Biodegradable Starch/Chitosan Foam via Microwave Assisted Preparation: Morphology and Performance Properties

Zhang, Xian; Teng, Zhuangzhuang; Huang, Runzhou

doi:10.3390/polym12112612

Cited by 20 publications

(15 citation statements)

References 36 publications

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“…Metode microwave (MW) adalah metode non-konvensional dengan menggunakan gelombang mikro sebagai sumber energi eksternal yang mempercepat terjadinya reaksi kimia (microwave assisted reactions) dan pelarut terbatas (Azmir et al, 2013;Mashuni et al, 2021). Selain itu, sintesis kitosan dengan metode MW meningkatkan derajat deasetilasi dan menurunkan berat molekul (Sahu et al, 2009;Zhang et al, 2020).…”

Section: Alchemy Jurnal Penelitian Kimiaunclassified

Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida

et al. 2022

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Sintesis kitosan telah dikembangkan dengan metode pemanasan microwave (MW) menggunakan pelarut alkali untuk kebutuhan berbagai aplikasi yang salah satunya sebagai membran immobilisasi enzim. Penelitian membran kitosan dengan immobilisasi enzim asetilkolinesterase (AChE) sebagai elektrode biosensor terus berkembang untuk menghasilkan perangkat mutakhir yang dapat mendeteksi pestisida. Penelitian ini bertujuan untuk menghasilkan biosensor berbasis elektrode membran Au/Kitosan/GTA/AChE untuk deteksi pestisida karbaril yang memiliki batas deteksi yang rendah, sensitivitas yang tinggi, waktu respon cepat dan presisi yang baik. Kitosan dihasilkan dari isolasi kitin dari kulit udang menggunakan alat MW dan pelarut NaOH dengan daya 450 Watt selama 15 menit menghasilkan rendemen sebesar 31,50%. Karakterisasi FTIR kitosan diidentifikasi adanya gugus O–H, C–N, N–H amina, dan C=O dengan intensitas yang rendah serta derajat deasetilasi rata-rata 95,6 ± 0,1%. Komposisi elektrode membran Au/Kitosan/GTA/AChE menggunakan kitosan dengan variasi konsentrasi 2, 5, dan 8% (b/v) dan glutaraldehid (GTA) 25%, kawat Au dan diimobilisasikan enzim asetilkolinesterase (AChE). Elektrode membran Au/Kitosan 2%/GTA/AChE memiliki karakteristik yang baik dimana nilai sensitivitas sebesar 23,318 mV.dekade-1 pada rentang konsentrasi pestisida 10-7 – 10-1 µg mL-1 dengan batas deteksi (LoD) 1 × 10-7 µg mL-1. Waktu respon yang diperoleh yaitu pada rentang waktu 5– 7 menit dengan relative standard deviation (RSD) sebesar 0,588%. Biosensor yang dikembangkan menunjukkan sensitivitas, stabilitas dan reproduktifitas yang baik, sehingga elektrode membran Au/Kitosan/GTA/AChE menjanjikan untuk alat deteksi pestisida. Synthesis of Chitosan from Shrimp Shell as Electrode Membrane Material Au/Chitosan/GTA/AChE for Pesticide Detection. Chitosan synthesis has been developed using the heating by microwave (MW) method using alkaline solvents for various applications, one of which is an enzyme immobilization membrane. Chitosan membrane research with immobilization of the enzyme Acetylcholinesterase (AChE) as a biosensor electrode developed to produce advanced devices that can detect pesticides. This study aims to produce a biosensor based on Au/Chitosan/GTA/AChE membrane electrodes to detect carbaryl pesticides with a low detection limit, high sensitivity, fast response time, and good precision. Chitosan was produced from the isolation of chitin from shrimp shells using an MW device and NaOH solvent with a power of 450 Watts for 15 minutes to produce a yield of 31.50%. The FTIR characterization of chitosan identified the presence of O–H, C–H, C–N, N–H amine groups and C=O with low intensity and the average degree of deacetylation of 95.6 ± 0.1%. The composition of Au/Chitosan/GTA/AChE membrane electrodes used chitosan with various concentrations of 2, 5, and 8% (w/v) and glutaraldehyde (GTA) 25% on Au wire and immobilized with AChE enzyme. The Au/Chitosan 2%/GTA/AChE membrane electrode has good characteristics where the sensitivity value is 23.318 mV.decade-1 in the pesticide concentration range of 10-7 – 10-1 µg mL-1 with a detection limit (LoD) of 1 × 10-7 µg mL-1. The response time obtained is in the range of 5 ‒ 7 minutes with a relative standard deviation (RSD) of 0.588%. The developed biosensor shows good sensitivity, stability, and reproducibility, thus Au/Chitosan/GTA/AChE membrane electrodes are promising for pesticide detection.

