Browsing by Author "Manikandan, Rajendran"

Now showing 1 - 4 of 4

THE BIOTRANSFORMATION POTENTIAL OF BACILLUS CEREUS ON Β- CYPERMETHRIN TO PROTECT THE EARTHWORM (PERIONYX EXCAVATUS) ON INSECTICIDE -CONTAMINATED SOIL
(Taylor & Francis Online, 2022) Mathiyazhagan, Narayanan; Jimmandiyur, Mathappan Murugan; Gajendiran, Kandasamy; Sabariswaran, Kandasamy; Manikandan, Rajendran
The pre-isolated B. cereus had shown better β-cypermethrin resistance at 100 mg L−1 dosage in the Mineral Salt Medium (MSM). Hence, it was applied for the biodegradation study on MSM. The GC-MS analysis revealed that the B. cereus had the potential to degrade β-cypermethrin and metabolize it into six predominant less or nontoxic components (benzene, 1-ethyl−3-methyl-, ethanethiol, 2-(dimethylamino)-, 1-(2-acetoxyethyl)-3,6-diazahomoadamantan-9-one, silane, 9-anthracenyltrimethyl-, 1-(3-hydroxy-3-methylbutyl)-3,6-,fumaric acid). Based on this biodegradation potential, four experimental groups, namely A, B, C, D and control, were framed and the biodegradation potential of B. cereus on β-cypermethrin and interaction with P. excavates were studied. Group C, which includes B. cereus and 10 P. excavates under β-cypermethrin stress excavates positive survival interaction. It was confirmed by the presence of metabolites such as benzene, 1-ethyl-3-methyl-, ethanethiol, 2-(dimethylamino)- and 1-(2-acetoxyethyl)-3,6-diazahomoadamantan-9-one, in P. excavates. Furthermore, these were similar to the metabolites of β-cypermethrin degraded by B. cereus. These results conclude that the biodegradation potential of B. cereus can protect the life of P. excavates from β-cypermethrin toxicity and thus, can support the balancing of soil fertility, structure and soil biotas such as flora and fauna.
PHYTOSTABILIZATION OF METAL MINE TAILINGS—A GREEN REMEDIATION TECHNOLOGY
(Elsevier, 2022) Lavanya, Muthusamy; Manikandan, Rajendran; Kavitha, Ramamoorthy; Mathiyazhagan, Narayanan; Sabariswaran, Kandasamy
Mine tailings are the main source of environmental pollution due to the containing high concentration of heavy metals in the tailings, which cause a serious health threat to humans and animals. The toxic metals in mines are rapidly releasing into the nearby groundwater and agricultural soils causing various environmental and health problems in the mining area. Therefore, mine tailings need suitable techniques to reduce the release of heavy metals and their remediation technology. To date, numerous physical and chemical techniques have been applied for the remediation of heavy metals in contaminated water and soils, these techniques are expensive and applicable on small scale. Phytoremediation is one of the most promising, cost-effective, and eco-friendly technology for the removal of heavy metals from the polluted environment. In this chapter, we emphasize the environmental and health impacts of mine tailings and a potential method of removal and reduction of leaching toxic metals in mine tailings via green remediation technology.
PHYTOSTABILIZATION OF METAL MINE TAILINGS—A GREEN REMEDIATION TECHNOLOGY
(Elsevier, 2022) Lavanya, Muthusamy; Manikandan, Rajendran; Kavitha, Ramamoorthy; Mathiyazhagan, Narayanan; Sabariswaran, Kandasamy
Mine tailings are the main source of environmental pollution due to the containing high concentration of heavy metals in the tailings, which cause a serious health threat to humans and animals. The toxic metals in mines are rapidly releasing into the nearby groundwater and agricultural soils causing various environmental and health problems in the mining area. Therefore, mine tailings need suitable techniques to reduce the release of heavy metals and their remediation technology. To date, numerous physical and chemical techniques have been applied for the remediation of heavy metals in contaminated water and soils, these techniques are expensive and applicable on small scale. Phytoremediation is one of the most promising, cost-effective, and eco-friendly technology for the removal of heavy metals from the polluted environment. In this chapter, we emphasize the environmental and health impacts of mine tailings and a potential method of removal and reduction of leaching toxic metals in mine tailings via green remediation technology.
SCREENING, DETECTION AND ANTIMICROBIAL SUSCEPTIBILITY OF MULTI-DRUG RESISTANT PATHOGENS FROM THE CLINICAL SPECIMENS
(ScienceDirect, 2021) Nivedhitha, Kabeerdass; Sivakumar, Krishnamoorthy; Murugesan, Anbazhagan; Rajkumar, Srinivasan; SenthilKumar, Nachimuthu; Manikandan, Rajendran; Maghimaa, Mathanmohun
Contemporarily, AMR reserve the prestigious menace to sufferer ministrations as it pilots to augmented unwholesomeness and ephemerality, augmented infirmary lingered, and stern remunerative to the sufferer and rustic. The intrusion or chasm or rip up of the unwrinkled and featureless textural executable forum (homeostasis), through rents accords way for morbific distinctive imperceptible life form which doles pyemic pool. Thus fashioned decayed or necrosed or sloughed or putrified or gangrenized samples from SOTs, ICU, CCU, emergency ward, dental ward, post-operative ward and labour ward germproof sixty specimens were amassed 1. swabbing- oral, nasopharyngeal, otitic, fornix, proctitic, swabbing along with post-surgical nonhealing lingering glycemic’s and non-glycemic’s, trophic ulcers, non-healing malleolars pressure point internal or external sore, chemical and thermal ulcers inclusive of bruises by unsoiled wads 2. Materials amassed in germproof labeled conduits for C/S samples such as urine, stools, sputum, and blood from dissimilar infirmaries and laboratories at Madurai which were inoculated in the apposite media and brooded properly, corroborated through gram staining inveterate as gram+ve, gram-ve, aerobic, anaerobic cultures of imperceptible life forms affirmed as E. coli, Staphylococcus aureus, Klebsiella pneumonia, Bacillus sp., Pseudomonas aeruginosa, K. oxytoca, Candida albicans and Clostridium perfringens whose microbic vigor explicitly morbific branded schematically by envisioning the zone of inhibition viz E. coli (20 mm), K. pneumonia (25 mm), P. aeruginosa (22 mm), S. aureus (26 mm) in the post cathartically soiled petri plate as multidrug opposition or sensitized.