Synthesis and antimicrobial activity of biopolimer film of high molecular mass dietilaminoetil chitosan

• Grant number: 17/13762-7
• Support Opportunities: Scholarships in Brazil - Master
• Start date: September 01, 2017
• End date: February 28, 2019
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Organic Chemistry
• Principal Investigator: Vera Aparecida de Oliveira Tiera
• Grantee: Otávio da Mata Cunha
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil

Abstract

This research project aims at the development of an antimicrobial agent for the preservation of grains, fruits and nuts, contributing toimprove the competitiveness of Brazilian agribusiness, regarding the aspects of food safety and quality, with possible application on the conservation of commodities of high importance to the Brazilian trade balance. The proposal is grounded on an amphiphilic biofungicide patent(No BR102012023859) based on the polysaccharide chitosan and it has as main objective the synthesis and characterization amphiphilic derivatives diethylaminoethyl chitosan of high molecular weight (~ 300 kDa) and the preparation of biopolymeric films. Besides, in vitro studies of the derivatives against fungi that impacts the production and conservation of foods. Alternaria solani and Alternaria alternata, will be performed.In this project we intend to evaluate the physico-chemical and antifungal activity properties of these films and their efficiency as an active coating in food protection. The proposal is part of the FAPESP 2016/15736-0 research project. (AU)

Scientific publications

(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)

CUNHA, OTAVIO DA MATA; FURUYAMA LIMA, ALINE MARGARETE; GARRIDO ASSIS, ODILIO BENEDITO; TIERA, MARCIO JOSE; DE OLIVEIRA TIERA, VERA APARECIDA. Amphiphilic diethylaminoethyl chitosan of high molecular weight as an edible film. International Journal of Biological Macromolecules, v. 164, p. 3411-3420, DEC 1 2020. (17/13762-7, 16/15736-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

CUNHA, Otávio da Mata. Synthesis and antimicrobial activity of high molecular weight diethylaminoethyl chitosan biopolymer films. 2019. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências Letras e Ciências Exatas. São José do Rio Preto São José do Rio Preto.