The Effect of Algal Extract of Spirulina Platensis, Cladophora Glomerata on Some Positive and Negative Bacterial Isolates of Gram Stain

Volume 19 No 6 (2021)

Zainab Abd Ameer Mohammed , Haifaa M. Jawad , Nada Mohammed Reda

DOI: 10.14704/nq.2021.19.6.NQ21070

Abstract

This study examines the efficacy of the algal alcoholic extract isolated from Cladophora Spirulina platensis and glomerata and testing their efficacy against positive bacteria of Gram stain Staphylococcus aureus and the negative bacteria for Escherichia coli and Klebislla sp. The organic solvent ethanol was used at 95%. The efficacy of the extract was tested against some strains of positive and negative bacteria of Gram stain. The results of the extract showed that the positive bacteria of Gram stain has sensitivity towards the extract higher than the negative bacteria. The highest inhibitory efficacy against Staphylococcus aureus by inhibitive diameter zone of 20 mm and less inhibitive against negative bacteria E.coli by inhibitive diameter of 16 mm.

Keywords

Cladophora, Spirulina, Platensis, Glomerata.

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