| Impact of oil and gas activities on acidity of rain and surface water of Niger Delta, Nigeria: An environmental and public health review JK Nduka, VN Okafor, IO Odiba Journal of Environmental Protection 7 (4), 566-581, 2016 | 30 | 2016 |
| Determination and human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in surface and ground waters from Ifite Ogwari, Anambra State, Nigeria VN Okafor, DO Omokpariola, EC Igbokwe, CM Theodore, NG Chukwu International Journal of Environmental Analytical Chemistry 104 (6), 1381-1403, 2024 | 24 | 2024 |
| Exposure risk to heavy metals through surface and groundwater used for drinking and household activities in Ifite Ogwari, Southeastern Nigeria VN Okafor, DO Omokpariola, OF Obumselu, CG Eze Applied Water Science 13 (4), 105, 2023 | 22 | 2023 |
| Levels of polycyclic aromatic hydrocarbons (PAHs) in beers: consumption and public health concerns VN Okafor, UB Uche, RC Abailim Chemical Science International Journal 29 (1), 47-59, 2020 | 16 | 2020 |
| Comparative studies of the physicochemical properties of beers brewed with hop extracts and extracts from four selected tropical plants VN Okafor, AN Eboatu, RI Anyalebechi, UW Okafor Journal of Advanced Chemical Sciences, 382-386, 2016 | 15 | 2016 |
| Heavy metals in alcoholic beverages consumed in Awka, South-East Nigeria: Carcinogenic and non-carcinogenic health risk assessments VN Okafor, DO Omokpariola, CV Okabekwa, EC Umezinwa Chemistry Africa 5 (6), 2227-2239, 2022 | 10 | 2022 |
| Correlations of major flame characteristics of some fire tolerant trees in South-East Nigeria by coefficient of determination (R2) VN Okafor, MC Obiadi, JN Obiefuna Journal of Scientific Research and Reports 26 (4), 81-98, 2020 | 10 | 2020 |
| A review of nigerian potential hop substitutes in beer brewing: 1983-2020 VN Okafor, IB Tabugbo, RI Anyalebechi, UW Okafor, JN Obiefuna International Research Journal of Pure and Applied Chemistry 21 (15), 50-73, 2020 | 9 | 2020 |
| Hops and potential Nigerian substitutes: comparative studies in beer brewing V Okafor LAP LAMBERT Academic Publishing, 2016 | 8 | 2016 |
| Metals and polycyclic aromatic hydrocarbons (PAHs) in Beer: a review VN Okafor, PU Umennadi, CC Odidika, DC Vinna Journal of Chemical Society of Nigeria 46 (4), 2021 | 6 | 2021 |
| Comparative evaluation of phytochemical constituents, bitterness characters and essential oil contents of extracts from four Nigerian plants as potential substitutes for … VN Okafor, JJ Obodoeze Chemistry Research Journal 2 (4), 16-21, 2017 | 6 | 2017 |
| Spectroscopic methods for evaluation of hop extracts and extract from Gongronema latifolium as substitute in the Nigerian beer industry VN Okafor International Journal of Advanced Research 4 (12), 2499-2504, 2016 | 6 | 2016 |
| Potentiality of Diethylamine as Agent of Deproteination and Deacetylation in the Extraction of Chitosan from Scylla serrata Shell UWORIA V. N. Okafor, C. M. Umenne, B. I. Tabugbo, C. P. Okonkwo, J. N. Obiefuna Chemistry and Materials Research 12 (7), 35 - 45, 2020 | 5 | 2020 |
| Phytochemical constituents of extracts of hops and some potential Nigerian hop substitutes: a comparative study in beer brewing VN Okafor, IR Anyalebechi, UW Okafor, CP Okonkwo, JN Obiefuna, ... International Journal of Biological and Chemical Research 1 (1), 1-7, 2020 | 5 | 2020 |
| Evaluation of anti-nutritional factors in hop extracts and extract from Azadirachta indica as potential substitute in the Nigerian beer industry AN Eboatu, EN Ejike, VN Okafor EPH-International Journal of Applied Science 2 (3), 16-21, 2016 | 5 | 2016 |
| Comparative studies of bitterness, phytochemical and mineral contents of hop extracts and extracts from four selected tropical plants VN Okafor, AN Eboatu, PE Omuku Asian J Med Health Res 1 (6), 1-15, 2016 | 5 | 2016 |
| Kinetic model of the sorption of Cu2+ and Pb2+ from aqueous solution using carbonized Treculia africana husk as biomass. AK Asiagwu, PE Omuku, JI Odiachi, VN Okafor | 5 | 2011 |
| Assessment of polycyclic aromatic hydrocarbons (PAHs) in alcoholic beverages consumed in Awka, Southeast Nigeria VN Okafor, DO Omokpariola, MO Agu, CC Odidika, CV Okabekwa, ... Bulletin of the Chemical Society of Ethiopia 37 (4), 805-815, 2023 | 4 | 2023 |
| Metabolites composition of Garcinia kola extract as potential substitute for isomerized hop extract in beer brewing VN Okafor, UW Okafor, SN Ezem Chemistry Research Journal 2 (5), 153-162, 2017 | 4 | 2017 |
| Characterization of hop extracts and extracts from some selected Nigerian plants by GC VN Okafor, RI Anyalebechi, UW Okafor MS and brewing qualities analyses: International Journal of Research and …, 2016 | 4 | 2016 |
