Showing papers on "Strychnos potatorum published in 2021"
TL;DR: In this paper, a three-dimensional electrochemical reactor with particle electrodes such as Strychnos potatorum was used to treat the emerging pollutants such as metronidazole, chloramphenicol and sulphonamide.
Abstract: The emerging pollutant such as metronidazole, chloramphenicol and sulphonamide were utilized for this research. Three-dimensional electrochemical reactor with particle electrodes such as Strychnos potatorum used to treat the above emerging pollutants. Voltage, pH, initial pollutant concentration and the particle electrode concentration were varied and the optimum conditions for the effective removal was found to be at 9 V, 15 grams of particle electrode and 100 mg/L of initial pollutant concentration. The efficiency of removal was found to be 93.68% for metronidazole, 94.56% for chloramphenicol and 94.11% for sulphonamide under optimum conditions. The air flow was varied to 2 L/min, 3 L/min and 5 L/min, the removal efficiency was found to be 80.24%, 94.12% and 95.26% for the above air flow rates. The comparison of adsorption, two-dimensional electrochemical treatment and three-dimensional electrochemical treatment was done and among them, three-dimensional electrochemical treatment was found to be 18.3% higher when compared to two-dimensional electrochemical treatment The removal efficiency for three-dimensional and two-dimensional treatment were found to be 53.74% and 45.83% in 60 min.
9 citations
TL;DR: In this paper, a plant material (Strychnos potatorum seed powder) has been used as natural coagulants, and tested the ability to remove turbidity from synthetic water and industrial water samples.
Abstract: In this research, a plant material (Strychnos potatorum seed powder) has been used as natural coagulants, and tested the ability to remove turbidity from synthetic water and industrial water samples. The results from industrial water samples were compared with synthetic water samples. Experiments have been conducted in the laboratory to assess the percentage (maximum) of turbidity removal at various levels (i.e., 50, 80, 110, 120, and 145 NTU) from collected and prepared samples. Parameters influencing the coagulation mechanism such as dosage and pH were reported most suitable parameters for maximum turbidity removal. In this regard, the percentage of turbidity removal varies between 46–78% and 50–84% for synthetic and industrial water samples, at an ideal pH level (6–7) respectively. In addition, the isotherm model (i.e., Langmuir and Freundlich) was used to assess the sorption analysis from experimental data sets, wherein the monolayer sorption of contaminants onto the seed powder of S. potatorum was detected. The outcomes highlighted the effect of sorption in the turbidity removal percentage from both synthetic and industrial water samples, advocating the use of S. potatorum as a cost-effective alternative for industrial wastewater treatment.
8 citations
TL;DR: In this article, the suitability of Strychnos potatorum seed flakes (SPSF) on effective removal of diazinon residues in water was investigated.
Abstract: Objectives: Contamination of pesticide residues due to agricultural activities is a major concern of aquatic pollution and most of the agriculture based rural communities in developing countries are still consuming water from those contaminated water bodies. Therefore, development of readily available user-friendly low cost pesticide contaminant removal methods is still in need for above communities. In this study the suitability of Strychnos potatorum seed flakes (SPSF) on effective removal of diazinon residues in water was investigated. Methods: SPSF was prepared and characterized using SEM and FTIR analysis. Batch adsorption studies, isotherm studies and thermodynamic studies were carried out to determine the removal efficiency of diazinon by SPSF. Findings: The maximum removal of diazinon residues (75.9%) was obtained within 10 min at pH 6. Therefore, SPSF are efficient adsorbent for diazinon removal due to fast and efficient removal of diazinon at ambient conditions. The removal of diazinon residues by SPSF was expressed with Langmuir isotherm model. The maximum adsorption capacity of SPSF, obtained from Langmuir isotherm for diazinon adsorption was found to be 2.5mg/g. Thermodynamic studies revealed that the removal of diazinon by the SPSF was spontaneous and exothermic at relatively low temperatures. Novelty: The SPSF adsorbent is a naturally available cost effective and ecofriendly adsorbent which has not been extensively studied for the removal of frequently used pesticides such as diazinon. The findings of the study revealed that the SPSF adsorbent can be considered as a promising remedy for house hold purification of diazinon contaminated waters.
Keywords: Adsorption; diazinon; Strychnos potatorum seed flakes; water
7 citations
TL;DR: The horcolin agglutinin protein in seeds is capable to remove fluoride effectively from drinking water samples due to the presence of its metal binding sites, this study suggests.
