Method and device for producing green purified rice and device

Abstract

The invention relates to a method for producing green purified rice. According to the method provided by the invention, the pressure is controlled below 30Mpa and the time is controlled over 30 minutes, and a dynamic extraction technology of carbon dioxide supercritical fluid is utilized. The carbon dioxide supercritical fluid is adopted as an extracting agent, and has strong solubleness on pesticide residues, and the overall dissolution process is a dynamic extraction process, so that the extraction validity and safety can be ensured. The pesticide residues are removed together with entrainer fat or water in the extraction process, so that the fat or moisture of the rice is removed when harmful pesticide residues are removed, eggs and bacteria can be killed in the extraction process, and the guarantee period and the mouthfeel of the rice are improved. By adopting the method for purifying the rice, which is provided by the invention, the cost in the production process is reduced, industrialization of rice purification is facilitated, no pollution to the environment in the overall production process is generated by a supercritical cycle change of carbon dioxide, and secondary pollution to the rice is not generated.

Description

technical field [0001] The invention relates to a green and purified rice production method and a device thereof, belonging to the technical field of rice purification production. Background technique [0002] In modern society, people pay more and more attention to food safety. At present, the method of static extraction or attachment of solvent or masking agent is commonly used in the technology of removing pesticide residues from rice. This method generally causes secondary pollution of rice, pollutes the environment at the same time, and cannot remove pesticide residues well. , can not destroy the worm eggs and other microorganisms in the rice, and other ingredients added will also change its original flavor of the rice, and this method of purifying rice is labor-intensive and energy-consuming. [0003] In the prior art, a method of supercritical liquid extraction is also used to remove pesticide residues from rice. The authorized announcement number: CN10136646613 disc...

AI Technical Summary

Problems solved by technology

At present, the method of static extraction or attachment of solvent or masking agent is commonly used in the technology of removing pesticide residues from rice. This method generally causes secondary pollution of rice, pollutes the environment at the same time, and cannot remove pesticide residues well. , cannot destroy insect eggs and other microorganisms in the rice, and other ingredients added will also change the original flavor of the rice, and this method of purifying rice is labor-intensive and energy-intensive

[0003] In the prior art, a method of supercritical liquid extraction is also used to remove pesticide residues from rice. Authorized announcement number: CN10136646613 discloses a method for removing pesticide residues from rice. The pressure used in this method is 30-100Mpa, and the time 5-30 minutes, the pressure required by this method is too high, and the requirements for equipment and production conditions are too high, so that the cost of purifying rice is too high or even impossible to realize. In addition, the extraction time used by this method is too short, which makes the pesticides in the rice Residue removal is too difficult

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