State Of Origin:  Enugu
Nationality:    Nigerian
Present Post: Professor

Previous Post: Associate Professor

Sex: Male

Marital Status:   Married


Office Address:    Department Of Food Science & Technology, College of Applied Food Sciences and Tourism Michael Okpara University of Agriculture Umudike,  Umuahia  P.M.B. 7267,Abia State, Nigeria.




Primary School: Abakpa Nike Primary School, Enugu

Secondary School: National Grammar School Nike, Enugu

University/ Other Higher Institutions Attended: University of Nigeria, Nsukka

Academic Qualifications with Dates:

1992-1997            Ph.D. Food Science & Technology              University Of Nigeria, Nsukka

1989-1991            M. Sc. Food Science & Technology           University Of Nigeria, Nsukka

1982-1987            B.Sc. Food Science & Technology              University Of Nigeria, Nsukka

1977-1981            WAEC.

1971-1976            School Leaving Certificate

Academic Honours:

1991: Scholarship Award by Nigerian Government for Postgraduate Studies

2005: International Scholarship award by Israeli Government, MASHAV

2008:  Visiting Scientist and lecturer to the Department of Food and Cereal Science, North Dakota State                 University, United States of America

2008:  Academic research funding by the Abia State Government.


Part C        


Full Employment History with Dates:

1988-1989            Chemist Zaki Bottling Company Nig. Limited, Wurno, Sokoto State

1994                Full-time Lecturer, Department of Food Science and Technology, Michael Okpara                        University of Agriculture, Umudike.


Teaching History with Dates:

1992                Part –Time Lecturer, Department of Food Science and Technology, University of                          Nigeria, Nsukka

1994                Full-time Lecturer, Department of Food Science and Technology, Michael Okpara                        University of Agriculture, Umudike

2002                Part –Time Lecturer, Department of Food Science and Technology, Abia State                              University, Umuahia Campus

2008                      Guest Lecturer  Department of Food and Cereal Science, North Dakota State University                                                US


Administrative Experience within & outside the University:

2013 -2016             Member, University Council, Michael Okpara University of Agriculture, Umudike

2010 – 2014, 2017-Date: Dean College of Applied Food Sciences and Tourism, MOUAU

2006-2007            Head of Department, Food Science and Technology, MOUAU

1991                       Manager Ocean Perch Smoked Fish Ventures, Nsukka, Nigeria

1987                       Chemist,  Zaki Bottling Co.Nig. Ltd. Sokoto, Nigeria

2001 – Date        Pastor, The Redeemed Christian Church of God






Dissertations and Thesis:


M.Sc.: Aqueous extraction, characterization and refining of palm (Elaeis guineensis) kernel oil.

PHD.:  Toxicological studies of hemagglutinin in raw and processed soybean and mucuna  bean (Mucuna cochichinensis) and growth response of catfish (Clarias gariepinus) fed their diets.


Journal Articles:


1.       Orieke, C. O., Onwuka, G. I., Ezembu, E. N. (2017). Evaluation of the Functional and Pasting Properties of Composite FARO 44 rice- Cassava (TMS 8082) Flour MealsThe International Journal Of Science & Technoledge 5 (4) : 125-132.

2.       Iwe M.O., Michael N., Madu N.E., Obasi N.E.Onwuka G.I., Nwabueze T.U. and Onuh J.O. (2017) Physicochemical and Pasting Properties High Quality Cassava Flour and Wheat Flour Blends (HQCF)Agrotechnology  6 (3) : 2-8.

3.       Iwe M.O., Michael N., Madu N.E., Obasi N.E.Onwuka G.I., Nwabueze T.U., Onuh J.O. and Asumugha V.U. (2017)Production and Evaluation of Bread Made from High Quality Cassava Flour (HQCF)and Wheat Flour Blends. Agrotechnology 6: 166. doi: 10.4172/2168-9881.1000166

4.      Chima A. Egedigwe, Chukwunonso E.C.C. Ejike, Ifeoma I. Ijeh1, Udo Herbert,  Onwuka G.I., and Victoria U. Asumugha (2016). Anti-obesity potentials of aqueous and methanol extracts of Vernonia amygdalina del. leaves in high-fat diet fed ratsAfr J Tradit Complement Altern Med. (2016) 13(2):86-93

