FST 140: Thermal Resistance Experiemnts

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/6

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 11:22 PM on 10/6/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat

No analytics yet

Send a link to your students to track their progress

7 Terms

1
New cards

D-value

time in mins. needed to destroy 90% of the population of a microbial species at a given temperature

2
New cards

TDT - tube method

  • Inoculated menstruum is distributed in small-diameter test tubes, heated in an oil bath, then plunged into water at below 70F, then after cooling the contents are plated and the number of survivors is determined.



3
New cards

TDT - can method



cans are heated in small, accurately controlled steam retorts

4
New cards

Tank method

  • inoculated substrate is placed in the heating chamber

    • is agitated to desired temperature


5
New cards

Flask method

  • this method is for studying resistance of bacteria at temperatures below the boiling point of water

  • a three-neck flask (Woulff bottle) is employed as the substrate container



6
New cards

Thermoresistometer method

was designed by Stumbo (1948) particularly for studying resistance of bacterial spores to temperature in the higher range (above 240F).

  • applicable for studying resistance temps over the range of 215 to 300F



7
New cards