Abstract: The aim of the present study is to assess the suitability of Strychnos potatorum L. seed protein for defluoridation of potable water. Protein was isolated from Strychnos potatorum L. seed by using Ammonium sulphate precipitation method and coagulation activity was confirmed. Later the extracted protein was used for defluoridation studies of aqueous fluoride solution and real potable water. The effect of three parameters including pH, time and coagulant dosage of protein on the fluoride removal were studied in fluoride aqueous solution. About 52 potable water samples in and around Kodaikanal were collected from tribal and non-tribal areas and water quality was assessed. The exceeding amount of fluoride among 5 water samples was found when compared with BIS standard for drinking water and subjected to defluoridation process with coagulant protein. Strychnos potatorum L. seed coagulant protein removed about 75% of fluoride from aqueous fluoride solution (2 ppm) by 2 h treatment time, at 6.6 pH with 0.1 g of coagulant dose, treatment. Potable water defluoridation also showed 75% of fluoride reduction with 0.1 g of coagulant dose treatment. Seed characterization was performed using GC–MS and FT-IR, also proteomic studies carried out using MALDI-TOF. The seed coagulant protein showed, horcolin, a lectin type agglutinin protein (15.1 kDa) with 146 amino acid residues. This study suggests, the horcolin agglutinin protein in seeds is capable to remove fluoride effectively from drinking water samples due to the presence of its metal binding sites.
4 citations
04 Jan 2021
TL;DR: The scientific rationale for the use of Strychnos potatorum seeds in traditional medicine and a rich source of phytochemicals having significant antimicrobial activities is provided.
Abstract: Aim: Diseases due to pathogenic microbes pose a great burden on human health and they have been correlated with socioeconomic, environmental, and ecological factors. The threat due to infectious diseases is further intensified by the continued emergence of new and multidrug resistant microorganisms. This scenario warrants a continuous search for antimicrobial agents preferably of plant origin due to their availability, accessibility, and affordability. The present study was aimed to evaluate the antibacterial and antifungal properties of Strychnos potatorum Linn (Nirmali) seeds using common pathogenic bacterial and fungal strains. Methodology: Fresh and matured S. potatorum seeds were used for the present study. The powdered seeds were delipidated with petroleum ether (60-80°C) overnight and the extract was filtered. Soxhalation was performed with 95% ethanol to extract the phyto-ingredients from the seeds. Four Gram positive, four Gram negative, and eight fungal strains were used. The antimicrobial activity was evaluated by disc diffusion and well diffusion methods. The Minimum inhibitory concentration (MIC) Minimum bactericidal concentrations (MBC), Minimum fungicidal concentration (MFC) were assayed. Original Research Article Sharmila et al.; AJRB, 8(1): 1-10, 2021; Article no.AJRB.63861 2 Results: The data obtained through the disc diffusion, well diffusion, the minimum bactericidal concentration, and minimum fungicidal concentrations revealed that the ethanolic extract of the seeds possesses significant antibacterial and antifungal activities. The results obtained were compared with standard drugs widely prescribed for antimicrobial therapy. Conclusion: The present study provides the scientific rationale for the use of Strychnos potatorum seeds in traditional medicine and a rich source of phytochemicals having significant antimicrobial activities.
3 citations
TL;DR: In this article, the authors used natural coagulants such as Strychnos potatorum (nirmali seeds) and Eirchorrnia crassipes (water hyacinth) for dyeing waste water.
Abstract: The research aim is to the treatment of industrial dyeing waste water for the analysis of improved water treatment using natural coagulants. For waste water treatment, natural coagulants such as Strychnos potatorum (nirmali seeds) and Eirchorrnia crassipes (water hyacinth) are used. We have test the various properties of dyeing waste water before and after treatment like pH, sulphates, chlorides, total solids, total suspended solids (TSS), total dissolved solids (TDS), acidity, alkalinity, optimum coagulant dosage (jar apparatus), biological oxygen demand (BOD) and chemical oxygen demand (COD) .The test results showed that natural coagulants produce better results when used alone or in conjunction with the chemical coagulant alum. Since the natural coagulant generates less floc, the cost of sludge treatment is reduced. Water hyacinth outperforms nirmali seed in terms of natural coagulants. Natural coagulants may be used to manage and treat the dyeing waste water, anywhere there is an abundance of it.
