Production method of green purified rice and device

Abstract

The invention discloses a production method of green purified rice. Through the production method of the green purified rice, the pressure is controlled to be under 30 Mpa and the time is controlled to be more than 30 minutes. The carbon dioxide supercritical fluid dynamic extraction technology is utilized, carbon dioxide supercritical fluid is used as an extraction agent and has high solubility for pesticide residues, and the whole dissolution process is a dynamic extraction process, so that the extraction efficiency and completeness are ensured. The pesticide residues are removed along withentrainer grease or water in the extraction process, so that grease moisture is removed from the rice while the pesticide residues and harmful substances are removed from the rice, eggs and bacteria can be killed in the extraction process, and the quality guarantee period and mouthfeel of the rice are improved. Through the production method of the green purified rice, the cost in the production process is lowered, and industrialization of rice purification is better realized. the supercritical cycle change of carbon dioxide avoids pollution to the environment, and no secondary pollution to therice exists in the whole production process.

Description

technical field [0001] The invention relates to the technical field of rice purification production, in particular to a production method of green and purified rice and a device thereof. 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: CN101366466...

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

Images