Strychnos potatorum

About: Strychnos potatorum is a research topic. Over the lifetime, 129 publications have been published within this topic receiving 1830 citations.

Studies on the metal binding properties of the seeds of Strychos potatorum linn

Abstract: The seed of irmali tree Strychnos potatorum linn which grows wild in the Vindhyan and southern region of India are lenticular in shape and have previously been studied for their coagulation properties in clarifying turbidwater. This property was attributed to the presence of anionic polyelectrolytes having -COOH and free -OH surface groups that are present in the seed protein. However, the metal binding property of these seeds is of recent interest where some bench scale experiments were conducted at NML in order to establish the binding of metal ions from dilute HCl solutions. The seeds collected from the trees of S. potatorum Linn were ground to 0.5 mm size for experimentation purpose. The binding of different transition metals from aqueous solutions by these seeds was studied for Au (I), Ag (I), Cu (I), Cu (II), Co (II), Ni (II), Pb(II), Zn (II), Fe(II) and Fe (III) by shaking 1.0 g of the powdered seed in a 5% v/v HCl solution containing 50.0 ppm 1.0 ppm of the respective metal ion in a 50 ml solution for 5 min. The filtrate obtained after each experiment was analyzed for the respective metal ions and the results obtained are Au (I)=40.80 ppm; Ag (I)=41.10 ppm; Cu (I) =38.00 ppm; Zn (II) = 41.70 ppm; Fe (II) = 42.10 ppm and Fe (III) = 38.20 ppm. On an average the seeds binds 0.5 mg of the respective metals per 1.0 g of the seed. These seeds were fractionated into three different fractions, namely, fraction A, fraction B and fraction C using solvent extraction, distillation and centrifuging techniques in order to investigate what fraction of the seed is responsible in metal ion binding, and the weight percentages of each fraction were found to be 65%, 5% and 30%, respectively. Fraction A is mostly comprising of carbohydrates and some protein, whereas, fraction C is pure protein. Fractions A and C are found to be equally responsible for the binding of metals.

Defluoridation of drinking water usinglocally available low cost adsorbents

Abstract: A study was conducted to investigate the possibility of removing fluoride from water using low cost adsorbents such as Acacia Catechu, Cuminum cyminum, Coens vettriverodies, Eletaria cardamomum, Phyllanthus embilica, Strychnos potatorum and Tamarindus indica

Natural coagulants: an easy way to remove heavy metalsfrom tannery effluents

Abstract: The seeds of Strychnos potatorum and Moringa oleifera are a natural coagulant which shows promising bioflocculant activity. These seeds are used to purify the drinking water in rural South India. In this research, an attempt has been made to analyze the biosorption of heavy metals by Strychnos potatorum and Moringa oleifera seeds from the tannery effluent. Heavy metals were estimated by atomic absorption spectrophotometer. The toxicity level of the treated effluent was analysed by green gram germination bioassay. Shoot length and root length of the germinated seeds were measured and seedling vigour index were calculated. The heavy metal removal efficiency of the seeds of Moringa and Stychnous was higher there by making both the seeds a promising candidate for industrial effluent treatment. These agro based compound could replace the chemical coagulant and is an environmentally friendly approach to effluent treatment.

Study of strychnos potatoram against water borne pathogens

Abstract: Water is a necessity for our daily life process. But access to clean drinking water is not available to a major population who live in rural areas. They live on open dug wells, pond water etc. In order to provide a clean drinking water, the water is treated using Strychnos potatorum, a seed commonly found in south India. The coagulation activity of the seed is used to coagulate the dirt and also decrease the number of microbes in the water. It also shows activity against Salmonella sps, Klebsiella sps, E. coli and Enterobacter sps. It is also proved that the antimicrobial activity more for the compound obtained from column chromatography than the crude extract obtained through soxhlet. The seed paste when added to water shows vast decrease in microbial count at the concentration of 1.0 c.c.