Antifungal Mechanism of Cinnamon Essential Oil against Chinese Yam-Derived Aspergillus niger

Chinese yam with damaged outer skin can be easily oxidized and infected by spoilage fungi. To find preservatives in the storage of yam, Aspergillus niger 103 was isolated, identified, determined as dominant fungus according to Koch’s postulates. Then, strain used a model screen antifungal agents study mechanisms this study. We found that cinnamon essential oil best agent, minimum concentration against 25 μg/mL. The life could significantly extend 27.66 days spraying (25 μg/mL). further explore mechanism 103, alkaline phosphatase activity electrolyte content fungal solution were measured. increased than those without oil, which showed destroy integrity cell wall membrane disrupted cellular homeostasis 103.