Short report
Antifungal activity of Agapanthus africanus extractives
D.N. Singh
a,c,
⁎
, N. Verma
c
, S. Raghuwanshi
b
, P.K. Shukla
b
, D.K. Kulshreshtha
a
a
Process and Medicinal Chemistry Division, Central Drug Research Institute, Lucknow-226001, India
b
Fermentation Technology Division, Central Drug Research Institute, Lucknow-226001, India
c
K.S. Saket PG College, Dr. Ram Manohar Lohia Avadh University Faizabad-224001, India
Received 21 June 2006; accepted 14 December 2007
Available online 9 February 2008
Abstract
The ethanolic extract of the rhizomes of Agapanthus africanus showed antifungal activity. In bioassay guided fractionation, n-
butanol fraction exhibited significant activity against human pathogens. A saponin, (25R)-spirost-7-en-2α,3β,5α-triol-3-O-[α-L-
rhamnopyranosyl(1→2)-[β-D-galactopyranosyl (1→3)] β-D-glucopyranoside (1), responsible for the antifungal activity and having
MIC value of 15.6 μg/ml against Trychophyton mentagrophytes and Sporothrix schenekii, was isolated and identified as active
constituent of the plant.
© 2008 Elsevier B.V. All rights reserved.
Keywords: Agapanthus africanus; Spirostan saponin; Antifungal activity
1. Plant
Agapanthus africanus L. Hoffm. (Liliaceae), rhyzomes collected in March 1995 from Ootagamund (Tamil Nadu)
was authenticated by Botany Division, Central Drug Research Institute, Lucknow, where a voucher specimen has been
preserved.
2. Uses in traditional medicine
No report.
3. Previously isolated constituents
Sapogenins [1–5].
Fitoterapia 79 (2008) 298 – 300
www.elsevier.com/locate/fitote
⁎
Corresponding author. K.S. Saket PG College, Dr. Ram Manohar Lohia Avadh University, Faizabad-224001, India. Tel.: +91 94151 88503.
E-mail address: dnsinghsaket@yahoo.com (D.N. Singh).
0367-326X/$ - see front matter © 2008 Elsevier B.V. All rights reserved.
doi:10.1016/j.fitote.2007.12.004