Antimicrobial Fatty Acids from Green Alga Ulva rigida (Chlorophyta)
Joint Authors
Boudabous, Abdelatif
BenRedjem Romdhane, Yosr
Elbour, Monia
Ktari, Leila
Ismail, Amel
Aoun, Brahim
Sadok, Saloua
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This study deals with the antimicrobial potential assessment of Ulva rigida, in regard to collection period and sampling site.
Besides, we assess the chemical composition of bioactive compounds.
For this purpose, Ulva rigida was seasonally collected from two northern sites in Tunisia, Cap Zebib rocky shore (CZ) and Ghar El Melh lagoon (GEM).
Crude organic extracts were prepared using dichloromethane and dichloromethane/methanol and tested against 19 indicator microorganisms using the disk diffusion method and microdilution technique to determine the minimum inhibitory concentration (MIC).
Silica gel column and thin layer chromatography were used for purification of active compounds.
Nuclear magnetic resonance (NMR) and gas chromatography were used for compounds identification.
Samples of Ulva rigida collected from the two sites have uniform antimicrobial activity throughout the year.
Algae collected from the lagoon showed the largest spectrum of activity and were used for subsequent analysis.
Bioguided purification of extracts from Ulva rigida, collected at GEM, leads to 16 active fractions with antibacterial effect mainly against Staphylococcus aureus ATCC 25923 and Enterococcus faecalis ATCC 29212.
These fractions were identified as fatty acids, mainly oleic (C18: 1 w9), linoleic (C18: 2 w6), palmitic (C16: 0), and stearic (C14: 0).
MICs values ranged from 10 to 250 μg/ml.
American Psychological Association (APA)
Ismail, Amel& Ktari, Leila& BenRedjem Romdhane, Yosr& Aoun, Brahim& Sadok, Saloua& Boudabous, Abdelatif…[et al.]. 2018. Antimicrobial Fatty Acids from Green Alga Ulva rigida (Chlorophyta). BioMed Research International،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1125608
Modern Language Association (MLA)
Ismail, Amel…[et al.]. Antimicrobial Fatty Acids from Green Alga Ulva rigida (Chlorophyta). BioMed Research International No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1125608
American Medical Association (AMA)
Ismail, Amel& Ktari, Leila& BenRedjem Romdhane, Yosr& Aoun, Brahim& Sadok, Saloua& Boudabous, Abdelatif…[et al.]. Antimicrobial Fatty Acids from Green Alga Ulva rigida (Chlorophyta). BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1125608
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125608