PHC320H1 Lecture Notes - Lecture 6: Thermal Death Time, Crown Ether, Ethylenediaminetetraacetic Acid

• School: UTSG
• Department: Pharmaceutical Chemical Engineering and Applied Chemistry
• Course: PHC320H1
• Professor: Shirley Wu

Document Summary

Delta x- time it takes to kill 90% of organisms (same thing as decimal reduction time) As we increase temp, the d value decreases. Thermal death time is the same thing as d- value: so, plot for d-value vs. time for microorganism, different sterilization processes have different d-values (time it to takes to kill. If we have a sterilization process and we want to see how effective it is, they give you thermal death time (d-value) at 121. 1 degrees. Based on z-value, when you decrease temp, it takes longer to kill the cells. Won"t ask you to derive equation, but just understand concepts. The closest coordination complexes are a covalent bond. But, instead of sharing electrons, one species donates two electrons to a central atom (acceptor). And usually the acceptor is a transition metal. The species that donate the electrons are called ligands (lewis bases) and acceptors are lewis acids.