Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Olusegun Ayodele Olaoye](/user/assets/images/profile/no-profile-photo.png)
Food Microbiology and Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
18
0.643
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Chinelo Ezeocha](https://cdn.adscientificindex.com/pictures/0c/4531006.jpg)
Food Processing and Preservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Chidi Felix Ezeama](https://cdn.adscientificindex.com/pictures/e4/4530782.jpg)
Food Microbiology and Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
7
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Clifford Nkemnaso Obi|Obi Clifford Nkemnaso, Clifford Nkemnaso Obi](https://cdn.adscientificindex.com/pictures/92/4530860.jpg)
Food Microbiology. Industrial Microbiology. Traditional Food Fermentation. Industrial Food Fermentation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Maureen-Theodore C. Ojinnaka](/user/assets/images/profile/no-profile-photo.png)
Food Processing
Food Chemistry
Food Flavours
Neglected/Underutilized Species
Product Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Ubbor, Sc](https://cdn.adscientificindex.com/pictures/93/5795017.jpg)
Food Processing and Preservation/Human Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Anthony Ukom](https://cdn.adscientificindex.com/pictures/26/4531002.jpg)
Food chemistry
Food biotechnology
Functional foods
carotenoids and antioxidants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Chijioke Onwuakor](https://cdn.adscientificindex.com/pictures/09/4530867.jpg)
Food and Industrial Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
5
0.455
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Nneoma Elechi Obasi](/user/assets/images/profile/no-profile-photo.png)
Food Science and Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Ijeoma Princewill-Ogbonna](https://cdn.adscientificindex.com/pictures/81/5799057.jpg)
Food Chemistry
Biotechnology
Product Development and Food Safety.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
6
0.857
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Arukwe Dorothy Chinomnso (Nee Nwosu)](https://cdn.adscientificindex.com/pictures/4d/5802925.jpg)
Food Processing and Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Paul Ndubuisi Anyiam](https://cdn.adscientificindex.com/pictures/8a/5818533.jpg)
Food Biochemistry
Food Processing Technology
Nutrition and functional ingredients
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Adindu Linus-Chibuezeh|Linus-Chibuezeh Adindu, Linus Adindu](https://cdn.adscientificindex.com/pictures/b8/4915003.jpg)
Food Science and Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Maduebibisi O. Iwe](/user/assets/images/profile/no-profile-photo.png)
Food Processing
Product Development
Sensory Evaluation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Vivien Itaman](https://cdn.adscientificindex.com/pictures/3e/4915037.jpg)
Food microbiology
applied microbiology
biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Nnenna Unamma](/user/assets/images/profile/no-profile-photo.png)
Food product development
sustainable food production practices
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Onwuzuruike Uzochukwu Anselm](https://cdn.adscientificindex.com/pictures/01/4915028.jpg)
lipid research
modification of oil extraction technologies
commercial potential of local oil seeds
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Nl Nwanagba](/user/assets/images/profile/no-profile-photo.png)
Food Microbiology and Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Iguh Blessing Ngozi](https://cdn.adscientificindex.com/pictures/d2/5035004.jpg)
Food Chemistry and Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 20
![John Chidiebere Okakpu](https://cdn.adscientificindex.com/pictures/54/4915016.jpg)
Food Quality Control and Assurance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Ann Chinyere Nwachukwu](https://cdn.adscientificindex.com/pictures/da/5063307.jpg)
Food Microbiology/Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Kasie Geraldine Okakpu](https://cdn.adscientificindex.com/pictures/0d/5034412.jpg)
Food Chemistry and Biotechnology/New Product Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Osmond Nelson Nwose](https://cdn.adscientificindex.com/pictures/04/5030961.jpg)
Food quality control and assurance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Chidiamara Onyinyechi](https://cdn.adscientificindex.com/pictures/db/5815262.jpg)
Food Science
Food Processing and Engineering
Food Extrusion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Olusegun Ayodele Olaoye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
18
0.643
Food Microbiology and Biotechnology
Chinelo Ezeocha
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
Food Processing and Preservation
Chidi Felix Ezeama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
7
0.500
Food Microbiology and Biotechnology
Clifford Nkemnaso Obi|Obi Clifford Nkemnaso, Clifford Nkemnaso Obi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
Food Microbiology. Industrial Microbiology. Traditional Food Fermentation. Industrial Food Fermentation
Maureen-Theodore C. Ojinnaka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
Food Processing
Food Chemistry
Food Flavours
Neglected/Underutilized Species
Product Development
Ubbor, Sc
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
Food Processing and Preservation/Human Nutrition
Anthony Ukom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
Food chemistry
Food biotechnology
Functional foods
carotenoids and antioxidants
Chijioke Onwuakor
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
5
0.455
Food and Industrial Microbiology
Nneoma Elechi Obasi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
Food Science and Technology
Ijeoma Princewill-Ogbonna
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
6
0.857
Food Chemistry
Biotechnology
Product Development and Food Safety.
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Arukwe Dorothy Chinomnso (Nee Nwosu)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Food Processing and Nutrition
Paul Ndubuisi Anyiam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Food Biochemistry
Food Processing Technology
Nutrition and functional ingredients
Adindu Linus-Chibuezeh|Linus-Chibuezeh Adindu, Linus Adindu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Food Science and Technology
Maduebibisi O. Iwe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Food Processing
Product Development
Sensory Evaluation
Vivien Itaman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Food microbiology
applied microbiology
biotechnology
Nnenna Unamma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Food product development
sustainable food production practices
Onwuzuruike Uzochukwu Anselm
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
lipid research
modification of oil extraction technologies
commercial potential of local oil seeds
Nl Nwanagba
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Microbiology and Biotechnology
Iguh Blessing Ngozi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Chemistry and Nutrition
John Chidiebere Okakpu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Quality Control and Assurance
Ann Chinyere Nwachukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Microbiology/Biotechnology
Kasie Geraldine Okakpu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Chemistry and Biotechnology/New Product Development
Osmond Nelson Nwose
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food quality control and assurance
Chidiamara Onyinyechi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Food Science
Food Processing and Engineering
Food Extrusion