کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2584141 1130716 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Production and characterization of antimicrobial active substance from the cyanobacterium Nostoc muscorum
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
Production and characterization of antimicrobial active substance from the cyanobacterium Nostoc muscorum
چکیده انگلیسی

In this investigation, the cyanobacterium Nostoc muscorum exhibited antagonistic activity against Gram-positive and Gram-negative bacteria and filamentous fungi. The results indicated that the active substance produced maximally after 12 days of incubation in shaken culture at 35 °C, at pH 8.0 in BG-11 medium. The increase in nitrate concentration of the medium led to an increase in the antimicrobial production. Chloroform was the best solvent for extracting the active material. The antagonistic material was purified using thin layer chromatography. The compound showed maximum absorption at 240 nm. Infrared (IR) and nuclear magnetic resonance (NMR) indicated presence of γOH, γCH aromatic, γCH aliphatic, γCN, γCO, γCC and CO. Mass spectroscopy indicated that its molecular weight is 279. The results also indicated that the compound is phenolic compound.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Toxicology and Pharmacology - Volume 21, Issue 1, January 2006, Pages 42–50
نویسندگان
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