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Development of biodegradables materials from castor protein modified by tannins and reinforced with vegetal fibers.

Grant number: 09/10172-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): October 01, 2009
Effective date (End): September 30, 2011
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Engineering
Principal researcher:Paulo José do Amaral Sobral
Grantee:Hulda Noemi Chambi Mamani
Home Institution: Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil


Castor seed became a highly rated raw material source for biodiesel production (oil), which generates glycerol as a byproduct. Castor oil can be extracted by cold/hot pressing, or with use of solvents. In all cases, a residual cake, rich in proteins is obtained. The objective of this project is the development of a biodegradable material from the proteins extracted from the castor cake, with modification of the proteins using hydrolysable and condensed tannins, and with reinforcement of biodegradable materials using vegetables fibers, preferentially from castor culture, aiming to contribute for the success of the biodiesel agro industrial policy. To develop the biodegradable material, the proteins will be extracted from the castor cake by solubilization in alkaline medium, in moderate temperature, and separated by centrifugation. The production of two different types of materials will be studied using glycerol as plasticizer: materials based on castor protein modified by tannins; materials based on castor protein reinforced with vegetal fibers using modified and unmodified proteins. These materials will be characterized with regard to mechanical properties, water vapor permeability, water solubility, color and opacity, gloss, glass transition temperature, sorption isotherms, film microstructure, infrared Fourier transform spectroscopy (FTIR), and biodegradation in soil. At the end of this project, it is expected to develop at least one type of biodegradable material for agriculture use.

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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)
HULDA NOEMI CHAMBI MAMANI; JULIANA AUGUSTI GRAZIANO; ROSELI SENGLING LACERDA; ANA MÔNICA QUINTA BARBOSA BITTANTE; CATARINA ABDALLA GOMIDE; PAULO JOSÉ DO AMARAL SOBRAL. Castor Bean Cake Protein-based Biodegradable Films: Gallic Acid Effect. Brazilian Archives of Biology and Technology, v. 63, p. -, 2020. Web of Science Citations: 0.
OLIVEIRA, T. G.; MAKISHI, G. L. A.; CHAMBI, H. N. M.; BITTANTE, A. M. Q. B.; LOURENCO, R. V.; SOBRAL, P. J. A. Cellulose fiber reinforced biodegradable films based on proteins extracted from castor bean (Ricinus communis L.) cake. INDUSTRIAL CROPS AND PRODUCTS, v. 67, p. 355-363, MAY 2015. Web of Science Citations: 16.
CHAMBI, HULDA N. M.; LACERDA, ROSELI S.; MAKISHI, GISELE L. A.; BITTANTE, ANA MONICA Q. B.; GOMIDE, CATARINA A.; SOBRAL, PAULO J. A. Protein extracted from castor bean (Ricinus communis L.) cake in high pH results in films with improved physical properties. INDUSTRIAL CROPS AND PRODUCTS, v. 61, p. 217-224, NOV 2014. Web of Science Citations: 4.
MAKISHI, G. L. A.; LACERDA, R. S.; BITTANTE, A. M. Q. B.; CHAMBI, H. N. M.; COSTA, P. A.; GOMIDE, C. A.; CARVALHO, R. A.; SOBRAL, P. J. A. Films based on castor bean (Ricinus communis L.) proteins crosslinked with glutaraldehyde and glyoxal. INDUSTRIAL CROPS AND PRODUCTS, v. 50, p. 375-382, OCT 2013. Web of Science Citations: 20.

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