Ultra-low freezer for bacterial culture collection preservation

本申请要求购买超低温冷冻机，以保持NSERC、工业和行业协会支持的研究中使用的细菌培养物的长期生存能力。这项研究使用复苏的培养物，重点是食品的微生物生态，其中致病微生物和腐败微生物都被研究，以使食品能够安全地延长货架期。先前进行和计划进行的工作检查了食用动物环境中影响食品安全的因素。目前的设备需求是由于目前使用的冷冻机的陈旧和不可靠，以及它在为大量具有已知工业价值的细菌分离株(发酵)以及具有已知的生化或毒力特征的细菌提供安全存储方面的总体重要性。来自经认可的国际收藏品的参比菌株也存放在这个仓库中。易于获取的可靠的培养物储存可在丢失的情况下提供后备，并允许研究进展的连续性，特别是在从食物链的不同部分获得环境隔离的情况下。这一资源可以比较生物体的起源，并可以进行抗菌素敏感性检查，从而找到更好的细菌控制手段。

This application requests the purchase of an ultra-low temperature freezer to maintain the long term viability of bacterial cultures used in research supported by NSERC, industry and industry-associations. The research, in which resuscitated cultures are used, is focused on the microbial ecology of foods where both pathogenic and spoilage organisms are studied to enable the safe extension of the shelf-life of food products. Work previously conducted and that planned examine factors in the food animal environment that influence food safety. The current equipment request is motivated by the age and unreliability of the freezer presently used, as well as its overall importance in providing safe storage for a large number of bacterial isolates of known industrial value (fermentations) as well as those with known biochemical or virulence characters. Reference strains from accredited international collections are also housed in this storage. Dependable storage of cultures that are readily accessible provides back-up in case of loss, and allows for continuity in the progress of research, particularly where environmental isolates are obtained from different sectors of the food chain. This resource permits comparisons of the origins of organisms and allows for examinations of antimicrobial susceptibility that can lead to better means for bacterial control.