Suvana S^1,2*, Muralidhar M², Lalitha N², Avunje S³, Baldev E², Kumararaja P², Saraswathy R², Vinay TN³, Gopinath D², Rajesh R² and Nagavel A²

¹ICAR- Central Research Institute for Dryland Agriculture, Hyderabad, India
²ICAR- Central Institute of Brackishwater Aquaculture, Chennai, India
³ICAR- Central Institute of Freshwater Aquaculture, Bangalore, India

*Corresponding Author: Suvana S, ICAR- Central Research Institute for Dryland Agriculture, Hyderabad, India.

Received: February 13, 2025; Published: February 24, 2025

Abstract

Peracetic acid (PAA) is a promising disinfectant for use in aquaculture due to its strong oxidizing properties and relatively harmless decomposition products compared to other commonly used disinfectants such as bleaching powder and sodium hypochlorite. This study evaluated the residual effect and efficiency of PAA under controlled conditions at low (5 ppt) and high (25 ppt) salinities. The degradation of PAA was rapid, with an exponential decrease in residual content observed over 48 hours. Residual PAA was higher in high saline water compared to low saline water. PAA at 10 mg l-1 significantly reduced heterotrophic bacterial counts and inhibited the growth of luminescent Vibrio sp. However, the efficiency of PAA decreased in high turbidity samples due to the presence of organic matter. A comparative study with bleaching powder and sodium hypochlorite at 10 mg l-1 chlorine showed that PAA residues diminished within 2 days, while residual chlorine from the other disinfectants persisted for 4 days. The disinfection efficiency of PAA was comparable to that of bleaching powder and sodium hypochlorite. The study concludes that PAA can be used as an alternative disinfectant in aquaculture reservoirs, as its residual effect is lower and less toxic than other commonly used disinfectants, and it effectively inhibits the growth of Vibrio sp.

Keywords: PAA; Residual Effect; Salinity; Bacterial Count; Turbidity

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Citation

Citation: Suvana S., et al. “Comparative Disinfection and Residual Effect of Peracetic Acid with Other Disinfectants in Aquaculture". Acta Scientific Agriculture 9.3 (2025): 69-75.

Copyright

Copyright: © 2025 Suvana S., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.