Nature Environment and Pollution Technology

M. J. Daisy ¹, A. R. Raju ¹, M. P. Subin ¹

Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Distt. Thrissur, Kerala, IN

Abstract

In the present work, qualitative phytochemical analysis and in vitro antibacterial activity of the different component extracts of Acmella ciliata and lchnocarpus furtescens against Escherichia coli and Bacillus subtilis were studied. Extracts were prepared in methanol and water. Antibacterial activity was compared with control and standard antibiotic ampicillin. Both the plant species exhibited antibacterial activity against the test pathogenic bacteria. However, methanolic leaf extracts of Acmella ciliata was found to have maximum number of bioactive components and highest zone of inhibition against both the test bacteria and therefore as per the present study, methanolic leaf extract of A. ciliata is indeed the potential antibacterial agent against B. subtilis and E. coli.

Keywords

Acmella ciliata, Ichnocarpus frutescens, Plant Extracts, Antibacterial Activity.

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C. J. Kamya ¹, A. R. Raju ¹, M. P. Subin ¹

Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Distt. Thrissur, Kerala, IN

Abstract

Methanol and water extracts of leaf, stem and ischolar_main of Euphorbia hirta Linn. and Tiliacora acuminata Miers. were screened for their phytochemical compounds and in vitro antibacterial activity against two medically important pathogenic bacteria namely Staphylococcus aureus and Pseudomonas fluorescens. Phytochemical screening reveals the presence of several phytoconstituents in both the plant species and many of these have been investigated scientifically for antimicrobial activity. In vitro antibacterial study was done using Agar Well Diffusion method, and the study reveals the methanol leaf extracts of E. hirta and methanol ischolar_main extracts of T. acuminata recorded highest activity against both the test organisms.

Keywords

Phytochemical Analysis, Antibacterial Activity, Pathogenic Bacteria, Plant Extracts.

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A. R. Raju ¹, C. T. Anitha ¹, P. D. Sidhimol ¹, K. J. Rosna ¹

Affiliations
1 Department of Botany, Sree Narayana College, Nattika-680 566, Trissur, Kerala, IN

Abstract

Phytoremediation is a novel, efficient, ecofriendly, low priced and an emerging method of biotechnology for environmental pollution management. In this technology, plants are used to improve the status of environment. In this work, an attempt has been made to remove organic and inorganic pollution load of domestic wastewater. A culture of aquatic plant, Lemna minor was grown in the pond water. Water from the same pond was filled in a cement tank and Lemna was grown for a stipulated interval of seven days. The domestic wastewater quality was evaluated before and after the culture by analysing its physicochemical properties in order to know the improvement in quality of water. The results of analysis show that phytoremediation of wastewater occurs more rapidly in tank water as compared to the pond water. The increase in biomass of Lemna minor and the physicochemical analysis have proved that Lemna minor is a suitable aquatic plant for phytoremediation of domestic wastewater, which improved the quality of domestic wastewater by absorbing organic and inorganic pollutants.

Keywords

Phytoremediation, Domestic Wastewater, Lemna minor, Biotechnology, Pollution Management.

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