Microbial Contamination of Some Antidiabetic Herbal Preparations Available in Bangladesh | Chapter 10 | Recent Advances in Biological Research Vol. 6
Herbal Medicines (HM) are being used in
our country for a long time but the type
and load of the microbial agents has not been isolated in locally produced
finished products of HM. The present study was designed to assess the microbial
load, genus & species of the microbes contaminating with HM. Seven
different Antidiabetic Herbal Preparations (ADHPs) were purchased randomly and
analyzed for microbial contaminants. Blood agar, Mac Conkey agar, Chocolate
agar and Saboraud’s dextrose agar were used (Oxoid) for culturing and isolation
of bacteria and fungus. Identification of organisms were done as standard ways.
Total aerobic bacterial plate count was done as per the method of Brown, Poxton
and Wilkinson. Out of 07 anti diabetic solid and liquid samples, except ADHP-3,
Bacillus subtilis (3.5 – 4.0 x 104 cfu/g) was isolated from solid ADHPs and
Enterococcus spp. (1.0x104 cfu/ml) was isolated from liquid ADHP, but all
samples were free from fungi (yeasts and moulds). However presence of bacteria
in these samples indicates the possibility of increased number of bacteria. So,
the sample should be handled in any step maintaining standard sterility of the
environment, instrument and involved personnel. The result of present study
showed the contamination rate within tolerable level but the presence of
bacteria in these samples was not desirable.
Author(s) Details
Dr. Md. Ranzu Ahmed
Department of Chemistry,
Bangladesh University of Health Sciences (BUHS), Dhaka, Bangladesh and
Department of Applied Chemistry and Chemical Engineering, University of
Rajshahi, Rajshahi, Bangladesh.
Prof. Dr. S. M. Z. H. Asna
Department of Microbiology,
Bangladesh University of Health Sciences (BUHS), Dhaka, Bangladesh.
Prof. Dr. Begum Rokeya
Department of Pharmacology,
Bangladesh University of Health Sciences (BUHS), Dhaka, Bangladesh.
Professor Dr. M. Abu Sayeed
Department of Applied
Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi,
Bangladesh.
Emeritus Professor Dr. M.
Mosihuzzaman
International Centre for
Natural Product Research (ICNPR), BUHS, Dhaka, Bangladesh.
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