Question Bank - General Science

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Pasteurization is a process which involves heating of liquids at:

A.
120° C -­ 130° C for 60 Minutes
B.
80° C -­ 90° C for 30 Minutes
C.
60° C -­ 70° C for 30 Minutes
D.
70° C ‚¬€œ 80 ° C for 60 Minutes

Solution:

The correct answer is 60° C -­ 70° C for 30 Minutes.Pasteurization is a process in which heat is applied to beverages to kill pathogens and extend shelf life.In Pasteurization the heat applied is below the boiling point of water which is mildly heated to kill off harmful bacteria, salmonella, and other disease-causing pathogens.The process is named after Louis Pasteur who developed the method to kill microbes in 1864.While Pasteurization kills microorganisms and pathogens it is not a form of sterilization.Additional InformationFor pasteurization of milk, it is heated at 63°C for 30 Minutes.60°C temperature is required for the pasteurization of fruit juices.10°C temperature is enough for killing yeasts, causing non ‚¬€œ poisonous type of decay in fruit products and vegetables.

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