The Effect of the Tuba Root (Derris elliptica) Extract on BOD, COD, pH, and Microbial Population in Brackish Pond Water | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 119, Volume 29, Issue 1, January and February 2025, Page 2537-2551 PDF (449.18 K) | ||||
| DOI: 10.21608/ejabf.2025.414086 | ||||
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| Author | ||||
| Usman et al. | ||||
| Abstract | ||||
| The application of tuba plant roots (Derris elliptica) as a piscicide has implications for water quality and microbial population within aquatic environments. This study aimed to evaluate the influence of rotenone of the tuba root extract on BOD, COD, pH, and microbial population in brackish pond water. The methodology involved the extraction of tuba roots using chloroform, followed by the quantification of rotenone concentration through GC-MS analysis. The experiment included using brackish pond water treated with different concentrations of tuba root extract: T1 at 10.000ppm, T2 at 50,000ppm, T3 at 100.000ppm, T4 at 500.000ppm, T5 at 1000.000ppm, and T0 as the control. The extraction process yielded 18.68965 grams of tuba root extract from 1000 grams of tuba root powder, with a rotenone concentration of 114,387.5535ppm, equating to 22.22878%. Observations of water quality parameters indicated that treatment T1 did not alter the biochemical oxygen demand (BOD), while treatments T2 and T3 resulted in an increase in BOD values. Conversely, treatments T4 and T5 led to a decrease in BOD. Additionally, chemical oxygen demand (COD) measurements revealed a positive correlation between the concentration of tuba root extract and COD values, as well as pH levels. Total microbial population assessments showed that treatment T1 of 5100 CFU/ml had no significant effect on microbial populations, whereas treatments T2 of 2900 CFU/ml and T3 of 2750 CFU/ml enhanced microbial population. In contrast, treatments T4 of 1060 CFU/ml and T5 of 1060 CFU/ml inhibited microbial populations, moreover the control treatment T0 exhibited a total microbial population of 3100 CFU/ml. | ||||
| Keywords | ||||
| Brackish pond water; Rotenone; Total microbial population; Tuba root extract | ||||
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