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Polymers
Special Issues
Application of Biopolymers in the Food Industry
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Application of Biopolymers in the Food Industry

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biomacromolecules, Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 2065

Special Issue Editors

Dr. Tao Huang

E-Mail Website
Guest Editor
College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
Interests: marine functional foods; aquatic product
Special Issues, Collections and Topics in MDPI journals
Dr. Wenwen Yu

E-Mail Website
Guest Editor
Department of Food Science & Engineering, Jinan University, Guangzhou 510632, China
Interests: functional carbohydrates; food packaging
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Biopolymers are natural substitutes that can be efficiently extracted from natural sources. Over the past few decades, these environment-friendly biopolymers and their composites have been repeatedly used in the food industry. As common natural biopolymers, protein, carbohydrates, and lipids play indispensable roles in meeting the nutritional requirements of neonates, adults, and the elderly and guaranteeing food quality. They also could be used for the release of delivery systems, food packaging, etc. To trace the development of biopolymers in the food industry, we are launching this Special Issue that focuses on recent advances in the applications of biopolymers in the food industry. All studies related to these topics are welcome.

Dr. Tao Huang
Dr. Wenwen Yu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • natural biopolymer
  • food quality
  • packaging
  • digestion and health

Published Papers (1 paper)

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Research

18 pages, 4709 KiB  
Article
Extraction and Physico–Chemical Characterization of Chitosan from Mantis Shrimp (Oratosquilla nepa) Shell and the Development of Bio-Composite Film with Agarose
by Suthasinee Yarnpakdee, Pimonpan Kaewprachu, Chalalai Jaisan, Theeraphol Senphan, Muralidharan Nagarajan and Sutee Wangtueai
Polymers 2022, 14(19), 3983; https://doi.org/10.3390/polym14193983 - 23 Sep 2022
Cited by 13 | Viewed by 1765
Abstract
Mantis shrimp (Oratosquilla nepa) exoskeleton, a leftover generated after processing, was used as a starting material for chitosan (CS) production. CS was extracted with different deacetylation times (2, 3 and 4 h), termed CS−2, CS−3 and CS−4, respectively, and their characteristics [...] Read more.
Mantis shrimp (Oratosquilla nepa) exoskeleton, a leftover generated after processing, was used as a starting material for chitosan (CS) production. CS was extracted with different deacetylation times (2, 3 and 4 h), termed CS−2, CS−3 and CS−4, respectively, and their characteristics and antimicrobial and film properties with agarose (AG) were investigated. Prolonged deacetylation time increased the degree of deacetylation (DDA: 73.56 ± 0.09–75.56 ± 0.09%), while extraction yield (15.79 ± 0.19–14.13 ± 0.09%), intrinsic viscosity (η: 3.58 ± 0.09–2.97 ± 0.16 dL/g) and average molecular weight (Mν: 1.4 ± 0.05–1.12 ± 0.08 (×106 Da)) decreased (p < 0.05). FTIR spectra of extracted CS were similar to that of commercial CS. Among all the CS samples prepared, CS−3 had the best yield, DDA, Mν and antimicrobial activity. Therefore, it was chosen for the development of composite films with AG at different ratios (CS−3/AG; 100/0, 75/25, 50/50, 25/75 and 0/100). As the proportion of AG increased, the tensile strength (29.96 ± 1.80–89.70 ± 5.08 MPa) of the composite films increased, while thickness (0.056 ± 0.012–0.024 ± 0.001 mm), elongation at break (36.52 ± 1.12–25.32 ± 1.23%) and water vapor permeability (3.56 ± 0.10–1.55 ± 0.02 (×10−7 g m m−2 s−1 Pa−1)) decreased (p < 0.05). Moreover, lightness of the films increased and yellowness decreased. CS−3/AG (50/50) composite film exhibited high mechanical and barrier properties and excellent compatibility according to FTIR and SEM analyses. According to these finding, mantis shrimp exoskeleton could be used to produce CS. The developed bio-composite film based on an appropriate ratio (50/50) of CS−3 and AG has potential for being used as food packaging material. Full article
(This article belongs to the Special Issue Application of Biopolymers in the Food Industry)
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