Study of the influence of ZnO addition on the properties of chitosan-banana starch bioplastics

Sapei, Lanny; Padmawijaya, Karsono Samuel; Sijayanti, Okky; Wardhana, Petrus Jaya

doi:10.1088/1757-899x/223/1/012044

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…Excessive addition of metal oxides led to films becoming brittle and cracking [ 90 ]. Additional work by Sapei et al suggested that the addition of metal oxides can also influence the mechanical properties of chitosan plastics; they found that adding zinc oxide to chitosan-banana starch plastics improved the tensile strength of the materials and decreased both the elongation and water uptake of the plastics [ 91 ].…”

Section: Applicationsmentioning

confidence: 99%

Chitin, Chitosan, and Nanochitin: Extraction, Synthesis, and Applications

2022

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Crustacean shells are a sustainable source of chitin. Extracting chitin from crustacean shells is ongoing research, much of which is devoted to devising a sustainable process that yields high-quality chitin with minimal waste. Chemical and biological methods have been used extensively for this purpose; more recently, methods based on ionic liquids and deep eutectic solvents have been explored. Extracted chitin can be converted into chitosan or nanochitin. Once chitin is obtained and modified into the desired form, it can be used in a wide array of applications, including as a filler material, in adsorbents, and as a component in biomaterials, among others. Describing the extraction of chitin, synthesis of chitosan and nanochitin, and applications of these materials is the aim of this review. The first section of this review summarizes and compares common chitin extraction methods, highlighting the benefits and shortcomings of each, followed by descriptions of methods to convert chitin into chitosan and nanochitin. The second section of this review discusses some of the wide range of applications of chitin and its derivatives.

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Section: Applicationsmentioning

confidence: 99%

Chitin, Chitosan, and Nanochitin: Extraction, Synthesis, and Applications

2022

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“…The inclusion of a plasticizers lowers polymers' contact and chain cohesion, hence the presence of glycerol influences biofilm elongation at break [27]. Therefore, this property was increased when the glycerol level in the biofilm composite was increased from 0.3 to 0.5% (Table 4).…”

Section: Mechanical Properties Of Biofilmmentioning

confidence: 99%

Biofilm packaging development and characterization from underutilized Anchote starch and Aloe vera extracts

Alemu,

Dadi

2024

JAFSB

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Article InformationBiofilms are the most feasible packing alternative for reducing postharvest losses and increasing the shelf life of agricultural products. The aim of this study was to develop and characterize biofilm using Anchote starch and Aloe vera gel extract. Biofilms were developed using different concentrations of Anchote starch, Aloe vera gel and glycerol. The physicochemical and mechanical properties of the developed biofilms were tested. It was found that different ratios of Anchote starch, Aleo vera gel, and glycerol had considerable effects on water solubility, moisture content, thickness, permeability and mechanical properties of the developed biofilms. The tensile strength of biofilm developed from 100% Anchote starch (control) was 59.75 MPa, while the biofilms developed with 5% Anchote starch, 0.4% Aloe vera gel and 0.4% glycerol as well as 4% Anchote starch, 0.4% Aloe vera and 0.5% glycerol had the lowest tensile strength, 16.98 MPa and 17.55 MPa, respectively. The water vapor permeability of the biofilm developed from Anchote starch was minimized when it was composited with Aloe vera gel and glycerol. The preferred physical and mechanical properties of the biofilm packaging were achieved by combining Anchote starch, Aloe vera gel and glycerol at the ratio of 5%, 0.4% and 0.4%, respectively.

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“…Sapei et al [7] made banana chitosan-starch bioplastics, utilizing a 70:30 ratio, and incorporated 30% glycerol as a plasticizer. ZnO with different concentrations of 1%, 3%, and 5% was each added to the biopolymer blend before casting to improve its mechanical properties.…”

Section: Study Of the Effect Of Zno Catalyst And Pva Addition To Degr...mentioning

confidence: 99%

“…Sago starch-based degradable plastics supported with ZnOnanarod can be used in the medical field, pharmaceutical industry, and potential food packaging. Sapei et al [7] conducted a study on the effect of ZnO addition on the properties of banana starchbased bioplastics with chitosan mixture. In this study, banana chitosan-starch bioplastics were made in a ratio of 70:30 in the presence of 30% glycerol as a plasticizer.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Degradable Plastics from Sago and Breadfruit Starch-Based with Addition of Zinc Oxide (ZnO) Catalyst and Polyvinyl Alcohol (PVA)

Dewi,

Sylvia,

Riza

2023

J. Kim. Sains Apl.

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Degradable plastic can be used as a substitute for commercial plastic. Degradable plastic made from starch with zinc oxide (ZnO) catalyst and polyvinyl alcohol (PVA) has biodegradable properties. This research used sago starch, breadfruit starch, ZnO catalyst, and PVA as additives to strengthen the mechanical properties of degradable plastic. The research methodology encompassed several stages, including the preparation of sago and breadfruit starch, the synthesis of degradable plastic, and the subsequent evaluation of its characteristics. Various concentrations of ZnO and PVA catalysts (10%, 20%, 30%, and 40%) were employed in this study. Mechanical characteristic test for degradable plastic showed that the tensile strength test for sago starch-based plastic with 40% ZnO catalyst and PVA was 2.31–3.96 MPa, while for breadfruit starch-based degradable plastic was 2.88–3.20 MPa. FTIR analysis revealed that the compound constituents of degradable plastics exhibit hydrophilic properties and readily interact with water, making them susceptible to natural degradation in soil. Furthermore, the thermal characteristics were examined using DSC, which indicated that sago starch-based degradable plastic (with ZnO 40% and PVA 40%) exhibited a thermogram peak at a temperature of 137.15°C, while the breadfruit starch-based plastic displayed a peak at 136.97°C. In terms of water absorption, the swelling index for sago starch-based plastic ranged from 18.35% to 65.26%, whereas for breadfruit starch-based plastic, it ranged from 19.91% to 64.06%. Notably, the lowest water absorption levels were observed at a ZnO concentration of 40% and a PVA concentration of 10%. The higher the PVA concentration, the more water was absorbed due to the hydrophilic nature of PVA, but the higher the ZnO concentration, the lower the water absorption. Degradation of plastics sago and breadfruit starch occurred for 20-28 days and by ASTM D-20.96 (degradable plastics should be decomposed before 180 days). The higher the concentration of ZnO catalyst added to bioplastics, the longer the degradation time, while the higher the PVA content, the faster the degradation time.

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Study of the influence of ZnO addition on the properties of chitosan-banana starch bioplastics

Cited by 8 publications

References 10 publications

Chitin, Chitosan, and Nanochitin: Extraction, Synthesis, and Applications

Chitin, Chitosan, and Nanochitin: Extraction, Synthesis, and Applications

Biofilm packaging development and characterization from underutilized Anchote starch and Aloe vera extracts

Characterization of Degradable Plastics from Sago and Breadfruit Starch-Based with Addition of Zinc Oxide (ZnO) Catalyst and Polyvinyl Alcohol (PVA)

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