Tuesday, May 2, 2017

Question from a student 20170502d

Question about  pastpaper 2013-2014

I would like to know  how to calculate new D value like question in B5 (d).
And do you mind checking if the following ans in B5 is correct?
a. no. of D's 
Spoilage bacteria = 100D
Bacterial spores = 10D
Fungal spores = 50D
b.
Spoilage bacteria = 10^-95
Bacterial spores = 10^ -6
Fungal spore = 10^-49

c. the standard canning process for  Spoilage bacteria and  Fungal spore are sufficient, but not for bacterial spores

A: You are correct, but you should show your calculation too, also need to explain.
Please see https://fnsc3180hsk.blogspot.hk/2017/05/question-from-student-201617-20170501a.html?showComment=1493708599366#c8295958764595042514

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