A master's thesis in the Department of Animal Production at the College of Agriculture at the University of Basrah discussed the extraction of manan from the plant of Lahana and the study of its use in reducing microbial contamination and contamination with heavy metals and oxidation in frozen stored meat. The message of the student Jamil Zeail and the supervision of Prof. Dr. Amira Kazem Nasser included that the extraction of manan sugar from the leaves of the external halana led to a reduction in the oxidation indicators and microbial contamination of Berker meat stored in freezing when adding mannan. Reducing the contamination with heavy metals for meat offered for sale when adding manan at a concentration of 2%. The message aims to reduce microbial contamination, reduce oxidation in meat that leads to spoilage, and reduce contamination of meat with heavy metals. The thesis concluded that the extraction of manan sugar from the leaves of the outer layer led to a significant decrease in the indicators of oxidation and decomposition in meat burgers and a decrease in the total bacterial numbers of meat burgers stored in freezing at different concentrations.