O. O. Ibrahim et al Studies in the production of gluconic acid by fermentation.Germany- Zbl.Bakt.Abt.II, Bd. 131, S.362-374 (1976).
O. O. Ibrahim et al. Studies on some nutritional factors influencing the production of gluconic acid. Egypt. J. Food sciences vol. 5, No. 1-2, pp. 9-21 (1977).
O. O. Ibrahim et al. Studied on some factors influencing the production of gluconic acidEgypt. J. Food Science vol. 5, No. 1-2, pp. 21-29 (1977).
O.O .Ibrahim, and D. Day. Biotechnology in nutrition and food engineering. J. of nutrition health and food engineering. August 22, (2014).
O. O. Ibrahim .Chemical structure, properties and application of high intense sweeteners. ECC Nutrition 1.2: 57-66 (2015).
O.O. Ibrahim. The history of biotechnology in medicine and its future perspectives.EC Pharmaceutical Science 12.2 107-1146 (2015).
O.O. Ibrahim Foodborne pathogen Escherichia coli O157:H7: history, Sources of transmission, Detection and Prevention. EC microbiology 2, 1 213-222 (2015)
O.O. Ibrahim. Sugar alcohols: chemical structures, manufacturing, properties, and applications. EC Nutrition 4, 2 817-824 (2016)
O.O. Ibrahim Expression of Shiga-like toxin fused to vascular endothelial growth factor (VEGF/SLT) in E, coli for targeting angiogenesis. EC. Pharmaceutical Sciences 2, 3 338-355 (2016)