<span style="font-size:15.0pt;line-height: 115%;font-family:Calibri;mso-fareast-font-family:Calibri;mso-bidi-font-family: Mangal;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language: AR-SA" lang="EN-US">Antibacterial activity of <i style="mso-bidi-font-style:normal">Chaetomorpha litorea</i> (harvey) against isolated fish bacteria</span>

Abstract

<span style="font-size:9.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:calibri;mso-bidi-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"="" lang="EN-US">In the present study the methanolic extract of <i style="mso-bidi-font-style:normal">Chaetomorpha litorea</i> (Harvey) was screened for antibacterial activity against the bacterial strains isolated from fish. Antibacterial effect of <i style="mso-bidi-font-style:normal">C. litorea</i> was studied by Minimal Inhibitory Concentration (MIC) method. Result of MIC showed that the methanolic extract of <i style="mso-bidi-font-style:normal">Chaetomorpha litorea</i> expressed its antibacterial activity against isolated fish bacterial strains at lower concentration (50 to 1.562 µg/ml). In order to identify the active principle rendering the antibacterial effect of <i style="mso-bidi-font-style: normal">Chaetomorpha litorea</i>, the preliminary phytochemical screening, HPLC and FT-IR analysis were done. HPLC spectrum showed 19 peaks (1 major and 18 minor), indicating the presence of nineteen components and the FT-IR spectrum indicates the presence of compound with OH and C-H group.</span>