( ) 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
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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%
Pasteurization is most often associated ( ) .
A. with liquid foods and elevated temperature
B. with solid foods and elevated temperature
C. with elevated temperature
D. with Clostridium botulinum