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EUBCE 2024 - Isabel COELHOSO - Adding Value to Lignocellulosic Biomasses Through the Production of Nanolignin and Nanocellulose

Adding Value to Lignocellulosic Biomasses Through the Production of Nanolignin and Nanocellulose

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Processes for bio-based chemicals and materials 2

Adding Value to Lignocellulosic Biomasses Through the Production of Nanolignin and Nanocellulose

Short Introductive summary

The aim of the work was to develop an innovative approach for the simultaneous production of nanocellulose, and nanolignin from different lignocellulosic biomasses (hemp and coconut shell). Nanoparticles were produced via an alkaline pre-treatment approach applied to the two different lignocellulosic biomasses, followed by acid hydrolysis. In the alkali pre-treatment process optimization, some parameters were tested, namely time of reaction and temperature. Taking into consideration a scale up of the process, the time of 2.5h and temperature of 60ºC were chosen as optimum for the process. Bionanocomposites made from hemp and coconut shell NC and NL were incorporated in chitosan and some properties are being analysed: mechanical properties, thickness, optical properties (opacity and transparency), surface color, and solubility and swelling degree.

Presenter

Moderator portrait

Isabel COELHOSO

Universidade NOVA de Lisboa, Chemistry Dpt., PORTUGAL

Presenter's biography

Associate Professor with Habilitation in Chemical and Biochemical Engineering at NOVA FCT in the areas of Transport Phenomena and Separation Processes. Research interests: membranes from biopolymers, food packaging, biorefinery.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

J.R.A. Pires, BIO4Plas, Cantanhede, PORTUGAL
V.G.L. Sousa, INL, Braga, PORTUGAL
I. Coelhoso, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL
H. Godinho, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL
A.L. Fernando, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL

Session reference: 6BV.10.9