Physical properties of films based in biopolymers reinforced with laponite

• Grant number: 12/24047-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2013
• End date: May 31, 2017
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Engineering
• Principal Investigator: Paulo José do Amaral Sobral
• Grantee: Germán Ayala Valencia
• Host Institution: Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil

Abstract

Environmental problems caused by packaging based of non-biodegradable plastic have provoked a significant increase in studies on the films based in biopolymers. However, these films have limitations on their properties, mainly due to the sensitivity to relative humidity of ambient. Among the alternatives studied to improve the characteristics of these materials, the use of nanoparticles, with emphasis on montmorilonite, could be interesting but it has problems of dispersion in water. Another interesting nanoparticle is the laponite, which is synthetic nanoclay. The objective of this project is the development of films based on biopolymers (gelatin, collagen or starch) reinforced with a nanoparticle (laponite). It is intended to study the effect of concentration of laponite and two production methods, besides the quality of the nanoparticle dispersion, on the major physical properties of the films, with particular interest in surface properties. The films will be prepared by dehydration of film forming solutions (SFF), with the following formulations: 4 and 8 g collagen or gelatin/100 g SFF, or 2 and 4 g cassava starch/100 SFF g; 0, 1.5, 3 , 4.5 laponite/100g gelatin and 30g glycerol/100g gelatin. The quality of the dispersion of nanoparticles will be studied by scanning electron microscopy and atomic force microscopy, and also, by determining the dimensions and the zeta potential of nanoparticles. The films will be characterized to knowledge of its main physical properties, with particular interest in those related to surface properties such as brightness, wettability (contact angle) and surface microstructure. Other characterizations, as crystallinity, mechanical properties, water vapor permeability, solubility, phase transitions and sorption isotherms will be made to have a better knowledge of the properties of nanostructured films. (AU)

Scientific publications

(13)

(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)

VALENCIA, G. A.; DJABOUROV, M.; CARN, F.; SOBRAL, P. J. A.. Novel Insights on Swelling and Dehydration of Laponite. COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, v. 23, p. 1-5, MAR 2018. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; LUCIANO, CARLA GIOVANA; LOURENCO, RODRIGO VINICIUS; QUINTA BARBOSA BITTANTE, ANA MONICA; DO AMARAL SOBRAL, PAULO JOSE. Morphological and physical properties of nano-biocomposite films based on collagen loaded with laponite (R). FOOD PACKAGING AND SHELF LIFE, v. 19, p. 24-30, MAR 2019. (12/24047-3, 13/07914-8)

LOPEZ-ANGULO, DANIEL; BITTANTE, ANA MONICA Q. B.; LUCIANO, CARLA G.; AYALA-VALENCIA, GERMAN; FLAKER, CHRISTIAN H. C.; DJABOUROV, MADELEINE; DO AMARAL SOBRAL, PAULO JOSE. Effect of Laponite (R) on the structure, thermal stability and barrier properties of nanocomposite gelatin films. FOOD BIOSCIENCE, v. 35, JUN 2020. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; LUCIANO, CARLA GIOVANA; LOURENCO, RODRIGO VINICIUS; DO AMARAL SOBRAL, PAULO JOSE. Microstructure and physical properties of nano-biocomposite films based on cassava starch and laponite. International Journal of Biological Macromolecules, v. 107, n. B, p. 1576-1583, FEB 2018. (12/24047-3, 13/07914-8)

SANDOVAL GORDILLO, CARLOS ANDRES; VALENCIA, GERMAN AYALA; VARGAS ZAPATA, RUBEN ANTONIO; AGUDELO HENAO, ANA CECILIA. Physicochemical Characterization of Arrowroot Starch (Maranta arundinacea Linn) and Glycerol/Arrowroot Starch Membranes. International Journal of Food Engineering, v. 10, n. 4, p. 727-735, DEC 2014. (12/24047-3)

VALENCIA, GERMAN AYALA; FREITAS MORAES, IZABEL CRISTINA; LOURENCO, RODRIGO VINICIUS; QUINTA BARBOSA BITTANTE, ANA MONICA; DO AMARAL SOBRAL, PAULO JOSE. Physicochemical, morphological, and functional properties of flour and starch from peach palm (Bactris gasipaes K.) fruit. STARCH-STÄRKE, v. 67, n. 1-2, SI, p. 163-173, JAN 2015. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; LOURENCO, RODRIGO VINICIUS; QUINTA BARBOSA BITTANTE, ANA MONICA; DO AMARAL SOBRAL, PAULO JOSE. Physical and morphological properties of nanocomposite films based on gelatin and Laponite. APPLIED CLAY SCIENCE, v. 124, p. 260-266, MAY 2016. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; FREITAS MORAES, IZABEL CRISTINA; LOURENCO, RODRIGO VINICIUS; BARBOSA BITTANTE, ANA M. Q.; DO AMARAL SOBRAL, PAULO JOSE. Physicochemical Properties of Maranta (Maranta arundinacea L.) Starch. INTERNATIONAL JOURNAL OF FOOD PROPERTIES, v. 18, n. 9, p. 1990-2001, 2015. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; FREITAS MORAES, IZABEL CRISTINA; GILLES HILLIOU, LOIC HUGUES; LOURENCO, RODRIGO VINICIUS; DO AMARAL SOBRAL, PAULO JOSE. Nanocomposite-forming solutions based on cassava starch and laponite: Viscoelastic and rheological characterization. Journal of Food Engineering, v. 166, p. 174-181, DEC 2015. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; DJABOUROV, MADELEINE; DO AMARAL SOBRAL, PAULO JOSE. Water desorption of cassava starch granules: A study based on thermogravimetric analysis of aqueous suspensions and humid powders. Carbohydrate Polymers, v. 147, p. 533-541, AUG 20 2016. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; LUCIANO, CARLA GIOVANA; LOURENCO, RODRIGO VINICIUS; DO AMARAL SOBRAL, PAULO JOSE. Microstructure and physical properties of nano-biocomposite films based on cassava starch and laponite. International Journal of Biological Macromolecules, v. 107, p. 8-pg., 2018-02-01. (12/24047-3, 13/07914-8)

VALENCIA, GERMAN AYALA; FREITAS MORAES, IZABEL CRISTINA; LOURENCO, RODRIGO VINICIUS; QUINTA BARBOSA BITTANTE, ANA MONICA; DO AMARAL SOBRAL, PAULO JOSE. Physicochemical, morphological, and functional properties of flour and starch from peach palm (Bactris gasipaes K.) fruit. STARCH-STÄRKE, v. 67, n. 1-2, p. 11-pg., 2015-01-01. (12/24047-3, 13/07914-8)

SANDOVAL GORDILLO, CARLOS ANDRES; VALENCIA, GERMAN AYALA; VARGAS ZAPATA, RUBEN ANTONIO; AGUDELO HENAO, ANA CECILIA. Physicochemical Characterization of Arrowroot Starch (Maranta arundinacea Linn) and Glycerol/Arrowroot Starch Membranes. INTERNATIONAL JOURNAL OF FOOD ENGINEERING, v. 10, n. 4, p. 9-pg., 2014-12-01. (12/24047-3)

Academic Publications

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

VALENCIA, Germán Ayala. Physical properties of films based in biopolymers reinforced with laponite. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Zootecnica e Engenharia de Alimentos (FZE/BT) Pirassununga.