Water Vapor Permeability of Chitosan/Zeolite Composite Films as Affected by Biopolymer and Zeolite Microparticle Concentrations

García, Mario A.; Rodríguez, M.T.; Castro, Cristina; Paz, Nilia de la

doi:10.1007/s41783-020-00092-y

Cited by 13 publications

(7 citation statements)

References 49 publications

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“…Chitosan films are tough, long‐lasting, flexible and difficult to tear. In addition, the film has moderate water vapor permeability and low oxygen permeability properties owing to its high crystallinity and the hydrogen bonds between chains 91 . Accordingly, these properties make chitosan an attractive polymer for the field of indicator film development.…”

Section: On‐package Indicator Films Based On Polysaccharidesmentioning

confidence: 99%

On‐package indicator films based on natural pigments and polysaccharides for monitoring food quality: a review

et al. 2022

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Deterioration of food quality and freshness is mainly due to microbial growth and enzyme activity. Chilled fresh food, especially meat and seafood, as well as pasteurized products, rapidly lose quality and freshness during packing, distribution and storage. Real‐time food quality monitoring using on‐package indicator films can help consumers make informed purchasing decisions. Interest in the use of intelligent packaging systems for monitoring safety and food quality has increased in recent years. Polysaccharide‐based films can be developed into on‐package indicator films due to their excellent film‐forming properties and biodegradability. Another important component is the use of colorants with visible color changes at various pH levels. Currently, natural pigments are receiving increased attention because of their safety and environmental friendliness. This review highlights the recent findings regarding the role of natural pigments, the effects of incorporating natural pigments and polysaccharides on properties of indicator film, current application and limitations of on‐package indicator films based on polysaccharides in some foods, problems and improvement of physical properties and color conversion of indicator film containing natural pigments, and development of polysaccharide‐based pH‐responsive films. © 2022 Society of Chemical Industry.

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Section: On‐package Indicator Films Based On Polysaccharidesmentioning

confidence: 99%

On‐package indicator films based on natural pigments and polysaccharides for monitoring food quality: a review

et al. 2022

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“…Pengaruh penambahan zeolit tersubstitusi perak pada beberapa komposit seperti CMC/PVA oleh Youssef, dkk [15], dan ke dalam poly(butylene succinate) oleh Wattanawong dan Ohng [21], serta penambahan zeolit ke dalam kitosan oleh Garcia, dkk [25]…”

Section: Pendahuluanunclassified

“…Hal ini disebabkan karena adanya penambahan zeolit yang berfungsi sebagai filler, filler dapat digunakan sebagai peningkat sifat mekanik suatu film [15][27]. Semakin banyaknya filler yang ditambahkan menyebabkan nilai kuat tarik semakin besar, dikarenakan adanya peningkatan interaksi gaya tarik-menarik antar molekul penyusun [25]. Penambahan zeolit/Ag dengan konsentrasi 0,025 dan 0,1 (%w/v) justru menunjukkan hasil nilai kuat tarik yang lebih rendah, hal ini dikarenakan adanya interaksi yang buruk antara zeolit/Ag dengan matriks kitosan/PVA [21].…”

Section: Pengujian Sifat Mekanikunclassified

“…Berdasarkan hasil penelitian yang telah dilakukan, diketahui bahwa penambahan zeolit/Ag ke dalam komposit kitosan/PVA menunjukkan hasil sifat mekanik yang lebih baik jika dibandingkan dengan penambahan zeolit/Ag ke dalam poly(butylene succinate) (PBS), yang dijelaskan dalam penelitian Wattanawong dan Ohng bahwa penambahan zeolit/Ag yang semakin banyak akan menyebabkan nilai kuat tarik dan persentase elongasi menurun [21]. Selain itu penambahan zeolit tersubstitusi perak ke dalam kitosan/PVA juga menunjukkan hasil sifat mekanik yang lebih baik jika dibandingkan dengan penambahan zeolit ke dalam kitosan, yang dalam penelitian Garcia, dkk dijelaskan bahwa penambahan zeolit ke dalam kitosan akan menyebabkan terjadinya penurunan nilai kuat tarik dan persentase elongasi pada film kitosan [25]. Hal berbeda ditunjukkan oleh hasil penelitian jika dibandingkan dengan penambahan zeolit/Ag ke dalam polimer CMC/PVA.…”

