Investigations on Antimycobacterial Activity of Some Ethiopian Medicinal Plants (Record no. 41783)

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control field MX-MdCICY
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control field 20250625124701.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-7454
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245 10 - TITLE STATEMENT
Title Investigations on Antimycobacterial Activity of Some Ethiopian Medicinal Plants
490 0# - SERIES STATEMENT
Volume/sequential designation Phytotherapy Research, 15(4), p.323-326, 2001
520 3# - SUMMARY, ETC.
Summary, etc. Fifteen crude extracts prepared from seven Ethiopian medicinal plants used to treat various infectious diseases were assessed for their ability to inhibit the growth of Mycobacterium tuberculosis. A preliminary screening of the crude extracts against M. tuberculosis typus humanus (ATCC 27294)was done by dilution assay using Lo¨wenstein-Jensen medium. None of the tested extracts except the acetone fraction obtained from the stem bark of Combretum molle (R. Br. ex G. Don.)Engl & Diels (Combretaceae)showed significant inhibitory action against this strain. The acetone fraction of the stem bark of C. molle caused complete inhibition at concentrations higher than 1 mg/mL. Phytochemical analysis of the bioactive fraction led to the isolation of a major tannin and two oleanane-type pentacyclic triterpene glycosides. The tannin was identified as the ellagitannin, punicalagin, whilst the saponins were characterized as arjunglucoside (also called 4-epi-sericoside)and sericoside. All the pure compounds were further tested against the ATCC strain. Punicalagin was found to inhibit totally growth of the ATCC and also of a patient strain, which was fully sensitive to the standard antituberculosis drugs, at concentrations higher than 600 g/mL and 1.2 mg/mL, respectively. On the other hand, the saponins failed to show any action on the ATCC strain. It appears that our findings are the first report of tannins exhibiting antimycobacterial activity.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Asres, K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Bucar, F.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Edelsbrunner, S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Kartnig, T.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Höger, G.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Thiel, W.
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Uniform Resource Identifier <a href="https://drive.google.com/file/d/1S-zcP7XFui9bqh8E4Yo2v6Ss_Ywximo2/view?usp=drivesdk">https://drive.google.com/file/d/1S-zcP7XFui9bqh8E4Yo2v6Ss_Ywximo2/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-7454 25.06.2025 25.06.2025 Documentos solicitados