1. Prepared media from following recipes:
Tomato Juice Agar (1)
pH ~ 6.1 +/- 0.2 at 25oC i) Added dH20 to 1 Liter. ii) Dissolved media components in large flask. iii) Autoclaved media.
iv) Poured media in petri dishes and allowed to solidify.
Tomato Juice Agar (2)
i) Added skim milk powder to flask then fillled to 500 ml with dH 20. ii) Added remaining ingredients to a separate flask and filled to 500 ml with dH 2 0. iii) Autoclaved flasks separately. iv) Combined two flasks of media. v) Poured media in petri dishes and allowed to solidify. |
2. Isolated S. lactis using enrichment media:
i) Inoculated tomato juice agar (1) and tomato juice agar (2) plates with fresh whole milk using streak plate technique. ii) Incubated at 37oC for 48 hours.
iii) Isolated and restreaked colonies with characteristic morphologies
on T-Soy
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3. Performed confirmatory assays:
i) Performed the following procedures for organism identification:
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