Antimicrobial Ability of Limonene, a Natural and Active Monoterpene
天然活性单萜-柠檬烯的抑菌性能研究

The antimicrobial activity of limonene was determined by minimum inhibitory concentration (MIC) and inhibitory circle. The results showed that MIC to Saccharomyces cerevisiae and Saccharomyces sp. was 320 mg/L. However, it didn′t show obvious antimicrobial effect on Staphylococcus aureus. Its antimicrobial ability was stable in pH value between 4 and 9. It was also stable when heated at 80℃. However, the antimicrobial ability to Saccharomyces sp. and Escherichia coil decreased when heated at 100℃. And it decreased when heated at 121℃.The results of inhibitory circle showed that limonene had better antimicrobial ability to Saccharomyces cerevisiae, Saccharomyces sp. and Aspergillus niger than potassium sorbate and sodium benzoate.