Merlin Lincoln Kwao Mensah
Department of Herbal MedicineLife SciencesHealth SciencesPhysical Sciences

Merlin Lincoln Kwao Mensah

48 Publications22 Research Themes28 Open Access
Research Overview & Focus

The researcher's work centers on the comprehensive study of traditional Annonaceae plants in Ghana, exploring their chemical properties, functional uses, and safety implications across multiple domains, including pharmacology, toxicology, and biochemistry.

Faculty Biography

He had his undergraduate education at the then UST (now KNUST) for the Pharmacy (B. Pharm. Hons.) degree (1970 -1974.). He studied for his PhD at Nottingham University (UK) in Pharmacy and Botany. He returned to Ghana and began his career as a lecturer in the Department of Pharmacognosy in 1983. He had had a stint in the Department as a Teaching Assistant / National Service person in the Department. He transferred to the Department of Herbal Medicine after its inception in 2002. He is a fellow of the West African Postgraduate College of Pharmacists, the Pharmaceutical Society of Ghana and the Ghana College of Pharmacists. He was first Head, Department of Herbal Medicine (Oct. to Dec. 2005) and then Dean of Students of KNUST (2006-2009). Before then, he was the Coordinator, Herbal Medicine Programme (Oct. 2004 to Sept. 2005) and before that, the Head, Department of Pharmacognosy (2001-2003).Teaching areas: Pharmacognosy, Botany of medicinal plants, Phytochemistry, Evaluation of medicinal plant products, Poisons of plant origin, History of traditional medicine, Phytotherapy, Policy, Regulation and Ethics in traditional medicine. He has also served the nation on Committees of the Ministry of Health to draft policy documents on Traditional Medicine, Training Manuals for Herbalists, and on a Committee of the Food and Drugs Authority to draft guidelines for registration of herbal medicines in Ghana. He has served on the WHO (AFRO) Committee of Experts on Traditional Mediciine.

Key Research Themes (22)
Life Sciences

African Botany and Ecology Studies

Health Sciences

Complementary and Alternative Medicine Studies

Health Sciences

Diverse Scientific Research Studies

Life Sciences

Drug-Induced Hepatotoxicity and Protection

Life Sciences

Essential Oils and Antimicrobial Activity

Life Sciences

Ethnobotanical and Medicinal Plants Studies

Physical Sciences

Heavy Metals in Plants

Health Sciences

Liver Disease Diagnosis and Treatment

Health Sciences

Malaria Research and Control

Health Sciences

Nail Diseases and Treatments

Health Sciences

Natural Antidiabetic Agents Studies

Life Sciences

Natural product bioactivities and synthesis

Health Sciences

Phytochemicals and Medicinal Plants

Physical Sciences

Phytochemistry and Bioactive Compounds

Life Sciences

Phytochemistry and Bioactivity Studies

Life Sciences

Phytochemistry and Biological Activities

Life Sciences

Plant Pathogens and Fungal Diseases

Life Sciences

Seed and Plant Biochemistry

Life Sciences

Sesquiterpenes and Asteraceae Studies

Life Sciences

Synthesis and bioactivity of alkaloids

Life Sciences

Traditional and Medicinal Uses of Annonaceae

Health Sciences

Zoonotic diseases and public health

Publications (48)

Medicinal plant extracts modulate antibiotic activity against multidrug-resistant bacteria and Candida albicans

Open Access
2025Essential Oils and Antimicrobial ActivityDOI: 10.1007/s44372-025-00315-z

Antimicrobial Activity of Some Plant Extracts and Their Interaction with Standard Antibiotics

Open Access
2025Essential Oils and Antimicrobial ActivityDOI: 10.21203/rs.3.rs-6285851/v1

Antimalarial activity of the aqueous extract and anthraquinones from the root of Senna siamea (LAM) H.S. Irwin & Barneby (Fabaceae).

Open Access
2025Essential Oils and Antimicrobial ActivityDOI: 10.1016/j.sciaf.2025.e02579

Antimicrobial activity, toxicity and retrospective clinical effectiveness of Kantinka BA and Kantinka Herbaltics, two multi-component-herbal products used in the management of infectious diseases in Ghana

Open Access
2024Ethnobotanical and Medicinal Plants StudiesDOI: 10.4081/idhm.2024.389

Comparative clinical study of Mist Amen Fevermix and Edhec Malacure: two polyherbal products used for the treatment of uncomplicated malaria in Ghana against Artemether/Lumefantrine

Open Access
2024Ethnobotanical and Medicinal Plants StudiesDOI: 10.1186/s40816-024-00373-y

Antiplasmodial activity and toxicity of the leaves, stem and roots of Parinari robusta Oliv [CHRYSOBALANACEAE] in animal model

2024Malaria Research and ControlDOI: 10.1016/j.sajb.2024.03.007

Transdisciplinary collaborations to highlight media advocacy on climate change impacts on medicinal plants: Evidence from content analysis, and recommendations for action

Open Access
2023Zoonotic diseases and public healthDOI: 10.1016/j.joclim.2023.100215

Antibacterial, Antibiofilm, and Efflux Pump Inhibitory Properties of the Crude Extract and Fractions from Acacia macrostachya Stem Bark

Open Access
2021Essential Oils and Antimicrobial ActivityDOI: 10.1155/2021/5381993

Quality assessment and clinical evaluation of the safety and effectiveness of a Ghanaian hepatorestorative polyherbal product (HPK) at the Wa Regional Hospital

2021Drug-Induced Hepatotoxicity and Protection

Treatment of Malaria Infection and Drug Resistance

Open Access
2021Malaria Research and ControlDOI: 10.5772/intechopen.98373

Utilization of Plants for Medicinal Purposes and Concerns with Endangered Plant Species from Ghana

Open Access
2021Ethnobotanical and Medicinal Plants StudiesDOI: 10.18502/tim.v6i1.5926

Clinical Evaluation of the Safety and Effectiveness of <i>Heptonica</i>: A Ghanaian Hepatorestorative Polyherbal Product

Open Access
2020Liver Disease Diagnosis and TreatmentDOI: 10.1155/2020/9596182

Hypotensive and Antihypertensive Properties and Safety for Use of <i>Annona muricata</i> and <i>Persea americana</i> and Their Combination Products

Open Access
2020Traditional and Medicinal Uses of AnnonaceaeDOI: 10.1155/2020/8833828

Evaluation of the Microbial Load and Heavy Metal Content of Two Polyherbal Antimalarial Products on the Ghanaian Market

Open Access
2020Heavy Metals in PlantsDOI: 10.1155/2020/1014273

An open label clinical study evaluating the effectiveness of a cryptolepis sanguinolenta based herbal antimalarial agent

2019Synthesis and bioactivity of alkaloids

Phytochemistry, proximate and antioxidant properties of some indigenous leafy vegetables

Open Access
2019Seed and Plant BiochemistryDOI: 10.30574/wjarr.2019.3.1.0044

Clinical Evaluation of Efficacy of a Herbal Formulation Used in the Treatment of Malaria

Open Access
2019Diverse Scientific Research StudiesDOI: 10.9734/ejmp/2019/v27i330117

Toxicity and Safety Implications of Herbal Medicines Used in Africa

Open Access
2019Ethnobotanical and Medicinal Plants StudiesDOI: 10.5772/intechopen.72437

Appraisal of the Constituent Plant Materials in a Ghanaian Antifungal Herbal Product; An in vitro Interactive Combination Analysis and a Pilot Clinical Study to Determine Efficacy.

Open Access
2019Essential Oils and Antimicrobial Activity

Identifying strengths and weaknesses of the integration of biomedical and herbal medicine units in Ghana using the WHO Health Systems Framework: a qualitative study

Open Access
2018Complementary and Alternative Medicine StudiesDOI: 10.1186/s12906-018-2334-2

Antiplasmodial Securinega alkaloids from Phyllanthus fraternus: Discovery of natural (+)-allonorsecurinine

2017Phytochemistry and Bioactivity StudiesDOI: 10.1016/j.tetlet.2017.08.045

Antileishmanial and Trypanocidal Activities of Extracts and Aporphine Alkaloids Isolated from Monodora Genus (Annonaceae)

Open Access
2017Traditional and Medicinal Uses of AnnonaceaeDOI: 10.4172/2472-0992.1000136

Clinical Evaluation of the Safety and Effectiveness of Adutwumwaa Malamix: A Polyherbal Product for the Treatment of Uncomplicated Malaria in Ghana

Open Access
2017African Botany and Ecology StudiesDOI: 10.7324/japs.2017.70706

Antiplasmodial activity of selected medicinal plants used to treat malaria in Ghana

2016Phytochemistry and Bioactivity StudiesDOI: 10.1007/s00436-016-5080-8

Prenylated indole alkaloids from the stem bark of Hexalobus monopetalus

2016Natural product bioactivities and synthesisDOI: 10.1016/j.phytol.2016.03.012

The Antimalarial Potential of Three Ghanaian Medicinal Plants

Open Access
2015Diverse Scientific Research StudiesDOI: 10.5281/zenodo.8366366

Medicinal plants and finished marketed herbal products used in the treatment of malaria in the Ashanti region, Ghana

2015Ethnobotanical and Medicinal Plants StudiesDOI: 10.1016/j.jep.2015.06.041

A randomized double-blind study evaluating the safety and effectiveness of a Ghanaian polyherbal product for the management of superficial mycoses

2015Nail Diseases and TreatmentsDOI: 10.1016/j.hermed.2015.06.001

A Novel Triterpene from the Roots of <i>Paullinia pinnata:</i> 6α-(3′-methoxy-4′-hydroxybenzoyl)-lup-20(29)-ene-3-one

2015Natural product bioactivities and synthesisDOI: 10.1177/1934578x1501000405

Clinical Evaluation of the Effectiveness and Safety of Mist Amen Fevermix, a Ghanaian Bi-Herbal Product, Used in the Management of Uncomplicated Malaria

2015Malaria Research and Control

DETERMINATION OF THE RUTIN, QUERCETIN AND KAEMPFEROL CONTENTS IN A GHANAIAN POLYHERBAL FORMULATION (EAF-2011) AND ITS RAW MATERIALS USING A SIMULTANEOUS RP-HPLC METHOD

Open Access
2015Phytochemistry and Biological ActivitiesDOI: 10.25004/ijpsdr.2015.070117

A retrospective clinical study on the effectiveness of the aqueous leaf extract of Bredelia ferrugenia (Benth) in the management of diabetes mellitus.

Open Access
2015Natural Antidiabetic Agents Studies

Bredelia ferrugenia (Benth) in the Management of Diabetes Mellitus

Open Access
2014Natural Antidiabetic Agents Studies

Pharmacognostic standardisation of Hilleria latifolia (Lam.) H. Walt. (Phytolaccaceae)

Open Access
2014Ethnobotanical and Medicinal Plants StudiesDOI: 10.12980/apjtb.4.2014apjtb-2014-0416

Antiinflammatory Properties of the Stem‐bark of<i>Anopyxis klaineana</i>and its Major Constituent, Methyl Angolensate

Open Access
2014Phytochemistry and Bioactive CompoundsDOI: 10.1002/ptr.5212

Quality and safety evaluation of a Ghanaian polyherbal product EAF-2011 for the management of superficial mycoses

2013Plant Pathogens and Fungal DiseasesDOI: 10.14194/ijmbr.222

ANTIHYPERGLYCAEMIC ACTIVITY OF ETHANOLIC EXTRACT OF THE STEM OF ADENIA LOBATA ENGL (PASSIFLORACEAE)

2013Natural Antidiabetic Agents Studies

Medicinal and Aromatic Plants of Ghana

2009Natural Antidiabetic Agents StudiesDOI: 10.1021/bk-2009-1021.ch014

Assesssing herbal medical practitioners in professional qualifying examination in Ghana, a model.

2009Complementary and Alternative Medicine Studies

Antimicrobial Activity Of Essential Oils Of &lt;i&gt;Xylopia aethiopica&lt;/i&gt;

Open Access
2008Traditional and Medicinal Uses of AnnonaceaeDOI: 10.4314/ajtcam.v5i4.31295

Chemical Diversity of<i>Lippia multiflora</i>Essential Oils from West Africa

2008Essential Oils and Antimicrobial ActivityDOI: 10.1080/10412905.2008.9699420

Investigation of Activities Related to Wound Healing of Secamone Afzelii

Open Access
2007Essential Oils and Antimicrobial ActivityDOI: 10.4314/just.v26i3.33008

Flavonoid constituents of the mature fruit of Tetrapleura tetraptera schum. Et Thonn.)

Open Access
2006Natural product bioactivities and synthesisDOI: 10.4314/just.v26i1.32961

Evaluation of the antioxidant and free radical scavenging properties of <i>Secamone afzelii</i> Rhoem.

2004Essential Oils and Antimicrobial ActivityDOI: 10.1002/ptr.1614

Composition and Antioxidant Activity of the Essential Oils of <i>Xylopia aethiopica</i> (Dun) A. Rich. (Annonaceae) Leaves, Stem Bark, Root Bark, and Fresh and Dried Fruits, Growing in Ghana

2004Traditional and Medicinal Uses of AnnonaceaeDOI: 10.1021/jf040150j

Antimicrobial activity of the leaves and seeds of Bixa orellana

2003Essential Oils and Antimicrobial ActivityDOI: 10.1016/s0367-326x(02)00289-7

The Essential Oil of<i>Ageratum conyzoides</i>L. from Ghana

1993Sesquiterpenes and Asteraceae StudiesDOI: 10.1080/10412905.1993.9698184

Withanolides of Datura spp. and hybrids

1984Phytochemicals and Medicinal PlantsDOI: 10.1016/s0031-9422(00)83476-7
Academic Metrics
DepartmentDepartment of Herbal Medicine
Total Publications48
Research Themes22
Open Access Papers28

Department of Herbal Medicine

Kwame Nkrumah University of Science and Technology

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