New processing and applications of waxy starch (a review)

Šárka, Evžen; Dvořāček, Václav

doi:10.1016/j.jfoodeng.2017.03.006

Cited by 84 publications

(42 citation statements)

References 114 publications

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“…Starch content increases the polymer film's sensitivity to humidity and polar plasticizers, all of which reduce the tensile strength. In dry environments, the loading of starch in synthetic polymer formulations tends to increase the tensile strength [41,76,110,111]. Starch is hygroscopic and therefore SNPs do not naturally have good moisture barrier properties.…”

Section: Film Propertiesmentioning

confidence: 99%

On the Use of Starch in Emulsion Polymerizations

et al. 2019

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The substitution of petroleum-based synthetic polymers in latex formulations with sustainable and/or bio-based sources has increasingly been a focus of both academic and industrial research. Emulsion polymerization already provides a more sustainable way to produce polymers for coatings and adhesives, because it is a water-based process. It can be made even more attractive as a green alternative with the addition of starch, a renewable material that has proven to be extremely useful as a filler, stabilizer, property modifier and macromer. This work provides a critical review of attempts to modify and incorporate various types of starch in emulsion polymerizations. This review focusses on the method of initiation, grafting mechanisms, starch feeding strategies and the characterization methods. It provides a needed guide for those looking to modify starch in an emulsion polymerization to achieve a target grafting performance or to incorporate starch in latex formulations for the replacement of synthetic polymers.

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Section: Film Propertiesmentioning

confidence: 99%

On the Use of Starch in Emulsion Polymerizations

et al. 2019

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“…Pati singkong utuh diambil dari bagian kulit (korteks) dan daging singkong (parenkima). Pengupasan dilakukan hanya pada kulit bagian luar (kulit gabus) yang akan membuat pekerjaan lebih efisien dan menghasilkan rendemen pati yang lebih banyak (Onwueme, 1978;Nuwamanya et al, 2012;Chavarriaga-Aguirre et al, 2016;Šárka et al, 2017).…”

Section: Hasil Dan Pembahasan Karakteristik Pati Singkong Utuhunclassified

Study of Characteristics Whole Cassava Starch Based Edible Film With Citric Acid Cross-Linking Modification

Kawiji

Atmaka²,

Lestariana³

2017

JTP

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ABSTRAKPada penelitian ini akan dipelajari pengaruh penggunaan asam sitrat sebagai agen crosslinking terhadap karakteristik dari edible film pati singkong utuh. Pati singkong utuh didapat dari ekstraksi pati singkong tanpa proses pengupasan yang akan membuat pekerjaan lebih efisien dan menghasilkan rendemen pati yang lebih banyak. Pembuatan edible film dilakukan dengan menggunakan 5 g pati singkong utuh, 2 ml gliserol, dan asam sitrat kristal (0%, 10%, 20%, dan 30% dari berat pati kering). Hasil analisis ANOVA dengan signifikasi 5% menunjukkan penambahan asam sitrat dapat meningkatan ketebalan dan kelarutan edible film serta penurunan laju tranmisi uap air dan pemanjangan. Penambahan asam sitrat 10% akan meningkatkan kuat tarik, pada penambahan 20% dan 30% akan menyebabkan penurunan kuat tarik edible film. Pada pengujian FTIR adanya reaksi cross-linking pada pembuatan edible film dari pati singkong utuh yang menghasilkan gugus ester dapat terbaca pada rentang 1725.

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“…Starch-based materials are attractive due to their biodegradability and wide range of applications, such as packaging, coating, agriculture, medicine, pharmacy, or even optoelectronics (Sarka et al, 2011(Sarka et al, , 2012Saiah et al, 2012;Xie et al, 2013;Ghavimi et al, 2015;Oleyaei et al, 2016a;Campos-Requena et al, 2017;Dufresne and Castano, 2017;Javanbakht and Namazi, 2017;Kuswandi, 2017;Liu G. et al, 2017;Liu S. et al, 2017;Sarka and Dvoracek, 2017, Ilyas et al, 2018, Ilyas et al, 2019. However, the melting temperature of native starch is higher than its degradation temperature.…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Starch Composites With Titanium Dioxide and Vancomycin Antibiotic: Preparation, Morphology, Thermomechanical Properties, and Antimicrobial Susceptibility Testing

et al. 2020

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Biodegradable composites of thermoplastic starch (TPS), titanium dioxide particles (TiO 2 ; average size 0.2 µm), and/or antibiotic (ATB; vancomycin) were prepared. Light and electron microscopy demonstrated that our recently developed, two-step preparation procedure yielded highly homogeneous TPS matrix with well-dispersed TiO 2 particles even for high filler concentrations (up to 20%). Oscillatory shear rheometry showed an increase in viscosity of TPS after addition of TiO 2 and ATB (from ca 2 × 10 5 Pa·s to ca 1 × 10 6 Pa·s at 1 rad/s and 120 • C). However, the high viscosity of TPS/TiO 2 /ATB composites did not prevent reproducible preparation of the composites by melt-mixing. Dynamic mechanical analysis proved a significant increase in shear moduli (storage, loss and complex modulus) of TPS after addition of TiO 2 and ATB (storage modulus increased from ca 25 MPa to more than 600 MPa at 1.33 rad/s at room temperature). Both rheological and mechanical properties indicated strong interactions among TPS matrix, filler, and antibiotics. The final TPS composites were soft enough to be cut with a sharp blade at room temperature, the TPS matrix was fully biodegradable, the TiO 2 filler was biocompatible, and the ATB could be released locally during the matrix degradation. Selected samples were tested for bacterial susceptibility using standard tube dilution test and disk diffusion test. The results proved that the ATB retained its bacteriostatic properties after the thermal processing of the composites. Therefore, the prepared TPS/TiO 2 /ATB composites represent a promising material for biomedical applications related to the local release of antibiotics.

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New processing and applications of waxy starch (a review)

Cited by 84 publications

References 114 publications

On the Use of Starch in Emulsion Polymerizations

On the Use of Starch in Emulsion Polymerizations

Study of Characteristics Whole Cassava Starch Based Edible Film With Citric Acid Cross-Linking Modification

Thermoplastic Starch Composites With Titanium Dioxide and Vancomycin Antibiotic: Preparation, Morphology, Thermomechanical Properties, and Antimicrobial Susceptibility Testing

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