NDLI: Chemical and antimicrobial analysis of husk fiber aqueous extract from Cocos nucifera L.

Please wait, while we are loading the content...

Chemical and antimicrobial analysis of husk fiber aqueous extract from Cocos nucifera L.

Content Provider	Semantic Scholar
Author	Silva, Davi Oliveira E Martins, Gabriel R. Silva, Antônio J. R. Da Alviano, Daniela Sales Nascimento, Rodrigo Pires Do Kaplan, Maria Auxiliadora C. Alviano, Celuta Sales
Copyright Year	2013
Abstract	Cocos nucifera L. (Arecaceae) is a widely distributed species around the tropical areas. Popular uses have been reported in the treatment of arthritis and diarrhea. This study evaluates the antimicrobial activity of husk fiber aqueous extract from C. nucifera and performed the identification of some biological active substances. The minimal inhibitory concentration (MIC) against human pathogen microorganisms was determined. Chromatographic and spectrometric procedures were also performed to isolate and identify the components present in the extract. In the MIC assay of crude aqueous extract, only the methicillin sensible and the resistant (MRSA) Staphylococcus aureus strains were susceptible at 156 μg/mL. The ethyl acetate partition taken from crude extract was more promising (MIC of 78 μg/mL). No fungal growth inhibition was observed. Catechin, epicatechin, two procyanidin dimers and condensed tannins were found in the organic phase. In addition, gallic and ellagic acids were detected for the first time in C. nucifera husk fiber. Gallic acid showed MIC of 39 μg/mL and minimal bactericidal concentration (MBC) at 78 μg/mL. Ellagic acid was not active against the tested strains, as well as catechin and epicatechin. Additionally catechin, epicatechin, two procyanidin dimers and condensed tannins were also detected. The antimicrobial activity observed was selective to S. aureus strains. Keywords : Antimicrobial analyses, Cocos nucifera , arecaceae, ellagic acid, gallic acid, procyanidins, Staphylococcus aureus strains African Journal of Biotechnology Vol. 12(18), pp. 2478-2483
File Format	PDF HTM / HTML
Volume Number	12
Alternate Webpage(s)	https://www.ajol.info/index.php/ajb/article/viewFile/129715/119281
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in