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| Study on the preparation and properties of citurs pericarp-based biodegradable film |
| Received:June 23, 2017 |
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| KeyWord:citrus pericarp;biodegradable film;mechanical properties;barrier properties |
| Author Name | Affiliation | E-mail | | LI Jian-sen | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | | | ZHAO Jiang-xin | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | | | JIANG Cheng | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | | | ZHANG Xu | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | | | WU He-jun | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | | | CHEN An-jun | College of Food Science, Sichuan Agricultural University, Yaan 625014, China | anjunc003@163.com |
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| Abstract: |
| To assess the preparation and performance of the a new biodegradable film, tape casting was applied to prepare a citrus pericarp based film using sodium alginate and carboxymethyl cellulose as a thickening agent, and glycerin as a plasticizer. The influence of different concentrations of citrus pericarp, thickening agent, and plasticizer on the mechanical and barrier properties of the film were investigated. As a result, each index was present well while citrus pericarp mass concentration was 1.5%, sodium alginate mass concentration was 0.1%, carboxymethyl cellulose mass concentration was 0.2% and glycerin mass concentration was 0.2%. At this composition,the tensile strength was 24.08 MPa, the elongation of the film at the breaking point was 15.73%, and the water vapor permeability was 1.686×10-12 g·cm·cm-2·s-1·Pa-1. In conclusion, the citrus pericarp is shown to be a good base for a biodegradable film.It produces a film with good mechanical and barrier properties and has promising potential for the production of new packaging materials. |
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