Mechanical properties of cassava starch films as affected by different plasticizers and different relative humidity conditions

Lagos, Jeannine Bonilla; Vicentini, Nívea Maria; Santos, R.M. Cortez dos; Bittante, Ana Mônica Quinta Barbosa; Sobral, Paulo José do Amaral

doi:10.7455/ijfs/4.1.2015.a10

Cited by 24 publications

(6 citation statements)

References 35 publications

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“…Results showed that thickness of biopolymeric films was increased by increasing the concentration of glycerol, and it can be due to the fact that when plasticizer was added in the concentrated solution, a large amount of dry matter (starch+protein) leads to increase in thickness of films [69,70]. Similar finding was reported by Lagos et al that the increased thickness of biopolymeric films was observed when there was an incorporation of glycerol [71].…”

Section: Standardization Of Plasticizer (Glycerol)supporting

confidence: 80%

Mechanical Strength, Solubility, and Functional Studies of Developed Composite Biopolymeric Film

Bishnoi,

Chandla,

Talwar

et al. 2023

Journal of Food Processing and Preservation

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The study evaluated the use of corn, quinoa, and tapioca starches with glycerol to develop biopolymer films. The water binding and oil binding capacities of the starches were determined, and tapioca starch was found to have good film-forming properties and produce transparent films. During the study, starches and glycerol with concentrations of 6% w / v and 3% w / v respectively, were used to develop the biopolymer films. These starches were evaluated for water binding and oil binding, with capacities that ranged from 182.62 to 199.60% and 159.02 to 193.33%, respectively. Quinoa starch presented the highest final viscosity (3584.00 cP), followed by corn starch (3058.00 cP) and tapioca starch (2547.00 cP), which indicate that these starches possess an intermediate range of viscosities required for the development of biopolymeric films. Comparative studies of the properties of starches were done with the intention of developing better quality films among corn, quinoa, and tapioca starch as base raw materials. Tapioca starch exhibits a good film-forming property and produces transparent films. Further, based on the evaluation of physical and mechanical properties, tapioca starch (6% w / v ) with glycerol (3% w / v ) was found suitable as a base ingredient to develop the composite biopolymeric films. Results showed that the functional properties of tapioca starch-based films were significantly enhanced after the incorporation of whey protein isolate (WPI). Particularly, the solubility of different films prepared from tapioca with WPI as the base material was measured at three different temperatures, i.e., 5, 25, and 50°C, and significant differences in solubility at different temperature values were observed. An increase in the tensile strength (TS) after the incorporation of WPI in tapioca starch is an indication of the establishment of a strong starch-protein matrix network in developed biopolymeric films. Also, TGA analysis was performed to determine the percentage degradation in weight of the film samples. The SEM micrographs of the optimized composite biopolymeric film showed a smooth surface without surface cracks.

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Section: Standardization Of Plasticizer (Glycerol)supporting

confidence: 80%

Mechanical Strength, Solubility, and Functional Studies of Developed Composite Biopolymeric Film

Bishnoi,

Chandla,

Talwar

et al. 2023

Journal of Food Processing and Preservation

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“…It is known that water is an effective plasticizer for starchbased EFs. The water molecule is positioned between the polymeric matrix components, diminishing the hydrogenbonding interactions and decreasing the film's strength and rigidity (Bonilla-Lagos et al, 2015). For this reason, at low storage RH, intermolecular interactions between starch and plasticizers could remain stable without significantly affecting the EFs' mechanical properties.…”

Section: Puncture Resistance (Pr)mentioning

confidence: 99%

Effect of the storage relative humidity on the physicochemical properties of corn starch edible films obtained by a combination of extrusion process and casting technique

Calderón-Castro

Aguilar‐Palazuelos²,

Camacho‐Hernández³

et al. 2022

RMIQ

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“…Berbagai riset dan pengujian yang ada diantaranya, pengujian campuran yang berbeda bio plastic dari protein dan pati albumen (kentang dan jagung) telah digunakan sebagai bahan mentah untuk bioplastik dengan transparansi tinggi dan sifat mekanis yang sesuai [7]. Penggunaan plastisizer glycerol dan sorbitol dan pengaruh penambahan bahan tersebut pada pembuatan plastic dari bahan cassava starch (pati singkong) [8]. Penggunaan cassava starch juga diungkapkan pada penelitian biodegradable dan non-retrobiodegradable dari [9].…”

Section: Latar Belakang Masalahunclassified

Pengujian mekanis komposit rice starch – organic clay sebagai bahan alternatif kotak pendingin makanan

Arsana¹,

Wiryanta²,

Wiguna³

et al. 2021

JAMETECH

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Sampah plastik sudah menjadi permasalahan yang menjadi isu utama mengenai sampah di dunia saat ini. Produksi plastik di dunia sudah mencapai 8300 juta metrik ton (Mt) dari tahun 1950 sampai tahun 2015 dan 6.300 Mt adalah limbah berupa sampah plastik. Upaya yang bisa kita lakukan untuk mengurangi limbah plastik ini, dengan menggunakan plastik yang ramah lingkungan seperti bio-plastik. Bio-plastik dapat terurai di alam secara alami. Berbagai teknologi pembuatan bioplastik berdasarkan dari tumbuhan yang dapat tumbuh di Indonesia telah diperkenalkan, termoplastic tersebut menggunakan bahan dasar pati terutama corn starch (kanji) dan getah pohon pinus. Pembuatan plastic dari rice starch (beras) pada penelitian ini. dilakukan dengan bantuan penggunaan gliserol, citric acid dan clay (tanah liat) dan selanjutnya dilakukan pemanasan 100°C sampai 150°C. Komposit bioplastik yang terbentuk dicetak untuk pembuatan specimen uji tarik dan untuk material kotak pendingin makanan. Adanya campuran gliserol dan citric acid dapat membantu proses biodegradable komposit tersebut. Sedangkan campuran tanah liat digunakan untuk membantu matrik plastic agar lebih kuat secara struktur serta diharapkan akan dapat meningkatkan tahanan termalnya.

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Mechanical properties of cassava starch films as affected by different plasticizers and different relative humidity conditions

Cited by 24 publications

References 35 publications

Mechanical Strength, Solubility, and Functional Studies of Developed Composite Biopolymeric Film

Mechanical Strength, Solubility, and Functional Studies of Developed Composite Biopolymeric Film

Effect of the storage relative humidity on the physicochemical properties of corn starch edible films obtained by a combination of extrusion process and casting technique

Pengujian mekanis komposit rice starch – organic clay sebagai bahan alternatif kotak pendingin makanan

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