5.        Onwuka G.I, Clifford H. and Onuegbu N.C. (2013) The Evaluation of the Extraction Efficiencies of Different Solvent Mixtures And Extraction Procedures on the Phenolics in African Pear (Dacryodes Edulis)  IJBPAS 2(5): 1010-1023

6.       Uhiara, N.S and Onwuka, Greg (2014) Suitability of Protein-Rich Extract from Okra Seed for Formulation of Ready to Use Therapeutic Foods (RUTF) Niger. Food J 2014;32(1):105-9.

7.       Ohuoba, A. N., Onwuka, G. I. and Nwaogu, E. N.1 (2014) Evaluation of Alcohol Production Potentials of Selected Cassava GenotypesInternational Journal of Applied Research and Technology 3( 4) : 93 – 98.

8.       Ikpeama, Ahamefula, Onwuka, G. I. and Nwankwo, Chibuzo (2014)  Nutritional Composition of Tumeric (Curcuma longa) and its Antimicrobial PropertiesInternational Journal of Scientific & Engineering Research  5( 10) : 1085-1089.

9.       Onwuka G.I., Obasi N.E.1, Clifford H. and Ihediwah V.C.1 (2015) Development of extraction protocol for phenolic compounds in musk tree seed (Buchholzia coriacea) Sky Journal of Food Science  4(4): 050 – 05

10.    Ezembu, E. N., Onwuka, G. I (2014) smoking on the storage life and nutritional quality of cat, croaker and sardine fishes. American Journal of International Contemporary Scientific Research 2 (4):12-27.

11.   Onuegbu N.C, Onwuka G.I, And Clifford H. (2013) Development of Extraction Protocol for Phenolic Compounds in African Pear Seed (Dacryodes Edulis) IJBPAS 2(5): 1044-1056

12.   Ezeocha V.C, Ojimelukwe, P.C. and Onwuka G.I. (2012) Effect of cooking on the nutritional and phytochemical components of trifoliate yam (Dioscorea dumetorum)  Global Advanced Research Journal of Biochemistry and Bioinformatics  Vol. 1(2), pp. 026-030.

13.   Ezeocha V.C. and  Onwuka G.I. (2010) Effect of processing methods on the physico-chemical and nutritional quality of maize and soyabean based complementary blends. Nigeria Food Journal Vol 28, No 2

14.   Igwe E.C. Ojimelukwe P.C. and  Onwuka G.I. (2011) Effects of Processing Conditions on the quality of Kindirmo made from whole Cow Milk and Cow–Soymilk Mixtures – I International Journal of Current Research  3( 11) :011-018.

15.    Igwe E.C. Ojimelukwe P.C. and  Onwuka G.I. (2011) Effects of Processing Conditions on the quality of Kindirmo made from whole Cow Milk and Cow–Soymilk Mixtures – II International Journal of Current Research  3( 11) :024-029.

16.   AkaerueB.I. Onwuka G.I. and James O.G. (2010) Evaluation of the Bacterial Status of Water Samples at Umudike Abia State. Nigeria International Journal of Agriculture and Food Systems.  Vol 4, No 2

17.    Akaerue B.I and  Onwuka GI (2010). Evaluation of the yield, protein content and functional properties of Mung bean [Vigna radiata (L.) Wilczek] protein isolates as affected by processing. Pak. J. Nutr. 9(8): 728- 735

18.    Onwuka G. I Akaerue B.I. and A Ofoeze A. (2010) Comparative evaluation of instant fufu flours produced from yam, cassava, rice/cassava blends and maize/cassava blends. Nigerian Food Journal Vol 28, No 2

19.   Akaerue, B.I. and Onwuka, G.I. (2013) The Proximate Composition, Physical Qualities, Sensory Attributes and Microbial Load of Mungbean Biscuits as Affected by Processing  Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS) 4(2):250-257.

