电子束γ射线和X射线辐照对短小芽孢杆菌杀菌效果的研究

摘要

The sterilizing effect of electron beams,γ-rays and X-rays onBacilluspumilusATCC 27142 is studied by measurement of surivival microorganism. TheD10 value of electron beams,γ-rays and X-rays irradiation for aerobic bacterial count is 1.047,0.946,1.016 kGy. The results show the ray type is no significant difference in the effect ofBacilluspumilus sterilized.%以电离辐照灭菌的指示细菌短小芽孢杆菌ATCC 27142为试材，研究加速器（电子束）、钴源（γ射线）和加速器转靶（X射线）对短小芽孢杆菌生物指示菌辐照杀菌的效果，通过存活菌计数法确定菌落总数的D 10值。经电子束、γ射线和X射线辐照的短小芽孢杆菌生物指示菌菌落总数的D10值分别为1.047，0.946，1.016 kGy，表明电子束、γ射线和X射线对短小芽孢杆菌的杀菌效果无显著性差异。