Mrs. Echua Elisabeth Jasmine BILE
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Academic Career Length
2Years (2025-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 February 2025 in Waste and Biomass Valorization
Journal Article
Echua Elisabeth Jasmine BILEAGAlahou André Gabaze GADJI
Alahou André Gabaze GADJIETEric-Olivier TIENEBO
Eric-Olivier TIENEBOOKOllo Kambiré
Ollo KambiréMKMarie-Josephine Adjoa Kouadia
Marie-Josephine Adjoa Kouadia
KAKouabenan Abo
Kouabenan Abo +2
Journal Article
JNJunior Maimou Nganko
Junior Maimou Nganko
Narcis BARSANEKEkoun Koffi
Ekoun KoffiAZAndrei Zaharia
Andrei ZahariaKAKouassi Esaie Kouadio Appiah
Kouassi Esaie Kouadio AppiahVNValentin Nedeff
Valentin Nedeff +8
Faced with the depletion of fossil resources and the need to promote a circular economy, lignocellulosic biomass represents a solution for energy transition and bioeconomy. However, wood sawdust, which contains bioactive compounds (secondary metabolites), is often burned in the open by many sawmills. This study aims to valorize Framiré wood sawdust by extracting its secondary metabolites through maceration and infusion, then converting the depleted residue into combustible briquettes. The yellowness index of the extracts ranged from 73.490 ± 0.021 (maceration) to 81.720 ± 0.014 (infusion). The total phenolic content varied from 0.097 ± 0.001 to 0.63 ± 0.049 gGAE/100 g dry matter for maceration and infusion, respectively. The extraction of bioactive compounds did not significantly affect the energy or mechanical properties of the fuels. Their higher heating value ranged from 26,153 ± 92 to 26,201 ± 90 kJ/kg for fuels with and without secondary metabolites, respectively. The Shock Resistance Index ranged from 139.33 ± 7.51% (without metabolites) to 153.00 ± 5.20% (with metabolites). A significant difference was observed in the specific consumption of the fuels, decreasing from 1.400 ± 0.100 to 0.861 ± 0.001 kg/L for fuels without and with secondary metabolites, respectively. These results open promising prospects, particularly for the use of Framiré extracts to develop flame-retardant products for wood and its derivatives.
Journal Article
Echua Elisabeth Jasmine BILEAGAlahou André Gabaze GADJI
Alahou André Gabaze GADJIETEric-Olivier TIENEBO
Eric-Olivier TIENEBOJNJunior Maimou Nganko
Junior Maimou NgankoAKAdjoa Marie-Joséphine Kouadia
Adjoa Marie-Joséphine KouadiaKAKouabenan Abo
Kouabenan Abo +3
Large-scale production of Bacillus thuringiensis, one of the most widely used biopesticides, is often limited by the high cost of conventional culture media. In this study, fermented cassava paste water (EFM), ripe mango pulp juice (CM), and cashew apple juice (JPC) were evaluated as alternative substrates for the liquid fermentation of B. thuringiensis var. kurstaki HD-1. Physicochemical analyses revealed acidic pH values and classified the substrates into two clusters: CM with high C/N ratios, organic matter, total sugars, and proteins, and EFM and JPC with lower C/N ratios and nutrient levels. Fermentation results indicated that JPC supported the highest biomass production (8.29 × 1013 CFU mL−1), exceeding that in the standard Tryptone Soy Broth (TSB) medium. However, CM promoted the highest sporulation rate (1.46 × 1013 CFU mL−1) and the greatest bioactive lipopeptides—iturins (102.2 mg L−1) and surfactins (554.7 mg L−1)—surpassing TSB. The antifungal activity of crude fermented CM, EFM, and TSB was evaluated against Sclerotium rolfsii. All samples significantly inhibited mycelial growth of the pathogen with no significant differences among substrates or concentrations tested. This study highlights the potential of B. thuringiensis-fermented agrowaste as a cost-effective, environmentally friendly biocontrol tool for Sclerotium rolfsii.
About Me
Echua Elisabeth Jasmine BILE is a PhD Student in applied biotechnology in Sustainable Agriculture at the Centre of Excellence for High Value-Added Waste Recovery (CEA-VALOPRO). She holds a Master’s degree in Climate Change, Biodiversity and Ecosystem Services from the African Centre of Excellence in Climate Change, Biodiversity and Sustainable Agriculture in 2020, with a bachelor's degree in Crop Production in 2017. Jasmine is actively involved in implementation of innovative and sustainable solutions in agriculture, Food biotechnology and waste valorization through its involvement with local non-governmental organizations and consultancy individual in Climate Engineering and sustainable development. She is member of the West African Chemical Society (SOACHIM), member of the Association of Women and Teacher Researchers of Côte d'Ivoire (AFEMCI), participated in the 1st cohort of African Training School to Chemistry and Environmental Sustainability (GreenChemAfrica 2024). Jasmine was a scholarship holder of the Mobility Program « Eugen Ionescu » 2022-2023 of the Agence Universitaire de la Francophonie (AUF) and the Romanian government. She benefited from the France Excellence grant from the Service for Cooperation and Cultural Action (SCAC) and therefore belongs to the France Allumini network. Regarding his scientific contributions, Echua Elisabeth Jasmine BILE is author and co-author of several published articles available via this link https://orcid.org/0009-0009-4728-5369