20.   Atuonwu,A.C Onwuka, G.I Ibeawuchi G.I.  (2010) Comparative study on the role of Food gums in the production of Cocoa-enriched Candies. Nigerian Food Journal Archives 28, (1):

21.    Ojinnaka M.C. and  Onwuka G.I. (2011). Organoleptic Assessment of the Performance of Some Cultivars of Ipomoea batatas in the Development of Selected Snack Products. Pakistan Journal of Nutrition, 10: 935-939.

22.   Onwuka G.I. and Opara H.O.(2006). Evaluation of the effect of chemical treatment and soaking on the cooking time of African yam bean seed(Sphenostylis stenocarpa) . Bio – Research 4(1): 10-13.

23.   Onwuka G.I. and Edeh N.M. (2006). Evaluation of the effectiveness of some processing methods in the preservation of tomatoes. Journal of Food Technology 4(4) :294-298. .Pakistan

24.   Onwuka G.I. and Nwokorie S.O.(2006) Comparative studies on the winning potentials of black tamarind,local grapefruit and exotic apple. Journal of Food Technology 4(4) :350-353. . 

25.   Onwuka G.I. and Akaerue B.I. (2006). Evaluation of the quality of palm oil produced by different methods of processing. Research Journal of Biological Sciences 1(1-4): 16-19.  

26.   Onwuka G.I. and Ihuma C. (2007).Physico-Chemical composion and product behaviour of flours and chips from two yam sp.(Dioscorea rotundata and Dioscorea alata). Research Journal of Applied Sciences 2(1): 35-38.

27.   Onwuka  G.I. and  Uka S.A. (2006). The effect of processing on some of the antinutritional factors of African yam bean (Sphenostylis stenocarpa) seeds. Bio-Research 5 (2) .

28.   Onwuka G.I. and Ogbogu N.J.(7007).  Effect of Fermentation on the quality and physicochemical properties of cassava varieties NR7212 and Nwangbisi. Journal of Food Technology 5 (3) :261 – 264.

29.   Ubbor S.C. Akobundu E.N.T. and Onwuka G.I. (2006). Functional properties and cyanide content of starch and flour of selected cassava( Manihot  esculenta Crantz) Mosaic disease(CMD) Resistant Varieties. Journal of Raw Materials Research 3(2): 4-15.

30.   G.I. Onwuka  and U. Osuoji (2009) production of ice cream and mayonnaise using local and conventional hydrocolloids (In Press).

31.   Onwuka G.I. and Onwuka N.D.(2005) The effect of ripening on the functional properties of plantain and plantain based cake .International Journal of Food Properties 8 : 347-353.USA

32.   Onwuka G.I. (2006)  Soaking, boiling and antinutritional factors in pigeon peas (Cajanus cajan) and   cowpeas (Vigna unguiculata). Journal of Food Processing and Preservation 30 :616-630.  USA

33.   Udensi E.A., Onwuka G.I. and Onyekwere C. R. (2005) Effect of autoclaving and boiling on some antinutritional factors in Mucuna slonie.   Nigerian Food Journal Vol. 23: 53-58.

34.   Onwuka G.I., Nwokocha, H.N. and Asumugha,  U.V.(2002) Performance of New Varieties of sweet   Potato (Ipomea batata) in Composite Flour Bread.J. Appl.Chem. & Agric. Res. 8:79-83.

35.   Udensi E.A., Onwuka G.I. and Okoli E. G. (2003) Effect of Processing  on the level of Some antinutritional factors in Mucuna utilis. Plant Prod. Res. J.  8(1): 1-6.

36.   Onwuka G. I. , Nwabara C. C., Nwokedi P. M, Echendu C. A., Asumugha . U. and   Igboekwe  M . U.(2002) Comparative Studies of  the Efficacy of Sun Drying, Solar Dryer and Hot Air Oven in the Preservation of Tomatoes, Okra, Pepper and Onion.Nigerian Food Journal  20: 10-14.

37.   Onwuka G.I., Ownuka, N.D. and Mgbemka B.O. (1990).  Weight Gain, Mortality     and Normalized Biomass Index of Catfish Fed Soybean and Mucuna  Cochinchineasis.Paper   accepted by the Nigerian Journal of Agricultural Technology.

