Question

A yellow color in the creamy layer of milk may be caused by
A.Pseudomonas synxantha
B. Pseudomonas syncyanea
C. both (a) and (b)
D. S. marcescens

Answer 1

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OPTION [A]. is correct ✅
【 Pseudomonas synxantha】

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Answer 2

Answer:

Option A. Pseudomonas synxantha is the correct option.  The yellow color in the creamy layer of milk is caused by Pseudomonas synxantha.

Explanation:

Pseudomonas synxantha along with the help of species of flavobacterium imparts a yellow color to the milk.

• During the refrigeration at dairy farms and processing plants, mainly before pasteurization by the psychrotrophic microorganisms such as pseudomonas, Alcaligenes, Listeria monocytogenes, and flavobacterium can grow in refrigerated or stored milk.

• The process is called milk spoilage in which proteolytic enzyme secreted by pseudomonas affects the stored milk at a low temperature. This can also reduce the quality of raw milk.