ABSTRACT
Aims: The present study was aimed at investigating the phytoconstituents in order to correlate the folkloric claims with the bioactive compounds present in Casuarina equisetifolia. Also evaluate the antioxidant, antibacterial and cytotoxic property of Casuarina equisetifolia. Methodology: In the present study, the leaf extracts were investigated for different phytochemical groups using specified reagents. Antioxidant activity by following DPPH free radical scavenging study, antibacterial activity by disc diffusion method and cytotoxic activity by Brine shrimp (Artemia salina) lethality bioassay procedures. Results: The qualitative phytochemical screening revealed that the extract contains alkaloids, glycosides, tannins, steroids, etc. The extract showed strong antioxidant activity in DPPH free radical scavenging study (IC50: 25.89μg/mL), while, it showed moderate cytotoxic activity in Brine shrimp (Artemia salina) lethality bioassay study (LC50: 77.98μg/mL). It also showed mild antibacterial activity against both gram positive and gram negative bacteria. Conclusion: The present study tends to suggest the antioxidant, cytotoxic and mild antibacterial activity of MeOH extract of Casuarina equisetifolia.
ABSTRACT
Groundwater quality analyses included pH, EC, cations (Ca2+, Mg2+, Na+, K+, Zn2+, Cu2+, Mn2+, Fe3+ and As3+), anions (CO32-, HCO3-, NO3-, SO42-, PO43- and Cl-) and TDS of northwestern Bangladesh. The samples contained Ca2+, Mg2+ and Na+ as the dominant cations and HCO3- and Cl- were the dominant anions. Ratios of major cations and anions of water samples suggest the predominance of Ca and Mg-containing minerals over Na-containing minerals. According to TDS and SAR values, all samples were classed as 'freshwater' and 'excellent' categories. The SSP of all waters was under 'excellent' and 'good' classes. All samples were within 'soft' class regarding hardness with 'suitable' RSC. Based on As3+, Zn2+, Mn2+, Fe3+, SO42-, NO3- and Cl- all groundwater samples were within the 'safe' limit for drinking but unsuitable for some industries for specific ions.
As análises de qualidade de Lençol de Água incluíram pH, EC, e os cations,(Ca2+, Mg2+, Na+, K+, Zn2+, Cu2+, Mn2+, Fe3+ e As3+), aníons ( CO32-, HCO3-, NO3-, SO42-, PO43- e Cl-e TDS do noroeste do Bangladesh. As amostras continham Ca2+, Mg2+ e Na+ e como o cations dominante HCO3- e Cl foram os aníons dominantes. Segundo o TDS e valores de SAR, todas as amostras foram classificadas como categorias 'de água doce' e 'excelentes'. O SSP de todas as águas foi nas classes 'excelentes' e 'boas'. Todas as amostras foram dentro da classe 'suave' quanto à dureza com RSC 'conveniente'. Baseado As3+, Zn2+, Mn2+, Fe3+, SO42-, NO3- e Cl- - todas as amostras de lençol de água foram dentro do limite 'seguro' como água de bebida mas impróprias para algumas indústrias que emprega íons específicos.