Rim Mnafki
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Interests
Rim Mnafki has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Amaia Morales
Chemical and Environmental Engineering Department, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
1 shared publication - Jalel Labidi
Chemical and Environmental Engineering Department, University of the Basque Country UPV/EHU, Donostia-San Sebastián, Spain
1 shared publication - Leyre Sillero
Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of the Basque Country EHU, Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
1 shared publication - Ramzi Khiari
CNRS, Grenoble INP, LGP2, Université Grenoble Alpes, Grenoble, France
1 shared publication - Younes Moussaoui
University of Gafsa
1 shared publication
Latest Publications
- Open Access
Integral Valorization of Posidonia oceanica Balls: An Abundant and Potential Biomass
Posidonia oceanica balls (POB), a kind of seagrass, are a significant environmental issue since they are annually discharged onto beaches. Their current usefulness limits interest in their management and enhances the environmental problem. Therefore, in this research, the potential of this lignocellulosic biomass was studied from a holistic biorefinery point of view. To this end, an in-depth study was carried out to select the best pathway for the integral valorization of POBs. First, an autohydrolysis process was studied for the recovery of oligosaccharides. Then, a delignification stage was applied, where, in addition to studying different delignification methods, the influence of the autohydrolysis pre-treatment was also investigated. Finally, cellulose nanofibers (CNFs) were obtained through a chemo-mechanical treatment. The results showed that autohydrolysis not only improved the delignification process and its products, but also allowed the hemicelluloses to be valorized. Acetoformosolv delignification proved to be the most successful in terms of lignin and cellulose properties. However, alkaline delignification was able to extract the highest amount of lignin with low purity. CNFs were also successfully produced from bleached solids. Therefore, the potential of POB as a feedstock for a biorefinery was confirmed, and the pathway should be chosen according to the requirements of the desired end products.
Open AccessIntegral Valorization of Posidonia oceanica Balls: An Abundant and Potential Biomass
Posidonia oceanica balls (POB), a kind of seagrass, are a significant environmental issue since they are annually discharged onto beaches. Their current usefulness limits interest in their management and enhances the environmental problem. Therefore, in this research, the potential of this lignocellulosic biomass was studied from a holistic biorefinery point of view. To this end, an in-depth study was carried out to select the best pathway for the integral valorization of POBs. First, an autohydrolysis process was studied for the recovery of oligosaccharides. Then, a delignification stage was applied, where, in addition to studying different delignification methods, the influence of the autohydrolysis pre-treatment was also investigated. Finally, cellulose nanofibers (CNFs) were obtained through a chemo-mechanical treatment. The results showed that autohydrolysis not only improved the delignification process and its products, but also allowed the hemicelluloses to be valorized. Acetoformosolv delignification proved to be the most successful in terms of lignin and cellulose properties. However, alkaline delignification was able to extract the highest amount of lignin with low purity. CNFs were also successfully produced from bleached solids. Therefore, the potential of POB as a feedstock for a biorefinery was confirmed, and the pathway should be chosen according to the requirements of the desired end products.