjusted to 18%-22%, and extrusion is performed. Other steps are the same as Embodiment 1.

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PUM

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Abstract

The invention provides a production method of calcium-rich fortified rice by an extrusion method. The extrusion method is high-temperature short-time processing technology, and is widely used in the food industry. The production method is to use crushed japonica rice as the raw material and calcium acetate as the fortifying agent and recombine the crushed japonica rice by the extrusion method to obtain fortified rice with good mouthfeel and property. The production method of the calcium-rich fortified rice includes the following optimum process parameters obtained through researches: additionamount of the calcium acetate: 2.0%; machine barrel temperature: 100 DEG C, screw rotation speed: 85 rpm; water content: 20.0%; hardness, elasticity, adhesion and chewiness of the calcium-rich fortified (similar to texture characteristics of ordinary japonica rice): 1364.86 g, 0.67 mm, 0.64 mj and 851.51 mj, respectively; and calcium content of the calcium-rich fortified rice: 108.2 mg / 100g. The invention optimizes extrusion process parameters for producing the calcium-rich fortified rice, and cooked rice can become good in mouthdeel and appearance and high in calcium content (18.02 mg / 100g) when the calcium-rich fortified rice is added into japonica rice with a ratio of 1:12, which meets the need of the human body for calcium.

Description

technical field [0001] The invention relates to the field of agricultural product processing, in particular to a method for producing calcium-enriched fortified rice by extrusion. Background technique [0002] As the most important staple food in people's daily life, rice is rich in nutrients and can provide the human body with the energy it needs daily. However, the protein content in rice is low and the proportion of amino acids is unreasonable. With the improvement of rice processing level, the processing precision of rice is getting higher and higher. In the process of whitening and polishing, many valuable nutrients are also lost. getting more serious. [0003] At present, the main rice fortification methods include immersion method, surface coating method and extrusion method. Due to the large loss of nutrients, incomplete impregnation, and high cost, the impregnation method and surface coating method are rarely used in the intensive production of rice at present. T...

Claims

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Application Information

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IPC IPC(8): A23L7/143A23L33/16
CPCA23V2002/00A23L7/143A23L33/16A23V2200/30A23V2250/1578
Inventor 于殿宇王彤王旭王玉琦韩富江江连洲王立琦
Owner NORTHEAST AGRICULTURAL UNIVERSITY