Sodium polyanetholsulfonate (SPS) performs all the following functions in the blood culture bottles, except

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Sodium polyanetholsulfonate (SPS) is a commonly used additive in blood culture bottles. It functions to prevent clotting by acting as an anticoagulant, prevent phagocytosis by binding to white blood cells, and inactivate certain antimicrobials to improve the recovery of bacteria in blood cultures. However, SPS does not act as a bacterial nutrient. In fact, it may have a negative effect on bacterial growth due to its binding to iron, which is essential for bacterial growth.

Sodium Polyanetholsulfonate (SPS) Performs All the Following Functions in the Blood