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Section: Alchemy Jurnal Penelitian Kimiaunclassified

Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida

et al. 2022

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“…Keuntungan dari teknologi berbasis microwave yaitu dapat membantu pengurangan proses kebutuhan energi, waktu pemanasan relatif singkat, proses mudah dan tepat, pemanasan yang selektif, mutu produk akhir lebih baik, dan meningkatkan kualitas bahan yang dihasilkan (Ingole, 2015). Menurut Sahu et al (2009) and Setyawati et al (2016), metode microwave menghasilkan kitosan dengan derajat deasetilasi tinggi serta memiliki berat molekul yang rendah sehingga dapat diaplikasikan sebagai bahan biomedis (Zhang et al, 2020;Sahu et al, 2009;Journot et al, 2020).…”

Section: Alchemy Jurnal Penelitian Kimiaunclassified

Pemanfaatan Kitosan dari Cangkang Kepiting Bakau (Scylla serrata) dengan Metode Microwave sebagai Bahan Dasar Kapsul Obat

et al. 2021

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Cangkang kepiting bakau (Scylla serrata) mengandung senyawa kitin yang dapat ditransformasi menjadi kitosan sebagai bahan pembuatan kapsul obat. Proses transfomasi ini masih perlu untuk dikembangkan lanjut. Penelitian ini bertujuan untuk menghasilkan kapsul obat berbahan dasar cangkang kepiting bakau dengan metode microwave. Metode isolasi kitin dari cangkang kepiting bakau meliputi proses deproteinasi, demineralisasi, dan dekolorisasi. Sintesis kitosan menggunakan metode microwave (daya 450 watt selama 15 menit) dalam pelarut NaOH 50% (b/v) dengan perbandingan 1:20 (b/v), selanjutnya kitosan dihidrolisis menggunakan larutan HCl 20% (v/v) untuk menghasilkan glukosamin hidroklorida (GlcN HCl). Pembuatan kapsul obat dengan perbandingan GlcN HCl dan larutan sukrosa yaitu masing-masing 3:1, 3:3, dan 3:5. Rendemen kitosan yang diperoleh sebanyak 37,5% dengan derajat deasetilasi 83,8%. Kapsul obat diperoleh perlakuan terbaik pada perbandingan GlcN HCl-larutan sukrosa 3:1. Berdasarkan analisis terhadap spektra kapsul obat, diidentifikasi adanya gugus O−H, −CH3, N−H, C−N, C−O, dan β-1,4-glikosidik. Karakteristik sifat fisik menunjukkan bahwa kapsul obat memiliki kadar air 12,7%, uji waktu hancur 13 menit 34 detik dan kelarutan dalam asam 3 menit 17 detik. Hasil penelitian menunjukkan bahwa kitosan cangkang kepiting bakau telah memenuhi kriteria bahan dasar kapsul obat sesuai kriteria farmakope Indonesia.Utilization of Chitosan from Mangrove Crab Shell (Scylla serrata) using the Microwave Method as a Base Material for Medicinal Capsules. The mangrove crab shell (Scyllaserrata) contains a chitin compound potentially transformed into chitosan as an ingredient for medicinal capsules. The research on this transformation process needs further developments. This research aims to produce chitin-based medicinal capsules of mangrove crab shells by microwave methods. The chitin isolation method of mangrove crab shells covers the process of deproteinization, demineralization, and decoloration. The synthesis of chitosan used microwave methods (450 watts of power for 15 minutes) in the solvent of 50% NaOH (w/v) with a ratio of 1:20 (b/v). Chitosan was then hydrolyzed using 20% HCl (v/v) solution to produce glucosamine hydrochloride (GlcN HCl). Preparation of drug capsules with a ratio of GlcN HCl and sucrose solution, namely 3:1, 3:3, and 3:5, respectively. The chitosan yield was obtained as much as 37.5% with a deacetylation degree of 83.8%. The best treatment of the medicinal capsules was obtained on the ratio of GlcN HCl and sucrose solution 3:1. The FTIR analysis of medicinal capsules are identified by the presence of the O−H, −CH3, N−H, C−N, C−O, and β-1.4-glycosidic. The physical characterization showed that the medicinal capsules have a water content of 12.7%, the test of destroyed time of 13 minutes 34 seconds, and soluble in acid that is 3 minutes 17 seconds. The results show that chitosan prepared from mangrove crab shell is potentially used as a basic ingredient for medicinal capsules because it met the criteria for Indonesian pharmacopoeial capsules.

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“…The packaging industry has been one of the largest users of plastics for many years, nearly half of the volume produced is used to manufacture food packaging (Andersen et al, 1999;Chaireh et al, 2020;Engel et al, 2019;Salgado et al, 2008). This has created a great social, economic and global problem (Averous et al, 2000;Brodin et al, 2017;Cha et al, 2001;Cinelli et al, 2006;Zhang et al, 2020). New technologies for the production of recyclable and/or biodegradable packaging materials are required to solve this (Machado et al, 2020a;Park and Hettiarachchy, 1999;Szpiłyk et al, 2021;Yu et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Foamed bioplastics: a review

Combrzyński¹,

Özmen²

2021

Int. Agrophys.

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A b s t r a c t. Based on a literature review, the development and importance of foamed bioplastics in the context of conventional materials has been discussed in the paper. Raw materials, technological aspects, types of products (including a new generation of bioplastics), their advantages and disadvantages as well as user expectations are presented. Despite considerable progress, especially in the formulation of new raw material compositions, there is still a need to continue research work on the application of different techniques in the production of biodegradable porous packaging materials. It still remains the current primary goal -to produce products with physical characteristics that are comparable with those of petroleum based plastic.K e y w o r d s: physical properties, foams, porous materials, bioplastics, starch-based packaging materials

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Biodegradable Starch/Chitosan Foam via Microwave Assisted Preparation: Morphology and Performance Properties

Cited by 20 publications

References 36 publications

Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida

Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida

Pemanfaatan Kitosan dari Cangkang Kepiting Bakau (Scylla serrata) dengan Metode Microwave sebagai Bahan Dasar Kapsul Obat

Foamed bioplastics: a review

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