17 Oct 2021
TL;DR: A comparative study of various organic coagulants for the treatment of surface water is presented in this article, where water samples are collected from two places like Cooum River in Thiruvallur and Puzhal Lake in Chennai.
Abstract: A comparative study of various organic coagulants for the treatment of surface water is presented in this paper. Organic coagulants like Banana pith (Musa), seeds of Tulsi (Ocimum sanctum), Acorn (Quercus), Drumstick (Moringa oleifera), Clearing nut (Strychnos Potatorum) are studied. The water samples are collected from two places like Cooum River in Thiruvallur and Puzhal Lake in Chennai. This study also involves removing undesirable physical, chemical and biological contaminants from the water. The physical and chemical characteristics of the river water were studied initially. The seeds of Tulsi, Acorn, Drumstick, Clearing nut and pith of banana were powdered to get the seed extracts. Experiments were performed with the seed extracts to evaluate the effects on turbidity, pH, Total dissolved solids, chloride and sulphate concentration and hardness of the river water. All the water samples were analysed and tested in laboratory. The initial turbidity of Cooum river is 38.4NTU and that of Puzhal lake is 84.8NTU. The turbidities of the water samples were reduced to 6.1NTU and 10.9NTU. The organic coagulants were the most efficient expressing the highest coagulation activities, around 75%.
TL;DR: In this paper, the authors compared different types of artificial neural networks which are feedforward artificial neural network (FANN) and nonlinear autoregressive exogenous (NARX) model to predict the efficiency of a cost-effective natural adsorbent Strychnos potatorum Linn seeds on removing reactive orange-M2R dye from aqueous solution.
Abstract: Synthetic dyes used in the textile and paper industries pose a major threat to the environment. In the present research work, the adsorption efficiency of the natural adsorbent Strychnos potatorum Linn (Fam: Loganiaceae) seeds were examined against the reactive orange-M2R dye from aqueous solution by varying the process conditions such as contact time, pH, adsorbent dosage, and initial dye concentration on adsorption of anionic azo dye. This study compares different types of artificial neural networks which are feedforward artificial neural network (FANN) and nonlinear autoregressive exogenous (NARX) model to predict the efficiency of a cost-effective natural adsorbent Strychnos potatorum Linn seeds on removing reactive orange-M2R dye from aqueous solution. Twelve training algorithms of neural network were compared, and the prediction on the adsorption performance of anionic azo dye from aqueous solution using Strychnos potatonum Linn seeds was evaluated by using the root mean squared error (RMSE), mean absolute error (MAE), coefficient of determination (R2), and accuracy. For FANN model, Levenberg–Marquardt (LM) backpropagation with 19 hidden neurons was selected as the optimum FANN model, with R2 of 0.994 and accuracy of 87.20%, 98.21%, and 66.60% for training, testing, and validation datasets, respectively. For NARX model, LM with 8 hidden neurons was selected as the most suitable training algorithm, with R2 value of more than 0.99 and accuracy of 88.00%, 90.91%, and 75.00% for training, testing, and validation datasets, respectively. NARX model accurately predicted the adsorption of anionic azo dye from aqueous solution using Strychnos potatonum Linn seeds with better performance than FANN model.
Journal Article•
TL;DR: In this article, the authors evaluated the antibacterial activity and also screen phytochemicals present in the Strychnos potatorum L.f. Disk diffusion method was used to study the antimicrobial activity against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginos, Enterococci faecalis, Klebsiella pneumonia and Proteus mirabilis.
Abstract: The present research work attempt to evaluate the antibacterial activity and also to screen phytochemicals present in the Strychnos potatorum L.f. Disk diffusion method was used to study the antibacterial activity against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginos, Enterococci faecalis, Klebsiella pneumonia and Proteus mirabilis. In this study, we observed that the samples in different solvent extract had antibacterial activities by formation of inhibitory zone. Qualitative phytochemical analysis of samples in different solvent extract confirms the presence of various phytochemicals like Carbohydrates, Saponins, Tannins, Flavonoid, Alkaloids, Glycosides, Proteins, Phytosterol & Steroids, Phenols, and Terpenoids. The solvent Petroleum ether, Benzene, Acetone, Chloroform, Ethyl acetate and aqueous extract gave good results. In this study we concluded that different solvent extract of Strychnos potatorum L. f showed good antibacterial activity and it may be attributed to the presence of phytochemicals and may be used as antimicrobial agents.