中国畜牧兽医 ›› 2025, Vol. 52 ›› Issue (5): 2449-2457.doi: 10.16431/j.cnki.1671-7236.2025.05.047

• 环境安全 • 上一篇    

新型环境消毒剂全光谱二氧化钛的消毒效果评价

莫雪莲1, 相亦飞1, 李子杨1, 钟雅文1, 黄璐瑗1, 赵林艺1, 宁俊凯1, 何家康1,2,3   

  1. 1. 广西大学动物科学技术学院, 南宁 530004;
    2. 广西畜禽繁育与疾病防控重点实验室, 南宁 530004;
    3. 广西壮族自治区兽用生物制品工程研究中心, 南宁 530004
  • 收稿日期:2024-09-18 发布日期:2025-04-27
  • 通讯作者: 何家康 E-mail:jkhe@gxu.edu.cn
  • 作者简介:莫雪莲,E-mail:1165522176@qq.com;相亦飞,E-mail:xiangyifei003@163.com。莫雪莲和相亦飞对本文具有同等贡献,并列为第一作者。
  • 基金资助:
    广西重点研发计划项目(桂科AB23026082);广西大学横向课题(202300452)

Evaluation of Disinfection Effect of New Environmental Disinfectant Full Spectrum TiO2

MO Xuelian1, XIANG Yifei1, LI Ziyang1, ZHONG Yawen1, HUANG Luyuan1, ZHAO Linyi1, NING Junkai1, HE Jiakang1,2,3   

  1. 1. College of Animal Science and Technology, Guangxi University, Nanning 530004, China;
    2. Guangxi Key Laboratory of Livestock and Poultry Breeding and Disease Control, Nanning 530004, China;
    3. Guangxi Zhuang Autonomous Region Veterinary Biological Products Engineering Research Center, Nanning 530004, China
  • Received:2024-09-18 Published:2025-04-27

摘要: 【目的】对新型全光谱二氧化钛消毒剂进行消毒效果评价,为该消毒剂的临床应用提供理论基础和参考依据。【方法】通过实验室消毒试验,首先考察全光谱二氧化钛消毒剂消毒效果,在消毒剂喷涂作用24 h后涂布不同菌液(金黄色葡萄球菌、枯草芽孢杆菌、铜绿假单胞菌和大肠杆菌)并培养,观察菌株生长状况,评估该消毒剂对常见细菌的预防效果。在培养基上涂布菌液后立即喷涂消毒剂,在不同时间段采样培养并计算杀菌率,考察该消毒剂对细菌的杀灭效果。将金属腐蚀试片浸泡于消毒剂中,评估其对临床生产设备的侵蚀程度。同时考察了光照对消毒剂抑菌效果的影响。另在规模化养殖场开展临床消毒试验,在使用消毒剂前后分别对栋舍内空气及物体表面进行采样并培养,通过统计菌落总数考察消毒剂在临床应用中的杀菌效果,从而全面评价该消毒剂的消毒效果和安全性。【结果】在实验室消毒评价中,预防试验结果显示,受试消毒剂组除铜绿假单胞菌外均无细菌定植。杀菌试验结果显示,受试消毒剂在10 min即可发挥较好灭菌效果,对金黄色葡萄球菌、枯草芽孢杆菌和大肠杆菌的杀菌率在99.80%以上;6 h后对铜绿假单胞菌的杀菌率下降。金属腐蚀性试验结果显示,受试消毒剂原液对304不锈钢作用72 h的腐蚀速率为0.0047 mm/a,基本无腐蚀性。光照试验结果显示,避光组与非避光组均无细菌定植。在临床生产考察中,与消毒剂对照组相比,受试消毒剂组猪舍空气菌落总数极显著降低(P<0.01),物体表面菌落总数无显著变化(P>0.05)。【结论】全光谱二氧化钛消毒剂对常见致病菌有较强的杀灭作用,在临床效果评价中表现良好,对空气中细菌的杀菌率高达100%,且使用成本较低,拥有较好的应用发展前景,为规模化养殖场的环境消毒提供了一种新的方案。

关键词: 二氧化钛; 环境消毒; 杀菌; 抑菌

Abstract: 【Objective】 The purpose of this experiment was to evaluate the disinfection effect of the new full spectrum TiO2 disinfectant and provide theoretical basis and reference for the clinical application of this disinfectant.【Method】 Through the laboratory disinfection test,the disinfection effect of full spectrum TiO2 disinfectant was first investigated,and different bacterial liquids (Staphylococcus aureus,Bacillus subtilis,Pseudomonas aeruginosa and Escherichia coli) were coated and cultured for 24 h after spraying the disinfectant,and the growth status of the strains was observed to evaluate the preventive effect of the disinfectant on common bacteria.The disinfectant was sprayed immediately after the bacterial solution was coated on the medium,and the bactericidal rate was calculated at different time periods to investigate the bactericidal effect of the disinfectant on bacteria.Metal corrosion test tablets were immersed in disinfectants to assess the degree of erosion to clinical production equipment.The effect of light on bacteriostatic effect of disinfectant was also investigated.At the same time,clinical disinfection trials were carried out in a large-scale farm.The air and surface of the building were sampled and cultured before and after the use of the disinfectant,and the bactericidal effect of the disinfectant in clinical application was investigated by counting the total number of colonies,so as to comprehensively evaluate the disinfection effect and safety of the disinfectant.【Result】 In the laboratory disinfection evaluation, the results of prevention test showed that no bacteria colonized in the tested disinfectant group except Pseudomonas aeruginosa. The bactericidal test results showed that the test disinfectant could play a good sterilization effect within 10 min, the bactericidal rate of Staphylococcus aureus,Bacillus subtilis and Escherichia coli was over 99.80%.The bactericidal rate of Pseudomonas aeruginosa decreased after 6 h.The metal corrosion test results showed that the corrosion rate of 304 stainless steel under test for 72 h was 0.0047 mm/a,and there was basically no corrosion.The results of light test showed that there was no bacterial colonization in both the light avoiding and the non-light avoiding groups.In the clinical production investigation,compared with disinfectant control group,the total number of bacterial colonies in the air of hoggery in test disinfectant group was extremely significantly decreased (P<0.01),but the total number of bacterial colonies on the surface of objects had no significant difference (P>0.05).【Conclusion】 The full spectrum TiO2 disinfectant had a strong killing effect on common pathogens,and had a good performance in clinical efficacy evaluation.The bactericidal rate in the air was as high as 100%,and the use cost was low,which had a good application and development prospect,and provided a new scheme for the environmental disinfection of large-scale farms.

Key words: TiO2; environmental disinfectant; sterilization; bacteriostasis

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