Guangdong Academy of Agricultural Sciences is an agricultural scientific research institution directly under the Guangdong Provincial People's Government. It was established in January 1960. It was formerly known as the Rice Research Laboratory of Sun Yat-sen University founded by Professor Ding Ying, a famous agronomist in 1930, and the South China Institute of Agricultural Sciences established in 1956. . The Agricultural Biological Genetics Research Center of the Guangdong Academy of Agricultural Sciences is a scientific research institution directly affiliated to the Guangdong Academy of Agricultural Sciences. It was established in 2012. It mainly conducts the basic theory and application research of agricultural biological species resources, agricultural biotransgenic research, and provides agricultural bio-gene evaluation and preservation. Information sharing and other services, responsible for the management of the hospital center.

In order to better complete the research task, the Agricultural Biological Genetics Research Center of the Guangdong Academy of Agricultural Sciences purchased the Luoshang tissue grinder to make the detection of genetically modified materials more efficient and help the center teachers speed up the research progress.

There was no significant difference in the concentration and purity of DNA and RNA extracted from the tissue mill after treatment with Luoshang China and manual liquid nitrogen milling (paired test P>0.05). However, manual grinding has a large sample loss rate. For samples with low DNA extraction concentration, the tissue grinder can achieve zero loss of the sample, and has obvious advantages in DNA extraction, and the manual processing process is complicated and easy to cross. The contamination and operation time are not as good as those of LAWSON's tissue grinder. Therefore, the tissue grinder has great advantages for DNA extraction work compared to manual grinding.