1. Department of Environmental Sciences Kinshasa University (UNIKIN), Kinshasa XI BP 127 Kinshasa Democratic Republic of Congo
2. Laboratory of Tropical and Subtropical Agriculture and Ethnobotany Ghent University Coupure Links 653 B-9000 Ghent Belgium
3. Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences University of Antwerp Universiteitsplein 1 BE-2610 Antwerp Belgium
4. Faculty of Agronomic Sciences Kongo University 23-Avenue Kolo BP 202 Mbanza-Ngungu, Kongo-Central Province Democratic Republic of Congo
5. Faculty of Tropical AgriSciences Czech University of Life Sciences, Prague Kamycka 129 165 00 Praha – Suchdol Czech Republic