Response Surface Design for Removal of Lead by Different Lactic Acid Bacteria
| Author | Leila Goudarzi | en |
| Author | Rouha Kasra Kermanshahi | en |
| Author | Gholamreza Jahed Khaniki | en |
| Orcid | Leila Goudarzi [0000-0002-5885-4784] | en |
| Orcid | Rouha Kasra Kermanshahi [0000-0002-1395-8002] | en |
| Orcid | Gholamreza Jahed Khaniki [0000-0001-9983-4838] | en |
| Issued Date | 2020-08-31 | en |
| Abstract | Background: Toxic heavy metals, such as lead, are widely used in industry and may cause serious health problems and ecological hazards for living organisms. Objectives: The current study aimed to investigate the removal efficiency of lead by Lactobacillus strains using a methodological approach. Methods: After selecting the bacteria with the maximum metals removal ability, experiments were conducted according to (i) the Plackett-Burman design (Minitab18 program) to screen several significant process factors and (ii) Central Composite Design (Design-Expert 11.1.2.0 program) to find out the optimum process conditions for the maximum capacity of metal removal efficiency. Results: The optimum pH, metal, and bacterial concentration were 6.76, 391 mg.L-1, and 4.60 g.L-1 for lead removal ability of L. acidophilus ATCC4356. A quadratic model was developed to correlate the variables with removal efficiency. According to the results, this model was not statistically significant (P > 0.05). Conclusions: The experimental removal efficiencies at the optimum condition for lead by L. acidophilus ATCC4356 (73.9%) were consistent with the predicted values. Consequently, due to their appreciate efficiency and the lower cost of the lead removal ability, these two bacteria may be a candidate as good biosorbents. The results also confirmed that the Response Surface Methodology is an appropriate methodology for modeling of removal efficiency. | en |
| DOI | https://doi.org/10.5812/jhealthscope.101049 | en |
| Keyword | Lead | en |
| Keyword | Response Surface Methodology (RSM) | en |
| Keyword | Lactic Acid Bacteria | en |
| Publisher | Brieflands | en |
| Title | Response Surface Design for Removal of Lead by Different Lactic Acid Bacteria | en |
| Type | Research Article | en |