Bioplastic Properties of Sago-PVA Starch with Glycerol and Sorbitol Plasticizers

Lusiana, SW; Putri, Desiana Nuriza; Nurazizah, Ida Z; Bahruddin,

doi:10.1088/1742-6596/1351/1/012102

Cited by 28 publications

(10 citation statements)

References 12 publications

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“…Therefore, low molecular weight nonvolatile compounds are typically added as plasticizers to reduce fragility and increase flexibility (Antoniou et al., 2014). Among the most used plasticizers, glycerol and sorbitol can be cited due to their compatibility with most biopolymers and ease of obtaining (Lusiana et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization of wheat flour by product films: A technological and sustainable approach for bio‐based packaging material

Peron-Schlosser

Carpiné

Jorge

et al. 2021

Journal of Food Science

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This study aimed to evaluate the feasibility of the production of sustainable and biodegradable packages made from a little-explored by product of wheat-milling, the glue flour (GF). Films were produced by the casting method and the effect of the incorporation of glycerol, sorbitol, and GF in the properties of the films was investigated following the central composite rotational design (CCRD) approach. The results have been statistically analyzed by the response surface methodology and the desirability function. Due to the rich composition in amylaceous reserve (64.81%; 26% of amylose content), considerable protein content (11.23%), and fibers (8.28%), the GF proved to be suitable for use as a matrix in biopolymer films. All the properties were mainly influenced by the plasticizer type and GF concentration. Film plasticized with glycerol (run 13) was more flexible, had higher moisture (28.39%) content, and was more adhesive than the formulation made with sorbitol (run 11). Film elongation (ELO) ranged from 25.84% to 56.71%, and tensile strength (TS) from 0.10 to 2.8 MPa. The optimized process conditions were 8% for Cf, 0% for Cg, and 4% for Cs. Under these conditions, the films presented low moisture (12.1%), moderate solubility (35.5%) and TS (1.64 MPa), and high ELO (72.06%). This study showed that GF is a promising source for the development of biodegradable films.Practical Application: Films made from a by product of wheat flour (glue flour) have technological potential to be used as packaging for food products. The valorization of a by product of the agribusiness without pre-treatment for the production of biodegradable films was made possible. The study by casting technique is a previous for scale-up production.

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Section: Introductionmentioning

confidence: 99%

Optimization of wheat flour by product films: A technological and sustainable approach for bio‐based packaging material

Peron-Schlosser

Carpiné

Jorge

et al. 2021

Journal of Food Science

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“…All the samples had completely solubilized and degraded by day 3 except sample 9 (3% starch and 37.0711% glycerol), which started fragmentation on day 3 and completed biodegradation by day 5. However, the addition of the plasticizer assisted in easier and faster degradation of the films [ 43 , 44 ]. Nevertheless, all the film samples met the requirement of biodegradation established by (ASTM) D-6002 method [ 45 ], which standardizes complete degradation in 60 days.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Biodegradable Films Made from Taro Peel (Colocasia esculenta) Starch

et al. 2023

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Studies of renewable polymers have highlighted starch’s role to replace petroleum-based components to produce biodegradable films with plastic-like qualities. In this study, the novelty of taro peel starch (TPS) to produce such films using the casting technique is reported for the first time. A response surface method (RSM) approach was employed to optimize different concentrations of TPS (2.5–3.5%, w/w) and glycerol (25–35%, w/w) and investigate their effects on the physico-mechanical and water barrier properties of TPS films. TPS films showed a positive linear effect (p < 0.05) for thickness (0.058–0.088 mm), opacity (1.95–2.67), water vapor permeability (0.06–0.09 g∙m/m2∙kPa∙h), and cubic effect (p < 0.05) for moisture content (0.58–1.57%), which were linked to high starch concentrations when plasticized with glycerol. X-ray diffraction analysis of TPS films depicted “amorphous”-type crystalline structure peaks at 19.88°, while the thermogravimetric analysis of the film samples exhibited 75–80% of the weight loss of TPS film in the second phase between temperatures of 300 °C to 400 °C. All films exhibited homogenous, transparent surfaces with flexibility, and completely degraded in 5 days in simulated river water and composting soil environments, which confirmed TPS as a promising film polymer in food packaging.

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“…The bioplastics properties obtained have a smooth and transparent texture, as shown in Figure 1. The addition of glycerol results in smooth properties, caused reduces the rough texture of the bioplastics (Lusiana et al, 2019). The transparency is due to colorless materials.…”

Section: Bioplasticmentioning

confidence: 99%

The Heat Resistant Capabilities of Bioplastic Composites on Sago Hampas Starch-Al2O3

Amatullah¹,

Kemala²,

Irawadi³

2023

J. Rekayasa Kim. Lingkung.

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Sago hampas are a waste with a high starch content. The starch from sago hampas can be used as a raw material for bioplastics. However, because bioplastics have a lower heat resistance than conventional plastics, additives are required to increase heat resistance. Aluminum oxide can be used as a metal compound that acts as an additive to increase heat resistance. Bioplastics were created using a weight percentage of 0, 1, 3, and 5% Al2O3. DTA was used to determine the melting point of bioplastics, as well as their mechanical properties, density, and water resistance. The best results were identified using FTIR and SEM. The results showed that adding Al2O3 at 1, 3, and 5% increased the heat resistance of bioplastics with melting points of 270, 274, and 280 oC. Except for mechanical properties, the best results were obtained with a melting point of 280 oC, tensile strength of 3.41 Mpa, elongation of 38.66%, density of 5.52 g cm-3, and 80.28% water resistance for bioplastics with 5% Al2O3 that suitable on Indonesian National Standard 7188.7:2016. The FTIR analysis revealed that bioplastics containing Al2O3 experienced physical interactions. Morphological analysis revealed that Al2O3 was evenly distributed on the bioplastic's surface.

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Bioplastic Properties of Sago-PVA Starch with Glycerol and Sorbitol Plasticizers

Cited by 28 publications

References 12 publications

Optimization of wheat flour by product films: A technological and sustainable approach for bio‐based packaging material

Optimization of wheat flour by product films: A technological and sustainable approach for bio‐based packaging material

Characterization of Biodegradable Films Made from Taro Peel (Colocasia esculenta) Starch

The Heat Resistant Capabilities of Bioplastic Composites on Sago Hampas Starch-Al2O3

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