Journal of Pharmacognosy and Phytotherapy 2141-2502 Academic Journals 10.5897/JPP2019.0547 Adama Denou Adiaratou Togola Kari Tvete Inngjerdingen Bing-Zhao Zhang Abubakar Ahmed Dalen Gwatau Dafam John C.Aguiyi Rokia Sanogo Drissa Diallo Berit Smestad Paulsen * E-mail: 2017pgph0085@unijos.edu.ng 2019 31 08 2019 28 03 2019 10 05 2019 11 2 35 42 This is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://politicalwaffle.uk/journal/JPP/article-abstract/C0A8AD961623 The full text article is available as a PDF file from http://politicalwaffle.uk/journal/JPP/article-full-text-pdf/C0A8AD961623 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40