Nishijima S, Namura S, Mitsuya K, Asada Y
Department of Dermatology, Kansai Medical University, Osaka, Japan.
J Dermatol. 1993 Oct;20(10):654-6. doi: 10.1111/j.1346-8138.1993.tb01357.x.
We studied the antimicrobial efficacy of hand washing with a quick-dry hand washing machine [TE-KIREIKI] employing ultrasonic wave spraying and its incidental alcohol-based product [AROKULIN-E]. The subjects of this study were 10 males who had been instructed not to use any antimicrobial agent for the previous 2 weeks or any hand soap for the previous 5 hours. They pressed their palms on agar before and after washing their hands. After 48-hour incubation at 37 degrees C, the bacterial colonies grown on the agar were counted using the [ASPECT] image processing system. The colony count was expressed as the post-stamp versus pre-stamp percent (%) reduction. Two patterns of hand washing were examined in this study: [A] a 3-second hand wash using an alcohol-based product [AROKULIN-E] and [B] a 30-second hand wash using a nonmedicated detergent soap with running water in addition to hand washing by [A]. The percent (%) reduction after hand washing patterns [A] and [B] were 49.1% and 51.3%. These reduction rates indicated that these patterns did not eradicate bacteria from the hand surface. Therefore, we concluded that this quick-dry hand washing machine employing an ultrasonic wave spraying method combined with an alcohol-based product needs improvement.
我们研究了使用采用超声波喷雾的快速干手洗衣机[TE-KIREIKI]及其附带的酒精基产品[AROKULIN-E]洗手的抗菌效果。本研究的对象是10名男性，他们在之前2周内未使用任何抗菌剂，在之前5小时内未使用任何洗手液。他们在洗手前后将手掌按压在琼脂上。在37摄氏度下培养48小时后，使用[ASPECT]图像处理系统对琼脂上生长的细菌菌落进行计数。菌落计数表示为洗手后与洗手前的减少百分比（%）。本研究考察了两种洗手方式：[A]使用酒精基产品[AROKULIN-E]进行3秒洗手，[B]除了进行[A]方式的洗手外，使用无药洗涤剂肥皂并流水冲洗30秒。洗手方式[A]和[B]后的减少百分比分别为49.1%和51.3%。这些减少率表明这些方式并未从手部表面根除细菌。因此，我们得出结论，这种采用超声波喷雾方法并结合酒精基产品的快速干手洗衣机需要改进。
