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Gram-negative bacteria contain outer and inner cell membranes and create pink color colonies upon gram-staining. Most of the gram-negative bacterial species are pathogenic due to the presence of lipopolysaccharides (LPS) on their cell membrane. For instance, E.coli is a gram-negative bacteria in our gut and expresses LPS molecules that participate in the MGBA mechanism.
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The Center for Nutritional Psychology
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The Center for Nutritional Psychology. (2024). Gram-negative bacteria. In Encyclopedia of Nutritional Psychology. The Center for Nutritional Psychology.
https://www.nutritional-psychology.org/encyclopedia/gram-negative-bacteria/
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