Functionalization, characterization and properties evaluation of cellulose nanocrystals and their bionanocomposites based on protein

• Grant number: 18/00278-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): May 01, 2018
• Effective date (End): April 30, 2019
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Luiz Henrique Capparelli Mattoso
• Grantee: Liliane Samara Ferreira Leite
• Supervisor: Julien Bras
• Host Institution: Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil
• Research place: Université de Grenoble, France
• Associated to the scholarship: 16/03080-3 - Preparation and characterization of bionanocomposites based on proteins and cellulose nanocrystals by continuous casting, BP.DR

Abstract

The increasing environmental concern regarding the plastic pollution worldwide has stimulated the development of low-cost biodegradable materials. Proteins can be used as a polymer matrix for the production of edible and biodegradable packaging with differentiated physical, sensory and nutritional properties. However, using only proteins is not enough for producing films with satisfactory mechanical and barrier properties for food packaging usage. Moreover, functionalized cellulose nanocrystals (f-CNC) are efficient nanofillers that have been used to improve the properties of polymers. Therefore, this internship project proposes the esterification of the surface of cellulose nanocrystals, using nontoxic resin acids rosin, characterization and evaluation of f-CNC and their bionanocomposites based on protein, which will complement the current Ph.D. project (2016/03080-3). The main goals of this proposal are to investigate the effect of the f-CNC in protein matrices to produce films processed by casting, to study their thermal, mechanical, barrier and antimicrobial properties, as well as morphology and dispersion of f-CNC within the bionanocomposites. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

LEITE, LILIANE S. F.; BILATTO, STANLEY; PASCHOALIN, RAFAELLA T.; SOARES, ANDREY C.; MOREIRA, V, FRANCYS K.; OLIVEIRA, JR., OSVALDO N.; MATTOSO, LUIZ H. C.; BRAS, JULIEN. Eco-friendly gelatin films with rosin-grafted cellulose nanocrystals for antimicrobial packaging. International Journal of Biological Macromolecules, v. 165, n. B, p. 2974-2983, DEC 15 2020. (18/22214-6, 18/10899-4, 18/00278-2, 17/18725-2, 18/18953-8)

LEITE, LILIANE S. F.; FERREIRA, CAIO M.; CORREA, ANA C.; MOREIRA, V, FRANCYS K.; MATTOSO, LUIZ H. C.. Scaled-up production of gelatin-cellulose nanocrystal bionanocomposite films by continuous casting. Carbohydrate Polymers, v. 238, JUN 15 2020. (16/03080-3, 10/11584-5, 18/00278-2, 12/21867-0)

LEITE, LILIANE SAMARA FERREIRA; PHAM, CYNTHIA; BILATTO, STANLEY; AZEREDO, HENRIETTE M. C.; CRANSTON, EMILY D.; MOREIRA, FRANCYS KLEY; MATTOSO, LUIZ HENRIQUE C.; BRAS, JULIEN. Effect of Tannic Acid and Cellulose Nanocrystals on Antioxidant and Antimicrobial Properties of Gelatin Films. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 9, n. 25, p. 8539-8549, JUN 28 2021. (18/00278-2, 18/10899-4)

LEITE, LILIANE S. F.; MOREIRA, FRANCYS K. V.; MATTOSO, LUIZ H. C.; BRAS, JULIEN. Electrostatic interactions regulate the physical properties of gelatin-cellulose nanocrystals nanocomposite films intended for biodegradable packaging. FOOD HYDROCOLLOIDS, v. 113, APR 2021. (18/00278-2)