Analytics on Antimicrobial Activity of Lichen Extract
Lichen has a great medicinal value and represents the symbiotic relationship between fungi and algae or cyanobacteria. The genus Usnea longissima(Parmeliaceae), is a fruticose lichen with numerous biological activities like antimicrobial, antifungal and inhibitory activities for plant and human path...
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| Format: | Article |
| Language: | English |
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Journal of Pure and Applied Microbiology
2021-06-01
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| Series: | Journal of Pure and Applied Microbiology |
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| Online Access: | https://microbiologyjournal.org/analytics-on-antimicrobial-activity-of-lichen-extract/ |
| _version_ | 1818738335616598016 |
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| author | Hitendra Yadav Sanjeeva Nayaka Manish Dwivedi |
| author_facet | Hitendra Yadav Sanjeeva Nayaka Manish Dwivedi |
| author_sort | Hitendra Yadav |
| collection | DOAJ |
| description | Lichen has a great medicinal value and represents the symbiotic relationship between fungi and algae or cyanobacteria. The genus Usnea longissima(Parmeliaceae), is a fruticose lichen with numerous biological activities like antimicrobial, antifungal and inhibitory activities for plant and human pathogens. Taxonomically it is well distinguished by pale greenish to yellowish-green colour and pendulous thallus with dense branches usually emerging from the main stem. Its fungal partner releases an extracellular compound called Usnic acid, a derivative of Dibenzofuran which is a naturally occurring secondary metabolite. In the present work, antimicrobial activities of Usnea longissimi are explored in various extraction solvents. The crude extracts were prepared in methanol, ethanol, ethyl acetate, acetone and different concentrations (2.5,5,10,15,20mg/ml) followed by the determination of its antimicrobial activity against various microbes viz. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Fusarium oxysporum using agar well diffusion process. The maximum zone of inhibition was observed in the 15 mg/ml methanolic extract for Escherichia coli (34 mm), 10 mg/ml methanolic extract for Staphylococcus aureus (30 mm), 10 mg/ml ethyl acetate for Pseudomonas aeruginosa (16 mm) and 0.5 mg/ml ethanolic extract for Fusariumoxysporium (14 mm). Usnea longissimi have shown significant antibacterial and antifungal activity that encourage us to explore novel antimicrobial components within lichen biodiversity. These lichens further can be used as food supplements to cure various human diseases. |
| first_indexed | 2024-12-18T01:07:18Z |
| format | Article |
| id | doaj.art-15a7d12e2cb14e85b949224b9ee3c7af |
| institution | Directory Open Access Journal |
| issn | 0973-7510 2581-690X |
| language | English |
| last_indexed | 2024-12-18T01:07:18Z |
| publishDate | 2021-06-01 |
| publisher | Journal of Pure and Applied Microbiology |
| record_format | Article |
| series | Journal of Pure and Applied Microbiology |
| spelling | doaj.art-15a7d12e2cb14e85b949224b9ee3c7af2022-12-21T21:26:12ZengJournal of Pure and Applied MicrobiologyJournal of Pure and Applied Microbiology0973-75102581-690X2021-06-0115270170810.22207/JPAM.15.2.21Analytics on Antimicrobial Activity of Lichen ExtractHitendra YadavSanjeeva NayakaManish Dwivedihttps://orcid.org/0000-0001-5217-9039Lichen has a great medicinal value and represents the symbiotic relationship between fungi and algae or cyanobacteria. The genus Usnea longissima(Parmeliaceae), is a fruticose lichen with numerous biological activities like antimicrobial, antifungal and inhibitory activities for plant and human pathogens. Taxonomically it is well distinguished by pale greenish to yellowish-green colour and pendulous thallus with dense branches usually emerging from the main stem. Its fungal partner releases an extracellular compound called Usnic acid, a derivative of Dibenzofuran which is a naturally occurring secondary metabolite. In the present work, antimicrobial activities of Usnea longissimi are explored in various extraction solvents. The crude extracts were prepared in methanol, ethanol, ethyl acetate, acetone and different concentrations (2.5,5,10,15,20mg/ml) followed by the determination of its antimicrobial activity against various microbes viz. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Fusarium oxysporum using agar well diffusion process. The maximum zone of inhibition was observed in the 15 mg/ml methanolic extract for Escherichia coli (34 mm), 10 mg/ml methanolic extract for Staphylococcus aureus (30 mm), 10 mg/ml ethyl acetate for Pseudomonas aeruginosa (16 mm) and 0.5 mg/ml ethanolic extract for Fusariumoxysporium (14 mm). Usnea longissimi have shown significant antibacterial and antifungal activity that encourage us to explore novel antimicrobial components within lichen biodiversity. These lichens further can be used as food supplements to cure various human diseases.https://microbiologyjournal.org/analytics-on-antimicrobial-activity-of-lichen-extract/usnea longissimathallus extractusnic acidantimicrobiallichen |
| spellingShingle | Hitendra Yadav Sanjeeva Nayaka Manish Dwivedi Analytics on Antimicrobial Activity of Lichen Extract Journal of Pure and Applied Microbiology usnea longissima thallus extract usnic acid antimicrobial lichen |
| title | Analytics on Antimicrobial Activity of Lichen Extract |
| title_full | Analytics on Antimicrobial Activity of Lichen Extract |
| title_fullStr | Analytics on Antimicrobial Activity of Lichen Extract |
| title_full_unstemmed | Analytics on Antimicrobial Activity of Lichen Extract |
| title_short | Analytics on Antimicrobial Activity of Lichen Extract |
| title_sort | analytics on antimicrobial activity of lichen extract |
| topic | usnea longissima thallus extract usnic acid antimicrobial lichen |
| url | https://microbiologyjournal.org/analytics-on-antimicrobial-activity-of-lichen-extract/ |
| work_keys_str_mv | AT hitendrayadav analyticsonantimicrobialactivityoflichenextract AT sanjeevanayaka analyticsonantimicrobialactivityoflichenextract AT manishdwivedi analyticsonantimicrobialactivityoflichenextract |