Question

Which solution is used in the laboratory to observe bacteria in butter or curd

Answer 1

The types of microscopic organisms utilized in yogurt are Streptococcus thermophilus and Lactobacillus bulgaricus.

These species eat the sugars in drain. As the microorganisms eat drain sugars, the microbes create something many refer to as lactic corrosive. Lactic corrosive makes drain proteins turn sour.

This believer the lactose into lactic corrosive, which bestows the sharp taste to curd.

Answer 2

The solution which is used in the laboratory to observe bacteria in butter or curd is called as CRYSTAL VIOLET.

Explanation:

Step 1: For observing bacteria in the butter or curd, first a drop of butter or curd is placed on the clean slide. It is then heated over flame for few seconds.

Step 2: Once the heating procedure is completed, to the slide few drops of crystal violet stain is added and left undisturbed for 20-30 minutes.

Step 3: The slide is then washed with distilled water.

Step 4: Then it is mounted with clean cover slip and is observed under microscope.