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- Title
Utilization of ramon seeds ( Brosimum alicastrum swarts) as a new source material for thermoplastic starch production.
- Authors
Rolando Ríos‐Soberanis, Carlos; Javier Estrada‐León, Raciel; Manuel Moo‐Huchin, Víctor; José Cabrera‐Sierra, María; Manuel Cervantes‐Uc, José; Arturo Bello‐Pérez, Luis; Pérez‐Pacheco, Emilio
- Abstract
ABSTRACT The development and characterization of biodegradable polymers deriving from renewable natural sources has attracted much attention. The aim of this work was to partially characterize a thermoplastic starch obtained from the starch of seeds from the ramon tree (TPS-RS) as an option to substitute thermoplastic starch from corn (TPS-CS), in some of its applications. At 55% of relative humidity (RH), TPS-RS had higher tensile strength and deformation than TPS-CS. X-ray diffraction analysis showed similar values in residual crystallinity (percentage of crystallinity that remains after plasticization process) in both TPS. The SEM micrographs showed a few remnant granular structures in the TPS-RS. The FTIR showed a greater intensity in band at 1016 cm−1 in the TPS-CS and TPS-RS in comparison with their corresponding native starch, indicating an increase in the amorphous region after plasticization. The TGA analysis showed greater thermal stability in TPS-CS (340 °C) compared with TPS-RS (327 °C). In addition, the glass transition temperature in both TPS was 24 °C. The results obtained represent a starting point to potentialize the use of TPS-RS instead of TPS-CS for the development of new biodegradable materials for practical applications in different areas. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44235.
- Subjects
BREADNUT (Trees); THERMOPLASTICS; STARCH; BIOPOLYMERS; BIODEGRADABLE materials; POLYSACCHARIDES; FOURIER transform infrared spectroscopy; SCANNING electron microscopy
- Publication
Journal of Applied Polymer Science, 2016, Vol 133, Issue 47, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.44235