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Which of the following method of preservation is more suitable and used widely?

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in Fermentation Technology by (72.1k points)
Which of the following method of preservation is more suitable and used widely?

(a) Dried Cultures

(b) Lyophilization

(c) Salt Storage

(d) Storage in liquid Nitrogen

The question was posed to me in unit test.

The above asked question is from Preservation of Industrial Microorganisms topic in chapter The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology

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The correct choice is (b) Lyophilization

Easiest explanation: Lyophilization is the process of freeze-drying which involves sublimation of cell water and can be used to store culture for about 25 years.

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