38.    Onwuka G.I. and Onwuka N.D. (1999) Efficacy of Palm Kernel Oil Extraction  Methods   Journal of  Sustainable Agriculture and the Environment (1):  123 – 127.

39.   Ojewola  G.S. and Onwuka G.I. (2001)  Evaluation of organoleptic  Properties  of Suya  Produced from  various  sources of Meat. Nigerian Journal of Animal Production. 28:1(24-26).

40.    Onwuka, G.I., Nwokocha, H.N., and Asumugha, U.V. (2000).  Evaluation of  the Performance of Some Sweet Potato in Bread Making.  Journal of  Sustainable Agriculture and the Environment (1): 123 – 127.

41.   Onwuka G.I., Ngoddy, P.O. and Ihekoronye A.I. (1995).  The performance of the   flours of  sorghum, maize, cassava and their blends with wheat in bread baking Journal of Innovations in Life Sciences 2:62 – 69.

42.   Onwuka G.I.,Udensi E.A. and Azubike(2002). Potentials of Cocoyam in bakery and Chips production.Journal of Sustainable Agriculture and the Environment,   4 ( 1) : 64-69.

43.    Onwuka G.I. and Ebereonwu O. (2004). Effect of chemical preservation, pasteurization and refrigeration on the stability of kunu zaki. Journal of the Science of Agriculture, Food Technology and the Environment Vol 4: 111-114 

44.   Onwuka N.D., Nwajiobi E.N and Onwuka G.I. (1998).  Effects of some   chemical preservatives and packaging materials on the shelf life of Cola   nitida. NJTE Vol. 15, No. 1.

45.    Onwuka G.I. and Onwuka,N.D. (1995).Comparative studies    of  quality    characteristics of palm kernel oil extracted by aqueous, traditional and  chemical methods. Journal of Innovations in Life Sciences, 2:17 – 22.

 Conference Proceedings:


1.       Onwuka, G.I., Onwuka, N.D. and Nwajiobi, E.M. (1998).  Studies on the Shelf-life Characteristics of Kolanuts (Cola acuminata) stored in Glass bottles, Tin Cans and Thermosetting plastics.  Proceedings of the 22nd Annual Nigerian Institute of Food Science and Technology (NIFST) Conference held at Abeokuta 23rd – 26th November 1998.

2.        Onwuka, G.I. and Egbujor, G.C. (1998).  Evalution of Peanut Butter, Treated with local spices:  Implication for investment.  Proceedings of the 13th Annual Conference of Farm Management Association of Nigeria (FAMAN) held at the Federal University of Agriculture, Umudike:  12th – 15th October 1997.

3.        Onwuka, G.I. Onwuka, N.D., and Obi O, (1999).  Dehydration Characteristics   and Compositional Changes of Plantain (Musa paradissiaca) at Different Levels of Ripening.  Proceedings of the 23rd Annual NIFST Conference held at RMRDC, Abuja, 25th –27th October 1999.

4.       Onwuka, G.I., Onwuka, N.D. and Neburagho, W.O. (1999).  Some Physical and Chemical Properties of Rubber Seed Oil (Hevea brasiliensis).  Proceedings of the 23rd Annual Conference of NIFST, held at RMRDC, Abuja, 25th –27th October 1999.

5.       Udensi, A.E., Onwuka, G.I., and Eze, A.I. (1999).  Effect of Blanching and Drying Temperature on the Functional Properties of Bambara Groundnut (Voandzeia subterranae).  Proceedings of the 23rd Annual Conference NIFST, held at RMRDC, Abuja, 25th – 27th October 1999.

6.       Onwuka, G.I. (2000).  Evaluation of the Baking Potentials of Soybean, Corn  and    Mucuna Cochinchinensis in Composite Bread.  Proceedings:  24th Annual NIFST Conference20th      – 24th      November, 2000.  Bauchi, (pp 213 – 214).     

7.        Onwuka G.I. and Omire G.C. (2001) Effect of different Treatments on the Shelf-life  of Sobo Drink. Proceedings of the 25th  Annual NIFST Conference, held at Lagos, Nigeria, November, 5-9,2001(pp 124125).

