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Environ Anal Health Toxicol > Volume 37:2022 > Article
Environmental Analysis Health and Toxicology 2022;37(4):e2022030-0. doi: https://doi.org/10.5620/eaht.2022030
Effect of storage on the levels of sodium benzoate in soft drinks sold in some Nigerian market with exposure and health risk assessment
Joseph Segun Akolawole1,2 , Patrice Anthony Chudi Okoye1 , Daniel Omokpariola1,3
1Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Anambra State Nigeria
2Agulu Central Laboratory, National Agency for Food Drug Administration and Control, Agulu, Anambra State, Nigeria
3Quality Unit, OCP Africa Fertilizer Nigeria Limited, Maitama, Abuja, Nigeria
Corresponding Author: Daniel Omokpariola ,Email: omeodisemi@gmail.com
Received: July 4, 2022;  Accepted: October 4, 2022.
ABSTRACT
Soft drinks consumption is still a controversial issue for public health and public policy, as the influence storage condition impacts taste, color and shelf life. In all, fifty (50) soft drinks samples, acquired from Enugu, Aba, Asaba, Onitsha and Owerri markets in Nigeria, were subjected to four different storage conditions namely: room temperature (RT), refrigerated (RF), 40 °C and 60 °C for 15 days after which they were analyzed for sodium benzoate concentration using HPLC – UV/Vis detector. The results showed on the average that at RT and RF, soft drinks from Aba had the highest concentration of sodium benzoate (98.7 mg/L and 112.9 mg/L) respectively while samples from Asaba had least concentration of 39.9 mg/L and 38.1 mg/L. At increased temperature of 40 °C, the concentration of sodium benzoate increased generally across the sample, while at 60 °C, the levels in all the samples analyzed were either reduced to less than 50% or below detection level, which suggest that degradation of sodium benzoate at this elevated temperature could result in benzene formation, which is a known carcinogen. Carcinogenic and non-carcinogenic risk assessment showed that children are at risk compared to adults due to higher sodium benzoate daily intake leading to high rate of hyperactivity in correlation to malaise.
Keywords: soft drinks, sodium benzoates, storage conditions, high pressure liquid chromatography, risk assessment
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