Nanostructured poly(lactic acid)/soy protein/HPMC films by electrospinning for potential applications in food industry

Date

2019-03-01

Author

Aydogdu, Ayca
Yıldız, Eda
Ayhan, Zehra
Aydoğdu, Yıldırım
Şümnü, Servet Gülüm
Şahin, Serpil

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

260
views

0
downloads

As an alternative to oil based materials, there is a demand for easily degradable packaging materials. With this regard, the objective of this study is to produce bilayer nanofiber sheets composed of Poly (lactic acid) (PLA) and soy protein, hydroxypropyl methylcellulose (HPMC) and combination of them by using electrospinning. In addition, it was aimed to analyze morphological, optical, thermal properties of films and investigate permeability characteristics. Homogenous nanofibers were successfully collected onto PLA sheets. The solution containing HPMC had the highest viscosity and the lowest electrical conductivity values. Therefore, HPMC based nanofibers had the highest the average diameter values. Combining nanofibers with PLA sheets decreased transparency as compared to the transparency of neat PLA, it also did not improve permeability values. When the thermal properties of PLA/nanofibers were examined it was observed that while PLA sheet showed one stage degradation, bilayer films had two stage degradation. Soy protein containing nanofibers showed higher thermal stability. The FTIR spectrum of PLA/nanofiber sheets displayed the chemical characteristics of both PLA and nanofibers. PLA/nanofiber sheets obtained by electrospinning can be suggested in packaging of light sensitive foods.

Subject Keywords

Nanobiocomposite, Electrospinning, PLA, Soy protein, Packaging, Nanofiber

URI

https://hdl.handle.net/11511/46249

Journal

EUROPEAN POLYMER JOURNAL

DOI

https://doi.org/10.1016/j.eurpolymj.2019.01.006

Collections

Department of Food Engineering, Article

Suggestions

OpenMETU
Core

UTILIZATION OF CURCUMIN AND BIODEGRADABLE POLYMERS IN INTELLIGENT AND ACTIVE FOOD PACKAGING YILDIZ, Eda; Şümnü, Servet Gülüm; Kahyaoğlu, Leyla Nesrin; Department of Food Engineering (2022-12-21) The main purpose of this study is to produce smart and active packages with curcumin using biodegradable polymers. To fulfill this aim, two different film making methods namely electrospinning and casting were used. Firstly, to take benefit of the halochromic properties of curcumin, it was encapsulated into chitosan/PEO based nanofibers to monitor food freshness. The average diameter of the fibers was found to be between 283 ± 27 nm and 338 ± 35 nm. It was concluded that increasing the chitosan amount in na...
Stable, Ductile and Strong Ultrafine HT-9 Steels via Large Strain Machining El-Atwani, Osman; Kim, Hyosim; Gigax, Jonathan G.; Harvey, Cayla; Aytuna, Berk; Efe, Mert; Maloy, Stuart A. (2021-10-01) Beyond the current commercial materials, refining the grain size is among the proposed strategies to manufacture resilient materials for industrial applications demanding high resistance to severe environments. Here, large strain machining (LSM) was used to manufacture nanostructured HT-9 steel with enhanced thermal stability, mechanical properties, and ductility. Nanocrystalline HT-9 steels with different aspect rations are achieved. In-situ transmission electron microscopy annealing experiments demonstrat...
Characteristics of polylactide composites involving montmorillonite and boron compounds Akar, Alinda Öykü; Hacaloğlu, Jale; Department of Polymer Science and Technology (2016) Poly(lactic acid) (PLA) is a biodegradable and biocompatible polymer and it is accepted as a promising alternative to the petroleum based materials. The main objective of this study is to investigate the effect of the type and the amount of boron compounds with the addition of nanoclay to thermal, mechanical properties and flame retardancy of poly(lactic acid) (PLA) based nanocomposites. By this aim, zinc borate (ZnB), benzene-1,4-diboronic acid (BDBA) and Cloisite 30B (C30B) are used as an additive in PLA ...
Kinetic modeling of enzymatic hydrolysis of pretreated kitchen wastes for enhancing bioethanol production Çekmecelioğlu, Deniz (Elsevier BV, 2013-03-01) It is well known that use of low cost and abundant waste materials in microbial fermentations can reduce product costs. Kitchen wastes disposed of in large amounts from cafeterias, restaurants, dining halls, food processing plants, and household kitchens contain high amounts of carbohydrate components such as glucose, starch, and cellulose. Efficient utilization of these sugars is another opportunity to reduce ethanol costs. In this study, the effect of pretreatment methods (hot water, acid solutions, and a...
3D printing of polymeric tissue engineering scaffolds using open-source fused deposition modeling Alagoz, Ayse Selcen; Hasırcı, Vasıf Nejat (2020-08-01) Open-source printing is a field where the cost of printing additive manufacturing products is cheaper due to more economical software and parts to construct a product including those of tissue engineering scaffolds. In this manuscript, fused deposition modeling (FDM) is used as the main avenue of open-source use in 3D printing of tissue engineering scaffolds. Additive manufacturing enables the researchers to build 3D products with interior and exterior architectures precisely defined and produced using open...

Citation Formats

A. Aydogdu, E. Yıldız, Z. Ayhan, Y. Aydoğdu, S. G. Şümnü, and S. Şahin, “Nanostructured poly(lactic acid)/soy protein/HPMC films by electrospinning for potential applications in food industry,” EUROPEAN POLYMER JOURNAL, pp. 477–486, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46249.