ANTIMICROBIAL AND ANTIOXIDANT ACTIVITY OF SOME TRANSITION METAL COMPLEXES OF TWO LIGANDS DERIVED FROM AMINO ACIDS AND 2 – IMINO – 1 – METHYLIMIDAZOLIDIN – 4 – ONE
DOI:
https://doi.org/10.33003/fjs-2021-0504-702Keywords:
antioxidant; antimicrobial; metal complexes; amino acids; ligands.Abstract
Plant extracts are most of the time used for antioxidant and antimicrobial studies. The Present study was designed to evaluate the activity of metal complexes as antioxidant and against some selected bacterial and fungal isolates. The new metal complexes of Cr (III) and Zn (II) containing ligands derived from Tyrosine, Leucine and 2 – imino – 1 – methylimidazolidin – 4 - one were selected. The test compounds were evaluated for their possible antioxidant activity through free radical scavenging activity via using 1,1 – diphenyl – 2 – picryl – hydrazyl (DPPH) method. All the complexes exhibited good to moderate activity with Cr (III) complex (CrL1) and (CrL2) as the best radical scavengers having the % inhibition value of 67.74 and 65.33 respectively. The complexes were also screened for their antimicrobial activities against two bacterial isolates and one fungal isolate (Streptococcus pneumoniae, Klebsiella pneumoniae and Aspergillus niger). The result showed that all the compounds have the moderate activity against the tested organisms.
References
Agrawal,M.,&Panda, K. (1993). An efficient estimator in post stratification.Metron,51(3-4),179–187.
Bandyopadhyay,S. (1980). Improved ratio and product estimators. Sankhya,42(1-2),45–49.
Chouhan, S. (2012). Improved estimation of parameters using auxiliary information in sample surveys. Unpublished Ph.D.Thesis, VikramUniversity, Ujjain, MP India.
Gamze, Ö. (2015). Modified exponential type estimator for population mean using auxiliary variables in stratified randomsampling.AlphanumericJournal,3(2),49–56.
Holt, D.,and Smith, T. F. (1979). Post stratification. Journal of the Royal Statistical Society: SeriesA(General),142(1),33–46.
Ige,A.,and Tripathi,T. (1989). Estimating of population mean using post stratification and auxiliary information. Abacus,18(2),265–276.
Jagers, P., Oden, A.,anf Trulsson, L. (1985). Post-stratification and ratio estimation: usages of auxiliary information in survey sampling and opinion polls. International Statistical Review/Revue InternationaledeStatistique,221-238.
Johnston,J. P., Halleent, R.M.,&Lezius,D.K. (1972).Effects of span wise rotation on the structure of two-dimensional fully developed turbulent channel flow. Journal of FluidMechanics,56(3),533–557.
Lone,H.A.,and Tailor, R. (2014). Dual to separate ratio type exponential estimator in post-stratification. Journal of Statistics Applications&Probability,3(3),425.
Lone,H.A.,andTailor, R. (2015). Dual to separate product type exponential estimator in post-stratification. Journal of Statistics Applications&Probability,4(3),429.
Lone,H.A., Tailor, R., &Singh, H.P. (2016). Generalized ratio-cum-product type exponential estimator in stratified random sampling Communications in Statistics- TheoryandMethods,45(11),3302–3309.
Tailor, R., and Mishra, A. (2018). Ratio and ratio type separate estimator for population mean when coefficient of variation is known. JOURNAL OF RELIABILITY AND STATISTICAL STUDIES, 11(1),45–5
Singh,H.P.,&Espejo,M.R.(2003).Onlinearregressionandratio–productestimation of a finite population mean. Journal of the Royal Statistical Society: Series D(The Statistician),52(1),59–67.
Srivenkataramana,T. (1980). A dual to ratio estimator in sample surveys. Biometrika, 67(1),199–204.
Vishwakarma, G.K.,& Singh,H.P. (2011). Separate ratio-product estimator for estimating population mean using auxiliary information. Journal of Statistical Theory and ApplicationsISSN,1538,7887.
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