Section: Gambar 5 Hasil Nilai Modulus Youngunclassified

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Sifat Mekanik Film Kitosan/Pva Dengan Zeolit Tersubstitusi Perak Sebagai Kemasan Aktif

Maharani¹,

Nurzulla²

2022

UJC

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Penelitian mengenai penambahan zeolit tersubstitusi perak pada komposit kitosan/PVA telah dilakukan dengan variabel bebas yang dikenakan adalah persentase zeolit tersubstitusi perak (0,025;0,05;0,1; dan 0,2(% w/v)). Pertukaran ion antara zeolit dan perak dilakukan dengan metode impregnasi, ion Ag+ akan tersubstitusi ke dalam zeolit menggantikan ion Na+. Kemudian film kitosan/PVA/Zeolit-Ag yang telah diperoleh, dilakukan karakterisasi untuk mengidentifikasi gugus fungsional menggunakan FTIR dan untuk menganilisis morfologi menggunakan SEM serta diuji sifat mekaniknya menggunakan alat Autograph Microcomputer Control Universal Testing. Berdasarkan hasil penelitian yang telah dilakukan, diketahui bahwa penambahan zeolit/Ag dapat meningkatkan sifat mekanik film kitosan/PVA. Hasil uji kuat tarik yang dilakukan diperoleh bahwa film kitosan/PVA dengan penambahan zeolit/Ag 0,2 (% w/v) memiliki sifat mekanik yang paling baik yaitu nilai kuat tarik 32,733 Mpa, persentase elongasi 42,8%, dan nilai modulus young 0,765 Mpa. Hasil identifikasi gugus fungsional dengan FTIR, menunjukkan terjadi pergeseran pita serapan gugus O-H dan N-H pada film dengan penambahan zeolit/Ag ke pita serapan yang lebih rendah. Karakterisasi morfologi dengan menggunakan SEM menunjukkan hasil bahwa terdapat perbedaan morfologi permukaan antara kitosan/PVA sebelum dan sesudah ditambahkan zeolit tersubstitusi perak, hasil SEM menunjukkan terdapat partikel-partikel kecil berupa bulatan hitam yang merupakan zeolit/Ag. Kata kunci : Kitosan, Zeolit, Perak, Sifat Mekanik

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“…The prevention of transfer moisture between food and the surrounding atmosphere is one of the main goals of food packaging materials. In this sense, the water vapor permeability (WVP) value must be very low [ 91 ]. Water vapor from the surrounding atmosphere can transfer to packaged foods, threatening the shelf life of foods by affecting quality and causing spoilage.…”

Section: Chitosan (Cs)mentioning

confidence: 99%

Two Fascinating Polysaccharides: Chitosan and Starch. Some Prominent Characterizations for Applying as Eco-Friendly Food Packaging and Pollutant Remover in Aqueous Medium. Progress in Recent Years: A Review

2021

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The call to use biodegradable, eco-friendly materials is urgent. The use of biopolymers as a replacement for the classic petroleum-based materials is increasing. Chitosan and starch have been widely studied with this purpose: to be part of this replacement. The importance of proper physical characterization of these biopolymers is essential for the intended application. This review focuses on characterizations of chitosan and starch, approximately from 2017 to date, in one of their most-used applications: food packaging for chitosan and as an adsorbent agent of pollutants in aqueous medium for starch.

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Water Vapor Permeability of Chitosan/Zeolite Composite Films as Affected by Biopolymer and Zeolite Microparticle Concentrations

Cited by 13 publications

References 49 publications

On‐package indicator films based on natural pigments and polysaccharides for monitoring food quality: a review

On‐package indicator films based on natural pigments and polysaccharides for monitoring food quality: a review

Sifat Mekanik Film Kitosan/Pva Dengan Zeolit Tersubstitusi Perak Sebagai Kemasan Aktif

Two Fascinating Polysaccharides: Chitosan and Starch. Some Prominent Characterizations for Applying as Eco-Friendly Food Packaging and Pollutant Remover in Aqueous Medium. Progress in Recent Years: A Review

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