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Method for quickly dehydrating and drying instant rice

A technology of rapid dehydration and drying method, applied in the fields of application, food preparation, food science, etc., can solve the problems of high cost, unsuitable for industrial production of ordinary food, etc., and achieve the effect of low cost

Inactive Publication Date: 2012-10-24
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of vacuum freeze-drying is extremely high, it is only suitable for laboratory research or for the production of more expensive biological products, not suitable for industrial production of ordinary food

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The quick dehydration and drying method of instant rice of the present embodiment comprises the following steps:

[0018] (1) Cleaning and soaking of raw rice: After cleaning the japonica rice, soak it in water for 1 hour to make the rice fully absorb water;

[0019] (2) Cooking: Take out the soaked rice and drain the water; then add water equivalent to 1.5 times the weight of the raw rice to the drained rice, and cook at 105°C for 30 minutes;

[0020] (3) Cooling and dispersing rice grains: the rice is quickly cooled to room temperature by means of cold air cooling, and then the rice is stirred to disperse the rice grains, and the diameter of the dispersed rice balls is ≤ 2 cm;

[0021] (4) Vacuum low-temperature frying: First, preheat the frying oil in the vacuum fryer to 105°C, then put the rice treated in step (3) into the frying basket of the vacuum fryer, and finally put Put the frying basket into the frying bin and close the door. The vacuum frying time is 20 mi...

Embodiment 2

[0026] The quick dehydration and drying method of instant rice of the present embodiment comprises the following steps:

[0027] (1) Cleaning and soaking of raw rice: mix japonica rice and glutinous rice evenly according to the mass ratio of 7:3, clean it, and then soak it in water for 2 hours to make the rice fully absorb water;

[0028] (2) Cooking: Take out the soaked rice and drain the water; then add water equivalent to 1.2 times the weight of the raw rice to the drained rice, and cook at 102°C for 25 minutes;

[0029] (3) Cooling and dispersing rice grains: quickly cool the rice to room temperature by pouring cold boiled water, then drain the water, stir the rice to disperse the rice grains, and the diameter of the dispersed rice balls is ≤ 2 cm;

[0030] (4) Vacuum low-temperature frying: First, preheat the frying oil in the vacuum fryer to 100°C, then put the rice treated in step (3) into the frying basket of the vacuum fryer, and finally put Put the frying basket int...

Embodiment 3

[0035] The quick dehydration and drying method of instant rice of the present embodiment comprises the following steps:

[0036] (1) Cleaning and soaking of raw rice: Mix indica rice and glutinous rice evenly in a mass ratio of 6:4, clean them, and then soak them in water for 1.5 hours to make the rice grains fully absorb water;

[0037] (2) Cooking: Take out the soaked rice and drain the water; then add water equivalent to 1.8 times the weight of the raw rice to the drained rice, and cook at 100°C for 27 minutes;

[0038] (3) Cooling and dispersing rice grains: the steamed rice is naturally cooled to room temperature, then the rice is stirred to disperse the rice grains, and the diameter of the dispersed rice balls is ≤ 2 cm;

[0039] (4) Vacuum low-temperature frying: First, preheat the frying oil in the vacuum fryer to 102°C, then put the rice treated in step (3) into the frying basket of the vacuum fryer, and finally put Put the frying basket into the frying bin and close...

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PUM

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Abstract

The invention provides a method for quickly dehydrating and drying instant rice. The method comprises the following steps of: (1) washing and soaking raw rice; (2) cooking; (3) cooling and dispersing rice grains; (4) frying at low temperature in vacuum; (5) removing oil; and (6) cooling and packaging. The method has the following beneficial effects: the dehydrated rice prepared by the method has high rehydration speed, high rehydration ratio and low required cost; and the method is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for quick dehydration and drying of instant rice, in particular to a method for quick dehydration of instant rice by adopting vacuum low-temperature frying technology. Background technique [0002] Instant rice is the second largest staple food after instant noodles, and can be divided into two categories: dehydrated rice and non-dehydrated rice. Non-dehydrated rice is also called instant rice or soft rice. The moisture content is generally around 60%. Storage under this moisture content condition can easily lead to starch aging, affect the taste of rice, and make it difficult to digest and absorb. In addition, the high water content is also prone to the breeding of microorganisms, so the shelf life of non-dehydrated rice is generally short, and the longest time is only 6 months. The best way to heat non-dehydrated rice before eating is microwave heating. Heating methods such as boiling water soaking and self-heating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/182A23L7/196
Inventor 王青云林亲录吴跃杨涛梁盈吴伟李丽辉肖华西田蔚
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY