O.S. Ajayi

Obafemi Awolowo University

Publishing since 1993, latest 2025

Plant Science
Radiological and Ultrasound Technology
Materials Chemistry
Safety, Risk, Reliability and Quality
Artificial Intelligence
Endocrinology, Diabetes and Metabolism

Publications: 391993–2025
Citations: 396to those papers
h-index: 13i10-index 13
Field-weighted impact: 0.741.00 is the world average
World top 10%: 5%2 of 39 scored papers
Open access: 44%17 papers free to read

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

39 in all

Stabilisation of groundnut oil with gallic acid and leaf extracts of Lonchocarpus sericeus and Lonchocarpus cyanescens
2025International Journal of Food Science & TechnologyJournalOpen accessSenior author2 citations10.1093/ijfood/vvae076
Antioxidant, antidiabetic and molecular docking studies of D-pinitol isolated from Cleistopholis patens (Benth) leaf extract

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Plant Science1333%
Radiological and Ultrasound Technology1231%
Materials Chemistry923%
Safety, Risk, Reliability and Quality718%
Artificial Intelligence410%
Endocrinology, Diabetes and Metabolism410%
Food Science410%
Molecular Biology410%
Global and Planetary Change38%
Nutrition and Dietetics38%

Health Sciences
Life Sciences
Physical Sciences

Topics most written on

Radioactivity and Radon Measurements12
Graphite, nuclear technology, radiation studies7
Nuclear and radioactivity studies7
Phytochemistry and Biological Activities6
Geochemistry and Geologic Mapping4
Natural Antidiabetic Agents Studies4
Essential Oils and Antimicrobial Activity3
Nuclear Physics and Applications3
Radioactive contamination and transfer3
Minerals Flotation and Separation Techniques2
Moringa oleifera research and applications2
Phytochemicals and Antioxidant Activities2

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

21% of their papers have a co-author abroad

papers co-written1111222Home

Most frequent partner countries

Botswana2
United States2
South Africa2
China1
Turkey1

Papers with at least one author in that country.

Institutions written with most

Federal University of TechnologyNG15 papers
Ekiti State UniversityNG3 papers
University of PretoriaZA2 papers
University of BotswanaBW2 papers
Adekunle Ajasin UniversityNG2 papers
Ahmadu Bello UniversityNG2 papers
National Research Institute for Chemical TechnologyNG2 papers
Changchun Institute of Applied ChemistryCN1 paper
Chinese Academy of SciencesCN1 paper
Clemson UniversityUS1 paper

Where they publish

Radiation Protection Dosimetry4
Environmental Forensics3
Health Physics2
Acta Botanica Hungarica1
American journal of food science and technology1
British Journal of Applied Science & Technology1

Development goals addressed

From each paper’s title and abstract

6Clean water and sanitation6
15Life on land4
2Zero hunger3
3Good health and well-being2
4Quality education1
7Affordable and clean energy1
11Sustainable cities and communities1
12

Most cited

Determination of natural radioactivity in drinking water in private dug wells in Akure, Southwestern Nigeria
Radiation Protection Dosimetry6
200743 citations
Radioactivity in drilled and dug well drinking water of Ogun state Southwestern Nigeria and consequent dose estimates
Radiation Protection Dosimetry6
200939 citations
Acetylcholinesterase inhibitor from Anthocleista vogelii leaf extracts
Journal of Ethnopharmacology

An Investigation into Teachers’ Understanding of Student Discipline in Public Secondary Schools in Oyo State

2023KDU Journal of Multidisciplinary StudiesJournalOpen accessCorresponding0 citations10.4038/kjms.v5i1.68

Alpha Amylase Inhibition and Antioxidant Activities of Bicyclic Diterpenoid Lactones from Andrographis paniculata

2021Tropical Journal of Natural Product ResearchJournalOpen accessFirst authorCorresponding7 citations10.26538/tjnpr/v5i6.22

Bioactive compounds from Nauclea latifolia leaf extracts

2020Journal of King Saud University - ScienceJournalOpen accessFirst author17 citations10.1016/j.jksus.2020.03.031

Acetylcholinesterase inhibitor from Anthocleista vogelii leaf extracts

2018Journal of EthnopharmacologyJournalFirst author32 citations10.1016/j.jep.2018.11.009

Nutraceuticals in Different Varieties of Cowpeas

2018American journal of food science and technologyJournalOpen access14 citations10.12691/ajfst-6-2-2

Hexahydrofarnesyl Acetone-Rich Extractives fromHildegardia barteri

2017Journal of Herbs Spices & Medicinal PlantsJournal32 citations10.1080/10496475.2017.1350614

A Cytotoxic Indole Alkaloid from Alstonia boonei

2016Journal of Biologically Active Products from NatureJournal5 citations10.1080/22311866.2016.1250676

Outdoor Air Quality and Acid Rains within Warri Refinery and Its Environs

2016British Journal of Applied Science & TechnologyJournal2 citations10.9734/bjast/2016/23688

Biocidal and Phytochemical Analysis of Leaf Extracts of Annona muricata (Linn.)

2015International Journal of Sciences: Basic and Applied ResearchJournalOpen access7 citations

Radioactivity of surface soils from Oyo state, South Western Nigeria

2013Iranian Journal of radiation research/Iranian journal of radiation researchJournalFirst author6 citations

Leaching of Sphalerite with Hydrogen Peroxide and Nitric Acid

2006Journal of Minerals and Materials Characterization and EngineeringJournalOpen accessSenior author19 citations10.4236/jmmce.2006.52012

Environmental gamma radiation indoors at Akure, Southwestern Nigeria

2000Journal of Environmental RadioactivityJournalFirst authorCorresponding8 citations10.1016/s0265-931x(99)00098-3

The determination of minor and trace elements in some nigerian cigarettes and raw tobacco using inductively coupled plasma mass spectrometry (ICP‐MS)

1993Journal of Environmental Science and Health Part A Environmental Science and Engineering and ToxicologyJournal6 citations10.1080/10934529309375915

Chemical Science International Journal

Discover Chemistry.1

How it can be read

44% free to read

Diamond 10 · 26%Free to read and to publish
Gold 3 · 8%In an open-access journal
Hybrid 2 · 5%Open in a subscription journal
Bronze 1 · 3%Free to read, no open licence
Green 1 · 3%A copy in a repository
Closed 22 · 56%Behind a paywall

Who funds it

6 of 39 papers name a funder

Tertiary Education Trust Fund2
Atomic Energy Council1
Australian Government1
Chinese Academy of Sciences1
International Atomic Energy Agency1
National Institute of Standards and Technology1
U.S. Environmental Protection Agency1
University of Botswana1

Responsible consumption and production

16Peace, justice and strong institutions1

Hexahydrofarnesyl Acetone-Rich Extractives fromHildegardia barteri

Journal of Herbs Spices & Medicinal Plants

201732 citations