Stephen T Odonkor et al./ Elixir Pharmacy 40 (2011) 5499-5503 5499
Introduction
Over the past decade, the use of herbal medicine/medicinal
plants for medical treatments, has increased tremendously and
has become increasing popular in both developing and develop
countries (Eisenberg et al., 1998). Herbal medicines are often
used to provide first line and basic health services to both the
people living in remote areas where it is the only available
health service and to people living in poor areas where it offers
the only alternative medicine remedy (Reddy, Ansari &
Shivkumar, 2000).
WHO has described traditional medicine as one of the
surest means to achieve total health care coverage of the world's
populationn pursuance of its goal of providing accessible and
culturally acceptable health care for the global population (green
paper). To this effect, WHO has championed the rational and
responsible use of traditional plant based medicines, by member
states and has developed technical guidelines for the assessment
of herbal medicine (WHO, 1998; WHO, 2000).
Developing countries undoubtedly rely heavily on non-
conventional medicines mainly of herbal sources in their
primary healthcare (Akerele, 1993; WHO, 1998).
This is justifiable so because developing countries like
Ghana has extraordinary richness of its flora, wide range of
species. In the developing world, herbal medicine as an ultimate
medicine has gained popularity because of typically low side
effect profiles (Wilt et al.,2000), low cost (Vanderhoof, 2001)
and high level of acceptance by patients and the majority of the
population. Some managed care organizations now offer these
therapies as an expanded benefit (Langyan &Ahuja, 2005).
In Ghana the uses of herbal medicine is premised upon
high cost of the conventional pharmaceutical dosage forms,
inaccessibility of the orthodox medical services to a vast
majority of people particularly in the rural areas and the
reservations by the public due to some reports , substandard or
counterfeit drugs in the market.
Product quality is obviously the major criteria that could
affect not only the efficacy but also the safety of patients or
consumers of herbal products (Jutaputti, 2001). A numbers of
identifiable problems are associated with the use of herbal
medicines which include lack of precise dose and unhygienic
method of preparation. Microbial contamination frequently
involves in herbal products is not only as a result of unhygienic
preparation but also from plants. Therefore, microbial contents
in herbal products should be evaluated. This accounts for the
reason why WHO has developed technical guidelines for the
assessment of herbal medicine (WHO, 1998; WHO, 2000).
These guidelines are important because, unlike chemically
defined medicinal products, the biopharmaceutical quality and
behavior of HMPs are often not well documented (European
Agency for the Evaluation of Medicinal Products, 2003).
The WHO Good Manufacturing Practice Guidelines have
provided technical guidelines to national regulatory authorities,
scientific organizations, and manufacturers to undertake an
assessment of the documentation/submission/dossiers in respect
of herbal medicinal products.
In Ghana the food and drugs board is responsible for drug
administration and control of the quality of medicinal products
including generally available in the market.
Elixir Pharmacy 40 (2011) 5499-5503
Microbiological quality of some herbal medicinal products sold in Accra,
Ghana
Stephen T Odonkor
1
, Juliet Osei
2
, Alfred K Anim
2
, Cynthia Laar
2
and Mavis Okyere
3
1
Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission P. O. Box LG 80, Legon-Accra, Ghana
2
Nuclear Chemistry and Environmental Science Research Center, National Nuclear Research Institute of the Ghana Atomic Energy
Commission P. O. Box LG 80, Legon-Accra, Ghana.
3
National Blood Transfusion Service P. O. Box KB 78, Korle-Bu, Accra.
ABSTRACT
The aim of this study was to investigate the microbial quality of 10 different Herbal
Medicinal Products (HMPs) sourced sampled from traditional medicine distributors and
retail pharmacy outlets in Accra, Ghana. A total of 10 herbal medicinal products that were
made for in vitro administration were randomly sampled in triplicates for analysis. Microbial
Count was performed on the products. Isolation and identification various microbes from
herbal medicinal samples were done also done. The results show that all of the products had
their manufacturing and expiry dates stated, 5 (50%) products have been registered by FDB.
The microbial load of the products varied considerably. The lowest microbial count was 2.2
x10
3
cfu/ml and the highest count was 6.2 x10
3
cfu/ml. Two (20%) of the products showed
no bacteria growth. The predominant organism isolated was Staphylococcus aureaus and
Bacillus spp. Only one sample had fungi isolate from it. However, E. coli, Klebsiella spp
and Salmonella spp was not isolated in any of the 10 samples. There is need for constant
monitoring and control of the standards of herbal medicines products in the Ghanaian
market.
© 2011 Elixir All rights reserved.
Pharmacy
ARTICLE INFO
Article history:
Received: 9 September 2011;
Received in revised form:
31 October 2011;
Accepted: 16 November 2011;
Keywords
Herbal medicine,
Bacteria count,
Isolates,
Contamination.
Available online at www.elixirjournal.org
Tele:
E-mail addresses: stodonkor@yahoo.co.uk
© 2011 Elixir All rights reserved