Hashemi S M B, kaveh S, poorkarimi A. Detoxification of heavy metals by probiotic bacteria: investigating the effect of temperature, time, and type of bacteria on the removal of lead and cadmium metals using the response surface methodology. FSCT 2025; 22 (159) :195-206
URL:
http://fsct.modares.ac.ir/article-7-76640-en.html
1- Associate professor, Department of Food Science and Technology, College of Agriculture, Fasa University, Fasa, Iran , hasshemii@gmail.com
2- Ph.D of food chemistry, Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences & Natural Resources, Gorgan, Iran
3- Assistant professor, Department of Civil Engineering, Faculty of Engineering, Fasa University, Fasa, 7461686131 Iran
Abstract: (412 Views)
Pollution in industrial areas due to the release of heavy metals is one of the important environmental concerns. Heavy metals can have very adverse effects on human and animal health. In this regard, food products contaminated with heavy metals, even in low concentrations, can have harmful effects on human health. In this regard, the use of microorganisms is known as a new and low-cost method for the biological removal of metals. The purpose of this study was to investigate the effect of the type of microorganism (Lactiplantibacillus paraplantarum, Lactobacillus paragasseri, and Limosilatobacillus reuteri), temperature, and incubation time on the removal of lead and cadmium metals using the response surface methodology. The results showed that the removal rate of lead metal using microorganisms was significantly higher than that of cadmium. Increasing the time from 0 to 24 hours significantly increased the amount of metal removal. On the other side, increasing the temperature up to about 38 °C positively affected the removal of metals, but increasing the temperature further reduced the ability of microorganisms to remove metals. In general, the software determined the optimal conditions to achieve the maximum removal of lead and cadmium metals by 45.9% and 39.65%, respectively, at 24 hours incubation time and 33.98 °C temperature using Lactobacillus paragasseri bacteria. Therefore, according to the results of this research, the use of microorganisms such as Lactobacillus paragasseri is a useful solution for removing heavy metals from various sources, such as industrial wastewater.
Article Type:
Original Research |
Subject:
Food Microbiology Received: 2024/08/20 | Accepted: 2024/09/11 | Published: 2025/04/21