Sodium benzoate (Benzoic acid sodium salt) is a D-Amino Acid Oxidase Inhibitor.Sodium Benzoate is a Food Preservative.

At 24- and 48-hour. incubation time, sodium benzoate concentrations of 1.0, 1.5, and 2.0 mg/mL increased micronucleus formation when comparing with the control group (P < 0.05). At 24- and 48-hour. incubation time, sodium benzoate concentrations of 2.0 mg/mL increased chromosome break when comparing with the control group (P < 0.05). Sodium benzoate did not cause Ala40Thr (GCG→ACG) in superoxide dismutase gene. Sodium benzoate had the mutagenic and cytotoxic toxicity in lymphocytes caused by micronucleus formation and chromosome break[1].

Sodium benzoate (NaB)?-treated rats spent less time in the open arm and had fewer entrances to the open arms in comparison with the control group (p<0.04). Also, the performance of the NaB-treated rats in fixed and accelerating speed rotarods was impaired, and the riding time (endurance) was lower than the control group (p<0.01)[2].

The study was carried out between July and September 2012 in the Laboratory Animal Center of Shiraz University of Medical Sciences, Shiraz, Iran. The rats were divided into 2 groups receiving distilled water and sodium benzoate (NaB)? (200mg/kg/day). All the animals received daily gavages for 4 weeks. At the end of the fourth week, anxiety, and motor function were assessed in elevated plus maze and rotarod test[2]