Inhibitory Effects of Several Plant Essential Oils Against Two Pathogens of 'Red Sun' Kiwifruit

【Objective】The aim of the study was to investigate inhibitory effects of plant essential oil on pathogens in the'Red Sun'kiwifruit.In addition,the plant essential oil that had good freshkeeping effect was selected.【Method】In this study,the dilution method was used to select the essential oils which had inhibitory effects against two pathogens of'Red Sun'kiwifruit.Moreover,the minimal inhibitory concentration(MIC)and minimum bactericidal concentration(MBC)of essential oils were determined.【Results】The minimal inhibitory concentration of cinnamon essential oil,thyme oil and clove oil against Colletotrichum acutatum were 0.125×104,0.500×104 and1.00×104μL/L,respectively.The minimum bactericidal concentrations were 0.125×104,1.25×104 and 1.00×104μL/L,respectively.The minimal inhibitory concentrations of cinnamon and peppermint essential oils against Botryosphaeria parva were 0.125×104 and 2.50×104μL/L.The minimum bactericidal concentrations were 0.125×104μL/L and 10.0 ×104μL/L,respectively.【Conclusion】Cinnamon essential oil,thyme oil,clove oil had good inhibitory effect against Colletotrichum acutatum.Cinnamon essential oil had high inhibitory activity against Botryosphaeria parva but peppermint essential oil was not obvious.