Evaluation of the antimicrobial activity of Moringa oleifera seed extract as a sustainable solution for potable water

Dasgupta, Saumyadeb; Gunda, Naga Siva Kumar; Mitra, Sushanta K.

doi:10.1039/c6ra04011j

Cited by 20 publications

(21 citation statements)

References 58 publications

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“…Despite a significant decrease in microbial load, the presence of total coliforms for a 60% dosage of natural coagulant combined with 40% PAC could still be observed. According to a recent study (Dasgupta et al, 2016), the antimicrobial effects of MO seeds are attributed to the modification of the peptidoglycan backbone of the cell wall. In this way, it can be ascertained that the dosage of natural coagulant interferes with the removal of total coliforms, constituting an indispensable additional step of the disinfection process, so as to render microorganisms inactive and guarantee the production of potable water.…”

Section: Resultsmentioning

confidence: 99%

Combined water treatment with extract of natural Moringa oleifera Lam and synthetic coagulant

Valverde¹,

Paccola²,

Pomini³

et al. 2018

Rev. ambiente água

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This study evaluated the efficiency of coagulation/flocculation, sedimentation and filtration processes using the combination of natural coagulant from Moringa oleifera Lam (MO) and synthetic coagulant aluminum polychloride (PAC) for water treatment. Raw water was obtained from the Pirapó River Basin, Maringá, Paraná State, Brazil. Coagulation/flocculation and sedimentation assays were carried out in a Jar Test. A two-layer rapid filter filled with sand and anthracite was used in the filtration stage. Water quality and therefore the efficiency of the process were determined by means of the analysis of physical, chemical and bacteriological parameters, including the determination of floc size and zeta potential. The utilization of MO contributed to the reduction of the required demand of synthetic coagulant PAC. The association of coagulants, with 80%/20% or 60%/40% of MO/PAC, ensured an improvement of water quality parameters, such as apparent color, turbidity and UV254nm, as well as the possibility of water production with adequate potability standard. Tratamento de água combinado com extrato natural deMoringa oleifera Lam e coagulante sintético RESUMO O presente estudo consistiu em avaliar a eficiência dos processos de coagulação/floculação, sedimentação e filtração, utilizando a associação do coagulante natural obtido de Moringa oleifera Lam (MO) e do coagulante sintético policloreto de alumínio (PAC) para tratamento de água. Foi utilizada água bruta proveniente da bacia do Rio Pirapó, Maringá, PR, Brasil. Os ensaios de coagulação/floculação e sedimentação foram realizados em Jar Test. Na etapa de filtração utilizou-se um filtro rápido de camada dupla de areia e antracito. A Rev. Ambient. Água vol. 13 n. 3, e2135 -Taubaté 2018 2 Karina Cardoso Valverde et al.qualidade da água e a eficácia do processo foram avaliadas por meio da análise de parâmetros físicos, químicos e bacteriológicos, além da determinação do tamanho dos flocos e potencial zeta. A utilização da MO contribuiu para a redução da demanda requerida do coagulante sintético PAC. A associação dos coagulantes com 80%/20% ou 60%/40% de MO/PAC garantiram a melhoria dos parâmetros de qualidade, tais como cor aparente, turbidez e UV254nm, assim como a possibilidade de produção de água com o padrão de potabilidade adequado.Palavras-chave: Moringa oleifera Lam, policloreto de alumínio, tratamento convencional de água.

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Section: Resultsmentioning

confidence: 99%

Combined water treatment with extract of natural Moringa oleifera Lam and synthetic coagulant

Valverde¹,

Paccola²,

Pomini³

et al. 2018

Rev. ambiente água

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“…suggests that thick multilayered peptidoglycan layer in these bacteria regulates bacterial decay while Gram-negative bacteria have much thinner and single layer of peptidoglycan which is more susceptible for decay40.…”

Section: Discussionmentioning

confidence: 99%

Ag/AgO Nanoparticles Grown via Time Dependent Double Mechanism in a 2D Layered Ni-PCP and Their Antibacterial Efficacy

Agarwal

Gupta

Singh

et al. 2017

Sci Rep

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A simple synthesis route for growth of Ag/AgO nanoparticles (NPs) in large quantitative yields with narrow size distribution from a functional, non-activated, Ni (II) based highly flexible porous coordination polymer (PCP) as a template has been demonstrated. This template is a stable storage media for the NPs larger than the pore diameters of the PCP. From EPR study it was concluded that NPs were synthesized via two mechanisms i.e. acid formation and the redox activity of the framework. Size range of Ag/AgO NPs is sensitive to choice of solvent and reaction time. Direct use of Ag/AgO@Ni-PCP shows influential growth inhibition towards Escherichia coli and the pathogen Salmonella typhimurium at extremely low concentrations. The pristine template shows no cytotoxic activity, even though it contains Ni nodes in the framework.

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“…For instance seed extract has been reported to cause a maximum bacterial decay of 93.2% for E. coli and 96.2% for B. subtilis. (Saumyadeb et al 2016) and a 77.27% reduction (Jadhav et al 2008). Though 90-99.9% removal of impurities is reported by moringa seeds, its antimicrobial aspects continue to be researched (Miracle trees 2015).…”

Section: Resultsmentioning

confidence: 99%

A Breakthrough in Water Purification Using an Oligodynamic Metal and Moringa Oleifera Seed

Aj¹

2018

Preprint

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A simple, efficient and stand-alone method for purification of river water using moringa seed powder and copper is discussed. Coagulant property of the seed powder clears turbid raw water and the oligodynamic activity of copper completely destroys E.coli bacteria. Both raw and treated water samples were tested for contaminants to verify the efficacy of the system. Treated water has turbidity in the range 3 NTU -5 NTU and non-detected (< 1 MPN/100 mL) E.coli count making it suitable for drinking. The technique is very cost effective and can be practiced anywhere using locally available materials. It does not require a power source or any technical assistance. Being a stand-alone system the technique exceptionally useful in providing drinking water as an immediate solution in disaster areas affected by cyclone or floods.

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Evaluation of the antimicrobial activity of Moringa oleifera seed extract as a sustainable solution for potable water

Abstract: We have provided a detailed antimicrobial study of the seed extract ofMoringa oleifera, a common medicinal plant.

Cited by 20 publications

References 58 publications

Combined water treatment with extract of natural Moringa oleifera Lam and synthetic coagulant

Combined water treatment with extract of natural Moringa oleifera Lam and synthetic coagulant

Ag/AgO Nanoparticles Grown via Time Dependent Double Mechanism in a 2D Layered Ni-PCP and Their Antibacterial Efficacy

A Breakthrough in Water Purification Using an Oligodynamic Metal and Moringa Oleifera Seed

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