Modified Arracacha Starch Films Characterization and Its Potential Utilization as Food Packaging

Abstract

Background: The use of petroleum-based plastics has increased in recent years. These materials are resistant and economically competitive. However, the environmental pollution caused by these is very high. For this reason, some research has focused on the alleviation of this environmental problem, mainly through the development and use of biodegradable polymers. The food industry as an economic dynamic sector is looking for new environmental and secure alternatives for the consumer welfare. In packaging sector, materials should be renewable and final products must be recyclable, innovative and economically competitive. New starch sources could be an adequate alternative. Objetive: The main objective in this research project was to evaluate the chemical modification of arracacha starch, testing different plasticizer concentrations, as a raw material for food biodegradable packaging production. Methods: The arracacha native starch was acetylated or oxidized to produce biodegradable films. The starches were characterized by infrared spectroscopy, scanning electron microscopy, x-ray diffraction and volumetric techniques. Results: Films made with acetylated starch presented more transparency. Native starch films had lower water solubility and greater stability in acid and alkaline conditions. The effect of alkaline conditions was higher than the acid conditions for the three types of films in all treatments. Conclusion: Physicochemical properties of the films were directly influenced by the amount of plasticizer used and by the starch modification type. The physicochemical and microbiological tests of the meat show the possible use of starch films for packaging.

Arracacia Xanthorrhiza Acetylated Starch: A New Excipient for Controlled Drug Delivery

“…3. shows signs at 14.9 °, 17.1 °,18.4, 21.7 °, 23.3 °, which coincides with that reported by other authors [27], where the signal at 17 ° and the double peak at 22 ° and 24 ° are characteristics of the starch of A. Xanthorrizha. The crystalline pattern was not affected by acetylation in the working conditions (low DS), which agrees with some authors [28].…”

“…Contact of acetylated material with water during the obtaining process tends to form a hydrophilic, adherent gel that could promote particle coalescence [26]. This coalescence is explained by the intergranular aggregation, which can be caused by interaction between functional groups due to an increase in the hydrogen bonds and therefore intergranular agglomeration [27].…”

Thermoplastic starch (TPS)-based composite films for wastewater treatment: synthesis and fundamental characterization

“…The acetyl group in UTPS/ISC 2 /SICNCs acted as a spacer and prevented the starch chains from getting too close, resulting in more interstitial space between the starch molecules [ 64 ]. Compared with the UTPS/ISC 2 film, the SICNCs can capture this space and enhance the interaction with polymers, increasing the integrity of the film structure, as a consequence its tensile strength raised.…”

Effects of Different Processing Techniques and Sol-Gel Coating on Physical Properties of Starch and Clay-Based Biocomposite Material

“…The films were subjected to FT-IR analysis (Thermo Scientific Nicolet iS50 FT-IR, Dreieich, Germany) to examine the functional groups' existence. All FT-IR spectra were recorded at room temperature between 4000 and 600 cm −1 after 32 scans with a spectral resolution of 4 cm −1 using Thermo Fisher Scientific OMICS software (Medina et al, 2012).…”