Study on Practical Control Technology on Mold Contaminating Dried Persimmon
Taking the Penicilliumchry sogenum strain S1 and Aspergillus niger strain S2 isolated from mol-dy dried Small Calyx persimmon as materials,the technologies for controlling their growth were studied using the food preservatives including chlorine dioxide,sodium benzoate,potassium sorbate and double sodium ace-tate,and the ultraviolet sterilization.The results showed that the food preservatives all had inhibitory effects on the two mold strains especially the chlorine dioxide.The inhibitory rate of chlorine dioxide to S1 was 99.76%at 30 mg/L for 10 minutes,and that to S2 was 90.82%at 30 mg/L for 15 minutes and 99.37%at 50 mg/L for 15 minutes,so using chlorine dioxide could obtain better inhibitory effect on mold at lower concentration in shorter time.The ultraviolet sterilization also could better inhibit the growth of S1 and S2,and the sterilization rate to S1 and S2 reached 93.85%and 76.65%respectively when the irradiation time was 10 minutes.