_____________________________________________________________________________________________________ *Corresponding author: E-mail: iekpe@yahoo.com; International Journal of Biochemistry Research & Review 23(4): 1-5, 2018; Article no.IJBCRR.44554 ISSN: 2231-086X, NLM ID: 101654445 Evaluation of Some Vitamins and Macro-Nutrients Composition of Ethanolic Extract of Tecoma stans and Costus afer Leaves I. P. Ekpe 1* , E. O. Udosen 2 and Dennis Amaechi 1 1 Depertment of Biochemistry, College of Natural and Applied Sciences, Veritas University (The Catholic University of Nigeria), Bwari, Abuja, Nigeria. 2 Depertment of Biochemistry, College of Basic Medical Sciences, University of Calabar, Cross River State, Nigeria. Authors’ contributions This work was carried out in collaboration between all authors. Author IPE designed the study, performed the statistical analysis, wrote the protocol and wrote the first draft of the manuscript. Authors IPE and EOU managed the analyses of the study. Author DA managed the literature searches. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJBCRR/2018/44554 Editor(s): (1) Dr. Noureddine Benkeblia, Professor, Department of Life Sciences, The University of the West Indies, Jamaica. Reviewers: (1) Uchendu, Mbah Okuwa, Michael Okpara University of Agriculture, Nigeria. (2) Tabe Franklin Nyenty, University of Ngaoundere, Cameroon. Complete Peer review History: http://www.sciencedomain.org/review-history/26869 Received 22 July 2018 Accepted 06 October 2018 Published 27 October 2018 ABSTRACT Aim: This study aims to determine the presence of some vitamins and minerals in both T. stans and C. afer leaves. Materials and Methods: Composition of some vitamins and minerals of ethanolic extract of T. stans and C. afer leaves were evaluated and collected at Malabo Campus, University of Calabar, Calabar and from Eman-Uruan local government area, Akwa Ibom State, Nigeria respectively. The parameters investigated were determined using standard biochemical methods. Results: The leaves contained a variety of vitamins (A, D, E, B complex and C) with vitamin E- (276.33.±3.28 mg/100 g) for Tecoma stans and (265.67±5.49 mg/100 g)for Costus afer. T. stans recorded higher concentration in mg/100 l for the determined vitamins except for vitamin D, whose Original Research Article