China Grain Network The broken rice produced during rice processing is usually used as feed and its economic value is 1/3 to 1/2 lower than that of whole grains. These broken rice are ground into rice flour to make high-protein rice flour, and then processed into various rice products. The economic value of broken rice can be greatly improved. Infrared Vein Finder,High Quality Infrared Vein Finder,Infrared Vein Finder Details, CN Wuxi Biomedical Technology Co.,Ltd , https://www.wxbiomedical.com
1 The water extract of processed beverage broken rice is rich in nutrients, and it can be processed to obtain beverages, which has obvious effects of making the skin smooth and delicate, and it also has certain curative effect on specific skin inflammation. Broken rice beverage is a beauty drink with good prospects.
The processing technology of broken rice beverages is as follows: broken rice → pulverization → cooking with water → cooling to the required temperature → adding α-amylase, enzymolysis, liquefaction → inactivating enzymes → separating rice juice → blending (additives) → homogenizing → cans Packing → Sterilization → Cooling → Rice Juice Drink.
1.1 Crushing In order to increase the surface area, speed up the enzymatic reaction, increase the juice extraction rate, and crush the rice or rice through a 20-mesh sieve.
1.2 The aim of cooking and cooking is to fully gelatinize the rice starch, destroy the starch granules, stretch the starch molecules, facilitate the enzymatic reaction, and accelerate the liquefaction rate.
1.3 Liquefaction Degradation of starch by alpha-amylase increases the soluble content and improves the extraction rate. This process also has a great influence on product quality. The enzymatic reaction requires heat sterilization to inactivate the alpha-amylase.
1.4 Separation The rice juice is separated from the rice residue by filtration or centrifugation. After rice juice is made, it can be sold directly after boiling. The rice juice product has natural rice fragrance, sweet taste, and pleasant taste. This is the natural rice juice drink with the beauty effect that Japan respects.
In addition, according to different taste requirements can also be seasoned with ingredients, or according to the needs of yin and yang add nutritional fortifier, canned to obtain a better shelf life of canned rice juice beverage.
2 The protein content of high-protein rice flour high protein rice flour is 27.2% to 24.4%, the starch content is 33.8 to 35.7%, and sugar is 23.8% to 24.4%. In addition, most of the 8 essential amino acids in the high protein powder exceed the amino acid content standards set by the UN FAO. The surface structure of high protein rice flour is very different from ordinary rice. Foods made from high protein rice flour are more easily absorbed and used by infants and meet the requirements of the World Health Organization.
Dry rice flour or wet grinding method is generally used to grind broken rice into rice flour, rice flour and deionized water are adjusted to rice flour slurry, and the pH is adjusted to 6.5, then liquefied by α-amylase, and the rice flour is decomposed after liquefaction. The slurry was centrifuged, and then the filter residue was dried by a spray drying method and a drum drying method to produce a high protein rice flour.
3 Maltitol Maltitol Maltitol is a disaccharide alcohol prepared by the hydrogenation of maltose. Its sweetness is almost exactly the same as that of sucrose, and its sweetness is pure. In the 1970s abroad, maltitol was produced and sold, and its mass production in China has just begun.
Broken rice maltitol process is as follows: broken rice → panning → soaking → refining → milk regulation → liquefaction → sterilization → filtration → decolorization → filter pressing → ion exchange → hydrogenation → precipitation filtration → decolorization → ion exchange → concentration → medium And → maltitol.
3.1 Soaking 1000kg broken rice is loaded into the condole, soaked in water, panned, and ventilated with air compressor for several minutes. After the washing is completed, the rice is soaked for 2 to 3 hours, so that the hand feels soft and fragile, and the slurry and the water-soluble impurities are substantially removed to begin refining.
3.2 Grinding, milking refining The key to master the fineness and concentration, too fine is not conducive to the increase of concentration, too thick is difficult to liquefaction, generally pass through 60 mesh/25.4mm appropriate. Dissolve 0.5kg of calcium chloride into the slurry tank, stir, adjust the pH with soda water, and add high pressure α-amylase as required by the process.
3.3 Liquefaction Liquefaction is a key process for the enzymatic preparation of maltitol. Starch exists in the form of particles and has a crystalline structure. This must be heated to allow it to swell, gelatinize, and destroy its crystalline structure. The main pulp is kept liquefied for a certain period of time after being sprayed to make it fully liquefied. The appearance of the liquefied material requires the separation of the water slag, that is, the liquid is clear, transparent, and the viscosity is small when the sample is dripped. Then, the temperature was raised to 100° C. and the enzyme was deactivated. The purpose of liquefaction was to initially hydrolyze rice starch to dextrin, lower the viscosity, and promote partial protein coagulation.
3.4 Saccharification The liquefied pulp is cooled to about 60°C, iso-amylase and pullulanase (the latter is added first) are added, stirred, and incubated for tens of hours. After 24 hours of saccharification, the DE value of the liquefied pulp should be constantly detected to be almost constant. Saccharification is over. Then warm up and inactivate enzymes.
3.5 Pressure Filtration The saccharification solution is self-flowing (height is highly compatible) with the use of a disparity, and then the protein is removed.
3.6 Decolorization Filtration Firstly, the saccharification solution is heated to 60° C., 1% by weight of activated carbon is added to the mixture, and the mixture is heated and stirred for several ten minutes. After standing, it is filtered.
3.7 Refined Ion Exchange The ion exchange resin removes all forms of ions and the finished product is packed in drums. Ji County Agricultural Information Center