First, antibacterial effect
The results shows the carnosic acid powder had different inhibitory effects on Staphylococcus aureus, Escherichia coli, Bacillus subtilis and Hansonyeasts. Used as a food preservative.

Second, antioxidant effect
Carnosic acid powder has good free radical scavenging and antioxidant activity. DPPH and ABTS free radical scavenging ability and iron-reducing antioxidant ability were stronger than VE, but slightly weaker than TBHQ. Its reducing power is stronger than VE and TBHQ.
Carnosic acid powder is fat-soluble and can effectively inhibit the formation of peroxides and the decomposition of polyene fatty acids in oils, thus extending the shelf life of oils. In addition, it was found that carnosic acid powder can effectively remove oxygen free radicals in mouse liver cells, reduce the production of lipid peroxide, and thus stabilize cell membrane. Carnosic acid powder can also inhibit the oxidation of low density lipoprotein, which can effectively prevent the occurrence of atherosclerosis.

Third. Other functions
Studies have found that carnosic acid powder can inhibit the proliferation of HL-60 cells, which is expected to be a new drug for the treatment of hematological malignations, cardiovascular diseases and anti-cancer. Calustian et al. Rosemary extract such as carnosic acid powder has certain therapeutic effect on heart disease and respiratory diseases, has antibacterial effect and can inhibit HIV infection. Second palace, etc. According to the report, rosemary extracts such as carnosic acid powder can not only control people's weight by effectively regulating fat absorption, so as to achieve the purpose of weight loss, but also can treat inflammation, treat sore throat, treat indigestion, prevent aging. Dementia, treating diabetes, promoting the production of nerve growth factor.

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