Biodegradable starch/PVOH/laponite RD-based bionanocomposite films coated with graphene oxide: Preparation and performance characterization for food packaging applications

Sharma, Chetan; Manepalli, Pavan Harshit; Thatte, Aditya; Thomas, Sabu; Kalarikkal, Nandakumar; Alavi, Sajid

doi:10.1007/s00396-017-4114-9

Cited by 24 publications

(10 citation statements)

References 37 publications

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“…Sejak tahun 1950, plastik berkembang pesat menjadi material utama yang sangat luas penggunaannya bagi kehidupan manusia (UNEP, 2018). Plastik menjadi material yang sangat diminati karena keunggulannya diantaranya ringan, fleksibel, ekonomis, transparan, kuat, mudah dibawa, kedap air dan gas, tidak mudah pecah, dan harganya yang terjangkau (Sharma et al, 2017). Namun, kini keberadaan sampah plastik sudah dalam jumlah yang mengkhawatirkan.…”

Section: Pendahuluanunclassified

Karakteristik Bioplastik Berbahan Dasar Limbah Cair Tahu (Whey) dengan Penambahan Kitosan dan Gliserol

Rahadi

Setiani

Antonius

2020

JSAL

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Penggunaan plastik telah banyak membantu kehidupan manusia, namun saat ini keberadaanya dialam berada dalam jumlah yang mengkhawatirkan. Mayoritas plastik yang bersifat sekali pakai serta proses penguraian yang lambat membuat plastik menumpuk dan mencemari lingkungan. Disisi lain, Indonesia merupakan negara dengan tingkat konsumsi tahu yang tinggi. Produksi tahu menghasilkan whey yang biasa dibuang dan mencemari lingkungan. Alternatif penyelesaian terhadap dua masalah ini melalui pembuatan bioplastik. Penelitian ini bertujuan untuk menemukan variasi terbaik bioplastik dari limbah cair tahu dengan penambahan kitosan dan gliserol. Penelitian dilakukan menggunakan Rancangan Acak Lengkap Faktorial dua faktor (massa kitosan dan volume gliserol) dengan 9 variasi perlakuan. Karakterisasi bioplastik dilakukan terhadap parameter ketebalan, sifat mekanik, dan daya serap air. Hasil analisa menunjukkan hasil karakterisasi terbaik terdapat pada bioplastik perlakuan kitosan 2.3 g dan gliserol 1.5 mL atau K2G2. Variasi K2G2 yang memiliki rerata ketebalan 0.056 mm, kuat tarik sebesar 0.1625 kgf.cm-2 , perpanjangan putus sebesar 45%, modulus elastisitas sebesar 0.0036 kgf.cm-2 , dan daya serap air sebesar 26.08%. Kata kunci: daya serap air, ketebalan, kuat tarik, modulus elastisitas, perpanjangan putus

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Section: Pendahuluanunclassified

Karakteristik Bioplastik Berbahan Dasar Limbah Cair Tahu (Whey) dengan Penambahan Kitosan dan Gliserol

Rahadi

Setiani

Antonius

2020

JSAL

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“…These graphemic materials are chemically grafted or covalently functionalized with other organic and inorganic molecules (nanohybrids) [ 5 ] to be used as raw material in the manufacturing of solar cells [ 6 ], battery electrodes [ 7 ], biosensors [ 8 ], and prostheses [ 9 ], among others [ 10 , 11 ], where graphite and GO considerably improve the performance of the products. Nanohybrids grafted with organic molecules, as starch and fructose, are used due to their biodegradation [ 12 , 13 ] and biocompatibility as material for antibiotic recovery in milk [ 14 ], manufacturing of antimicrobial films for foods [ 15 , 16 ], formulation of bio-nano-compounds [ 17 , 18 , 19 , 20 , 21 , 22 ], supercapacitors [ 23 , 24 , 25 , 26 ], fuel cells [ 27 ], water purification membranes [ 28 , 29 , 30 ], biosensors [ 31 , 32 ], adhesives [ 33 ], and bone implants [ 34 ]. To synthetize these GO/starch [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ] and GO/fructose [ 27 ] nanohybrids, chemical processes include exfoliated graphite by sonication in an aqueous medium or polar solvent for several hours.…”

Section: Introductionmentioning

confidence: 99%

Covalent Functionalization of Graphene Oxide with Fructose, Starch, and Micro-Cellulose by Sonochemistry

et al. 2021

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In this work, we report the synthesis of graphene oxide (GO) nanohybrids with starch, fructose, and micro-cellulose molecules by sonication in an aqueous medium at 90 °C and a short reaction time (30 min). The final product was washed with solvents to extract the nanohybrids and separate them from the organic molecules not grafted onto the GO surface. Nanohybrids were chemically characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy and analyzed by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X-ray diffraction (XRD). These results indicate that the ultrasound energy promoted a chemical reaction between GO and the organic molecules in a short time (30 min). The chemical characterization of these nanohybrids confirms their covalent bond, obtaining a grafting percentage above 40% the weight in these nanohybrids. This hybridization creates nanometric and millimetric nanohybrid particles. In addition, the grafted organic molecules can be crystallized on GO films. Interference in the ultrasound waves of starch hybrids is due to the increase in viscosity, leading to a partial hybridization of GO with starch.

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“…All over the world, plastics usage in food packaging increases every day because of their diverse availability at relatively low costs. Also, the functional characteristics of plastic such as good optical properties, good tensile and tear strength, good permeability properties to oxygen and aroma compounds and heat seal ability favor its continual use [9] [10] [11]. The continuous plastic use, however, raises environmental and public health concerns since they are non-biodegradable [12] [13].…”

Section: Introductionmentioning

confidence: 99%

A Review of Packaging Options for Tomato Smallholder Farmers in Sub-Saharan Africa

Mibulo¹,

Banadda²,

Kiggundu³

2020

OJOPM

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Tomato production systems in developing countries are characterized by high post harvest losses. Due to the perishability of tomatoes, lack of awareness and knowledge of postharvest handling techniques, and poor packaging, farmers encounter 20%-50% postharvest losses. Farmers use traditional baskets, wooden, and plastic crates as packaging materials during transportation of tomatoes. However, tomatoes are often damaged due to the size and inner rough surface of crates and the difficulty in handling. The need for fresh tomato at the consumer requires a packaging that protects tomatoes against physical damages, increasing its shelf life prior to consumption. Packaging is important in ensuring quality, easing handling, extending the shelf life during storage and transportation of food products. However, the conventional use of synthetic-based materials for advanced packaging contributes to environmental problems because of their non-biodegradability and health concerns. This review article highlights the different materials used for packaging tomato and the prospects of using papaya, as a precursor for developing tomato packages.

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Biodegradable starch/PVOH/laponite RD-based bionanocomposite films coated with graphene oxide: Preparation and performance characterization for food packaging applications

Cited by 24 publications

References 37 publications

Karakteristik Bioplastik Berbahan Dasar Limbah Cair Tahu (Whey) dengan Penambahan Kitosan dan Gliserol

Karakteristik Bioplastik Berbahan Dasar Limbah Cair Tahu (Whey) dengan Penambahan Kitosan dan Gliserol

Covalent Functionalization of Graphene Oxide with Fructose, Starch, and Micro-Cellulose by Sonochemistry

A Review of Packaging Options for Tomato Smallholder Farmers in Sub-Saharan Africa

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