Volume 45, Issue 11 e15926
ORIGINAL ARTICLE

Optimization of nanocomposite films based on quinoa protein isolate incorporated with cellulose nanocrystal and starch

Mahdieh Safar Razavi Zade

Mahdieh Safar Razavi Zade

Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

Contribution: Methodology, Writing - original draft

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Mohammad Hossein Aghkhani

Corresponding Author

Mohammad Hossein Aghkhani

Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

Correspondence

Mohammad Hossein Aghkhani, Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Azadi square, Mashhad, Iran.

Email: [email protected]

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Mohammad Hossein Abbaspour-Fard

Mohammad Hossein Abbaspour-Fard

Department of Biosystems Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

Contribution: Writing - review & editing

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Fereshte Hosseini

Fereshte Hosseini

Department of Food Additives, Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad, Iran

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Zeinab Qazanfarzadeh

Zeinab Qazanfarzadeh

Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

Contribution: Methodology

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First published: 02 September 2021
Citations: 5

Abstract

This research aimed to prepare quinoa protein isolate (QPI) based nanocomposite films reinforced with starch and cellulose nanocrystals (CNC). The range of QPI, starch, and CNC contents were chosen as 60%–80%, 10%–30%, and 2.5%–7%, respectively, by mixture design approach. The effect of CNC and starch on physicochemical, mechanical, and barrier properties of the films were then investigated. The obtained results showed that the addition of starch and CNC improved the mechanical properties of films. The incorporation of CNC reduced the film water vapor permeability (WVP). In addition, transparency of the films increased with increasing protein and starch content and reducing CNC content. Furthermore, the optimal formulation of the composite was determined as 78.55% protein, 18.28% starch, and 3.17% CNC. Fourier transform infrared (FTIR) spectroscopy of the film prepared according to optimal formulation demonstrated the interaction of the film's constituents, and its scanning electric spectroscopy (SEM) image was in agreement with the physical and mechanical properties the nanocomposite film.

Novelty impact statement

Protein extracted from quinoa seeds using alkaline method with high purity (83%). The optimal formulation obtained with 78.55% protein, 18.28% starch, and 3.17% CNC. The optimal film is recommended for packaging of aromatic foodstuff.

DATA AVAILABILITY STATEMENT

The data set(s) supporting the conclusions of this article is(are) included within the article.

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