Enzymatically processed animal biomass derived from treated bovine hides (wet blue scraps) is herein used as building block for the synthesis of a novel biopolymer. An enzymatic hydrolysis process allows to produce water-soluble lower molecular weight proteins (Bio-A), which are then reacted with glycerol and maleic anhydride (MA) in order to obtain a new intermediate (Bio-IA). With Bio-IA in hand, co-polymerization in the presence of acrylic acid is then carried out. Hydrolysed biomass, intermediates and the final biopolymer (Bio-Ac) have been characterized by means of NMR, FTIR and GPC analysis. Bio-Ac shows good performance when used as retanning agent to produce leather. Physical and mechanical properties of the leather treated with Bio-Ac have been compared with acrylic resin retanned leather, showing similar performance. The reported protocol represents an environmental-friendly interesting alternative to traditional petrochemical based retanning agents, commonly used by the leather industry.
Autori: | Beghetto V. (Corresponding) |
Data di pubblicazione: | 2019 |
Titolo: | Efficient chemo-enzymatic transformation of animal biomass waste for eco-friendly leather production |
Rivista: | MOLECULES |
Digital Object Identifier (DOI): | http://dx.doi.org/10.3390/molecules24162979 |
Volume: | 24 |
Appare nelle tipologie: | 2.1 Articolo su rivista |
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MOLECULES_08_2019.pdf | Versione dell'editore | Accesso gratuito (solo visione) | Open Access Visualizza/Apri |