电子束辐照乳酸钙杀菌效果的研究

The effect of E-beam irradiation on the sterilization for calcium lactate

研究了食品添加剂乳酸钙的电子束辐照灭菌,对辐照前后乳酸钙产品的质量、菌落总数、霉菌和酵母总数、大肠菌群的变化进行了测定。研究发现,电子束辐照吸收剂量与乳酸钙中微生物致死率呈现正相关,测得乳酸钙经电子束辐照灭菌的D10值为4.38 kGy。经10 kGy电子束辐照灭菌后,乳酸钙的百分含量略有下降,但对乳酸钙质量不会产生明显影响。

The sterilization of calcium lactate as food additive was performed by electron beam. The quality, numbers of colony, gather mold and yeasts were determined before and after irradiation, It was found that the mortality of microbes significantly decreased with the increment of absorbed doses and the D10 value of colony number was determined to be 4.38 kGy. And the quality of calcium lactate satisfied the food standard though its mass fraction decreased a little after irradiation with electron beam of 10 kGy.