题目内容

( )is defined as the time required to achieve a stated reduction in the microbial population at a given temperature.

A. Thermal death time
B. D value
C. Z value
D. F value

查看答案
更多问题

( ) provide a good alternative, as they can withstand higher temperatures(up to 75℃), operate at a wide pH range (1 to 13), and have reasonable chlorine resistance (up to 50 ppm chlorine).

A. cellulose acetate
B. polymer
C. Polysulfones
D. ceramic

There are two parameters used to describe the thermal resistance of a microbial specie in an elevated temperature environment they are ( ).

A. D-value and Z-value
B. D-value and F-value
C. Z-value and F-value
D-value and E-value

In most situations, growth of most species of microorganisms is negligible at ( )℃.

A. -4
B. -10
C. -18
D. -27

The potential hazards of the toxin from Clostridium botulinum is sufficient to create ( )fatality in humans who ingest the toxin.

A. 65%
B. 70%
C. 90%
D. 30%

答案查题题库