Preparation of superabsorbent composite(s) based on dialdehyde cellulose extracted from banana fiber waste.

The study focus is the valorization of banana agriculture by products by the extraction and derivatization of cellulose and its incorporation in formulations to produce superabsorbent materials endowed with high water absorption performances. The extracted cellulose (BP) was subjected to a controlled oxidation by sodium periodate to convert it to cellulose dialdehyde (DAC) with controlled aldehyde content. The cellulosic materials were incorporated into a suspension containing acrylic acid (AA) and itaconic acid (IA) to produce composite hybrid hydrogels (SA-BP/SA-DAC) by radical chain polymerization in water, using N,N-methylene-bis-acrylamide (MBA) as a cross-linking agent and potassium persulfate (KPS) as an initiator.

Study of the distribution of water within a biscuit during cooling; effect on the checking and the breakage.

The fragility of biscuits yields checking (cracks) and eventually breakage, which originated mainly from heterogeneity in water distribution in the thickness dimension (surface vs centre) and also to the plan dimension (edge vs centre) of the product. The objective of the BRICE project is to study the impact of the distribution of water on the occurrence of checking and breakage (C&B) in biscuits, considering a round and thick biscuit and a rectangular and thinner biscuit presenting piercing points. C&B counting was performed over 15 days of storage (the time needed to reach stability).

Microcarriers Based on Glycosaminoglycan-Like Marine Exopolysaccharide for TGF-β1 Long-Term Protection.

Articular cartilage is an avascular, non-innervated connective tissue with limited ability to regenerate. Articular degenerative processes arising from trauma, inflammation or due to aging are thus irreversible and may induce the loss of the joint function. To repair cartilaginous defects, tissue engineering approaches are under intense development.