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Name: Muhammad
Status: other
Grade: n/a
Location: Outside U.S.
Country: Iran
Date: Fall 2012

Does yogurt contain gram positive or gram negative bacteria or both?

The typical strains are gram positive.

B. Zimmerman

Lactobacillus bulgaricus and Streptococcus thermophilus, which are commonly found in yogurt, are Gram-positive bacteria.

Judy Luke

To my knowledge, the main bacterial cultures used in yogurt include subspecies of Lactobacillus delbrueki and Streptococcus salivarius. Both are Gram positive bacteria.

S. Unterman Ph.D.

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