8.        Onwuka G.I. and Omire G.C. (2001) Studies on the Shelf-life of Soymilk Treated with Different Preservatives. Proceedings of the 25th  Annual NIFST Conference, held   at Lagos, Nigeria, November, 5-9,2001(pp 126-127).

9.       Onwuka  G.I. Nwokocha G.U. and Asumugha G.N. (2002) Evaluation of processing methods for the production of Ginger.  Proceedings of 26th Annual NIFST Conference, 4th –8th November, 2002, Owerri.

10.    Ogbogu N.J. and onwuka G.I. (2006). Kinetics of degradation of hydrogen cyanide in cassava  products. Proceedings of 30th Annual NIFST Conference,23rd –27th October, 2006, Lagos.

11.    Akaerue B.I., Onwuka G.I. and James O. G. (2006).Physico- Chemical analysis of different water samples from Umudike and its environs. Proceedings of 30th Annual NIFST Conference,23rd –27th October, 2006, Lagos.

12.    Atuonwu A.C ., Onwuka G.I. and Agunanne A.I. (2009). Quality assessment of three tropical fruit juices as affected by different preservation methods. Proceedings of the 33rd   Annual NIFST Conference, held   at Yola, Nigeria, October, 12-16, 2009(pp  248-249).

13.   Onwuka G.I. and Onwuka N.D. and Mgbemka B.O. (1998).  Effects of some   processing methods on detoxifying haemagglutinin in soybean and Mucuna cochinensis.  Proceedings of the Silver Anniversary Conference of NSAP.  March 21 – 26, 1998, Nigeria Paper No. 211.


     Books and Book Chapters

14.   Onwuka G.I.(2005)  Food Analysis and Instrumentation –Theory and Practice,

Naphthali  Prints, Lagos, Nigeria.

15.   Onwuka.G.I. (2014) Food Science and Technology. Naphthali  Prints, Lagos, Nigeria.


Technical Reports:

16.   Onwuka G.I.(2006) Michael Okpara University of agriculture, Umudike Extension Delivery – Yesterday and Today. Technical Report  Presented to the University  Community on the 19th July, 2006.

17.   Onwuka G.I. (2008) EVALUATION OF THE INHIBITORY POTENTIALS OF Buchholzia coriacea ON Stophilus zeamais IN STORED GRAINS . Paper presented to the School of  Food Systems, North Nakota State  University October  22nd  2008.

18.   Onwuka G.I.(2005) Debittering of Citrus Juices. Technical Report Presented at the 6th International Post Graduate Course in Food Technology held at Hebrew University, Rihovot Campus, Israel, September, 2005.

19.   Onwuka G.I. (2009) Improvement Of The Nutritional Quality Of Processed Roots And Tubers . Paper presented at the Nigerian Institute of  Food Science(Nifst) Day Celebration at NRCRI, Umudike, June 5, 2009.




External Examinations:

University of Nigeria, Nsukka

Federal University of Technology Owerri

Eboyi State Univerity, Abakaliki

Obafemi Awolowo University, Ile Ife


Chairmanship/Membership of Boards

Member University Council, MOUAU

Chairman Post Accreditation committee for College of Natural Sciences

Chairman Post Accreditation Committee for Industrial Relations and Personnel Management Programme

Chairman Council Committee on the Screening of Senior Non-Teaching Staff

Chairman investigation panel on unwholesome activities and act of brutality against Mr. Chinedu

Nwokeke by Mr. Churchhill Chinonso Ekedo.

Member,  Committee on the Review of Students’ Handbook


Graduate Students Supervision:

–          Ph.D   – 12

–          Masters degree –  20

–          PGD –  7


Mentorship of Staff: 16


Current Research Interest:

– Conversion of food wastes into useful and value added food products

-Packaging and preservation of local food products

-Food Toxicology


Membership of Professional Bodies:

Fellow, Nigerian Institute of Food Science and Technology

Member, Institute of Food Technology, USA


Other Achievements and Dates:

Presentation of Inaugural Lecture, Title: Food Wastes in the Harness- The Cyclic Journey of Food Security, Better Nutrition and Good Nutrition.