Isolation and characterization of potential antibiotic producing actinomycetes from water and sediments of Lake Tana, Ethiopia

Gebreyohannes, Gebreselema; Moges, Feleke; Sahile, Samuel; Raja, Nagappan

doi:10.1016/s2221-1691(13)60092-1

Cited by 132 publications

(121 citation statements)

References 40 publications

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“…Antibiotics are among the most important secondary metabolites produced by actinomycetes, and more than 60% of known antibiotics are produced by them (12). In recent years, secondary metabolites, pigments of microorganisms, and their biosynthesis pathways have been the subject of much attention (13).…”

Section: Discussionmentioning

confidence: 99%

Isolation and Identification of Streptomyces ramulosus from Soil and Determination of Antimicrobial Property of its Pigment

2018

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Section: Discussionmentioning

confidence: 99%

Isolation and Identification of Streptomyces ramulosus from Soil and Determination of Antimicrobial Property of its Pigment

2018

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“…The lower aqueous phase was discarded and upper organic phase was concentrated in a in a rotary evaporator at 40°C for 24 hours to obtain the crude extract (Gebreyohannes et al, 2013). The crude extract was then purified using column chromatography.…”

Section: Macroscopic and Microscopic Identification Of The Isolate:-mentioning

confidence: 99%

Antiviral Activity of Secondary Metabolites Produced by Streptomyces Species Isolated From Egyptian Soil.

Gaied¹

2017

IJAR

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“…After 24 hrs incubation, the antibacterial spectrum of the each extracts was examined in terms of zone of inhibition (in millimetres) and measured using transparent ruler. The entire test was done in triplicates to minimize the error 12 .…”

Section: Determination Of Antibacterial Activitymentioning

confidence: 99%

Untitled

2017

IJPSR

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Ballota nigra (Lamiaceae) has been widely used as traditional medicine in many countries for the treatment of neurosedative, antidepressant, antioxidant, antibacterial, insecticidal, anticholinesterase and antifeedant effects. The main objective of this study is to evaluate the antibacterial activity of leaf extracts of Ballota nigra Linn. against five bacterial pathogens. The leaves were extracted in five different organic solvents and their potential were tested against three Gram negative bacteria (Escherichia coli, Salmonella typhi and Salmonella paratyphi) and two Gram-positive bacteria (Micrococcus luteus and Bacillus subtilis) using Agar well diffusion method. The results indicate that most of the extracts showed prominent activity against all the bacterial strains. The methanol extract was most effective with zone of inhibition ranging from 12.20 ± 0.19 to 22.20 ± 0.19 mm for all the tested strains, while chloroform and ethyl acetate shows moderate activity. It clearly depicts that the methanol extract exhibit significant antibacterial activity due to the presence of phyto-constituents. This work can be further explored to in vitro studies for isolation and identifying the potential applications in pharmaceutical industries.

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Isolation and characterization of potential antibiotic producing actinomycetes from water and sediments of Lake Tana, Ethiopia

Cited by 132 publications

References 40 publications

Isolation and Identification of Streptomyces ramulosus from Soil and Determination of Antimicrobial Property of its Pigment

Isolation and Identification of Streptomyces ramulosus from Soil and Determination of Antimicrobial Property of its Pigment

Antiviral Activity of Secondary Metabolites Produced by Streptomyces Species Isolated From Egyptian Soil.

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