SMACUMED International Conference on Water-Energy-Food-Ecosystem Nexus in the Mediterranean Region (WEFE 2023)

Valorization of waste from Periplaneta Americana L. as a new chitinous source applicated in the treatment of a real effluent

Nov 16, 2023, 10:30 AM

15m

The main hall (The Museum of Water Civilization in Morocco)

Poster Water Posters session

Speaker

Dr Nadia Eladlani (Interdisciplinary Laboratory in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 4000, Marrakech, Morocco.)

Description

The objective of this study is to promote one of the cockroach species, Periplaneta americana L., native to the Zagora region, through the production of chitin and chitosan. We obtained chitins from different morphological sites of the species: wings (A), legs (P), exoskeleton (E), and whole body (CE). The characterization methods demonstrate the obtaining of chitins with Degree of acetylation and Icr which vary depending on the extraction site. Then, via the Broussignac process, we were able to obtain chitosans with DA, Mv, and Icr depending on the chitinous source. Subsequently, we specially studied the interaction of chitosan originating from chitin from the whole body, its DA is 15.3% and Mv (75KDa), with Copper and Lead, two polluting metals which have a harmful impact on health. The analysis methods (Zeta, EDX,) of these interactions have shown that chitosan has a better affinity for copper 5 mg than for lead 3.4 mg. The results of this study were used in the metal decontamination of real effluent.
This work could constitute an alternative solution to effluent pollution caused by heavy metals.