Emmanuel N. Koffi

Optimization of Ultrasound-Assisted Extraction of Phenolic Antioxidants from Tectona grandis Leaves, Using Experimental Design

Emmanuel N. Koffi, Ibrahim Cissé, Amian B. B. Kassi, Paul R. Lozano, Augustin A. Adima, Emmanuel N. Assidjo & Yves- Alain Bekro · European Journal of Medicinal Plants · 2015

Aims: This study aims to apply central composite design to optimize ultrasound-assisted extraction conditions in order to maximize simultaneously total polyphenols and antioxidant activity from aqueous leaves extract of Tectona grandis. Study Design: Young teak leaves were collec...

Open access Research Article 10.9734/EJMP/2015/20338

Optimization of Polyphenols Extraction Method from Kola Nuts (Cola nitida Vent. Schott & Endl.) Using Experimental Design

Yves B. Nyamien, Olivier Chatigre, Emmanuel N. Koffi, Augustin A. Adima & Henri G. Biego · Biotechnology Journal International · 2015

Aims: The aim of this study is to optimize extraction process of phenolics compounds from kola nuts by using experimental design. Study Design: Kola nuts were collected in October 2014-February 2015 in south of Côte d’Ivoire. Harvested kola nuts were transferred to the laboratory...

Open access Research Article 10.9734/BBJ/2015/17030