Free-elutriation and nutrient fortified rice and nutrients formula, liquid-fog coating method thereof and device for realizing method

Abstract

The invention discloses free-elutriation and nutrients fortified rice and a nutrient formula, a liquid-fog coating method thereof and a device for realizing the method, wherein, the nutrients fortified rice compounds with two layers of nutrients on the surface layers of the endosperm and embryo of free-elutriation rice grains, one layer of vitamin membrane comprises folic acid and nicotinic acid or is formed by mixing vitamin B1, folic acid and nicotinic acid, and the other layer of mineral nutrients membrane comprises glycine iron, sodium selenite and zinc sulfate or is formed by mixing glycine iron and zinc sulfate; the nutrients and the quantities of addition in rice / kg thereof are as follows: 3 to 5mg of vitamin B1, 1 to 3mg / of folic acid, 40 to 50mg of nicotinic acid, 24 to 48mg of glycine iron, 0.14 to 0.28 of sodium selenite, 20 to 40mg of zinc sulfate; the liquid-fog coating method is adopted to compound the nutrients on the surface layers of the endosperm and embryo of free-elutriation rice grains, thereby scientifically supplementing a plurality of nutrients loss in the process of processing rice, improving the processing quality, sanitary requirement and nutritional quality of rice.

Description

technical field [0001] The invention relates to a food, in particular to a washing-free nutritionally enhanced rice and its nutrient formula, a liquid mist coating method of the washing-free nutritionally enhanced rice and a device for realizing the method. Background technique [0002] Rice nutrition fortification has a history of nearly 70 years in foreign countries, and various technical conditions are mature. Various rice nutrition fortification products have a very important beneficial effect on improving and improving public nutrition and health. In recent years, my country has started technical research on rice nutritional fortification. At present, rice nutrition-fortified terminal products and product standards, process methods, nutrient formulas, production equipment, and related technologies that are suitable for industrial production and can ensure product quality and food hygiene and safety are still in the research stage, and the application of products and tec...

AI Technical Summary

Problems solved by technology

The disadvantages of this invention are: 1. What the rice strengthens is trace mineral nutrients, and the compound or mixing unit is very small, and the dissolution and mixing methods of calcium lactate and the like are not explained in detail.

By comparison, it can be seen that the content of calcium, selenium and iron in the mixed mineral nutrients of the invention product does not meet the national standards.

3. The process of washing rice will cause the loss of enhanced nutrients

[0004] Chinese Patent Publication No. CN2413514Y, on January 10, 2001, disclosed the invention of "Enhanced Rice with Systemic Nutrition", which is characterized in that the rice includes puffed micropores on the rice, and the dissolved and / or insoluble ingredients contained in the puffed micropores The superfine powder nutritional agent is realized by expanding the rice particles quantitatively to form expanded micropores, soaking the nutrient solution into the micropores and drying them, and then using pectin to penetrate into the surface of the rice to form a protective film. Spray glue paste and / or pectin etc. to form the outer protective film layer. Its disadvantages are: 1. The variety and content standard of the nutrient solution are not disclosed, so it is difficult to determine the nutritional quality of the product

After cooking, the puffed micropores will increase and expand, the rate of whole rice is low, and the rate of broken rice is high, which is difficult for consumers to accept

3. Although the outer layer of rice has a protective film, the process of washing rice will still cause the loss of added nutrients

The weak point that two formulas exist is: 1, vitamin B 2 The properties are orange-yellow, slightly smelly, slightly bitter, and the smell is very strong, which affects the sensory and taste of rice products

2. The mineral nutrient formula lacks the selenium element that most of the human body lacks and needs to be supplemented

3. The specific varieties of mineral elements are not specified in accordance with the requirements of relevant laws and regulations, because some varieties are prohibited from being added to rice or cereal products

The weak point that this method exists is: 1, secondary spraying dips in the nutrient solution process, does not provide the implementation mode of controlling rice fortified nutrient content, thus, is difficult to guarantee the stability of each monomer nutrient content index in rice

2. No washing process and sanitation requirements for rice are given, and the process of washing rice before cooking will inevitably result in the loss of added nutrients

3. The rice after spraying is dried naturally for 1 hour, which has low production efficiency and high cost, which is not conducive to industrial production

4. When the rice in the process is sprayed with nutrient solution in the spray cabin, it is difficult to achieve the effect of slow drying

The disadvantages of this method are: 1. Quantitatively putting rice and nutrient solution into one or more mixing devices is not suitable for industrial production. Manual quantification may lead to unstable addition of nutrient solution and affect the stability of nutrient content indicators.

2. The stirring (gelatinization) process at 50°C for 5 to 10 minutes changes the natural structure and taste of rice, which is difficult for consumers to accept

3. There is no rice washing-free process and hygiene requirements, and the rice washing process will inevitably result in the loss of added nutrients

The disadvantage of the spraying device for rice nutritional enhancement described in this method is that a spraying device can realize the three functional requirements of nutrient solution spraying, slow drying, and soaking solution for rice under the conditions of the work flow, and the result may not be good. ; Because the water-containing nutrient solution produces water droplet atomization and sprays rice through gas pressure, the spraying device is rotating non-stop, and the moisture content of rice increases and sticks to each other after being sprayed by liquid mist non-stop in this device, thus, it is difficult Process requirements for slow drying and soaking solution

The atomizing film applicator of the device is mainly composed of a circular box, two inlet and outlet flanges, a rectifier, a decimeter, three fan nozzles, a 360° conical nozzle and a receiving hopper. Disadvantages: 1. The rice falls directly from the feed port to the upper end of the cone-shaped metal decimeter, which is easy to cause the whole rice to be broken and increase the broken rice rate.

2. It is difficult for a metal cone decimeter to disperse the rice hanging down in the bin body evenly. The distance from the atomized coating film to the discharge port is short, and the rice scattered by the decimeter immediately passes through the atomized coating film and Falling into the discharge port, it is difficult for the grains of rice to receive a uniform atomized coating, which can lead to unstable nutrient content indicators in the product

3. The upper feed port and the lower discharge port of the atomized coating film can easily cause 30% to 60% loss of nutrient liquid mist and gas, and it is difficult to ensure the uniformity of the rice nutrient film

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