Preparation and Characterization of Microcrystalline Cellulose/Polylactic Acid Biocomposite Films and Its Application in Lanzhou Lily ( Lilium davidii var. unicolor ) Bulbs Preservation

Haiwei Ren, Siqi Li, Ming Gao, Xueye Xing, Yaqin Tian (), Zhe Ling, Weixia Yang, Lichao Pan, Wenguang Fan and Yi Zheng
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Haiwei Ren: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Siqi Li: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Ming Gao: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Xueye Xing: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Yaqin Tian: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Zhe Ling: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Weixia Yang: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Lichao Pan: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Wenguang Fan: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Yi Zheng: Department of Grain Science and Industry, Kansas State University, 101C BIVAP, 1980 Kimball Avenue, Manhattan, KS 66506, USA

Sustainability, 2023, vol. 15, issue 18, 1-18

Abstract: Green biodegradable bio-based films have gained interest in replacing petroleum-derived plastic packaging materials as a new preservation strategy for fruits and vegetables to alleviate environmental pressures. In this study, we aimed to develop novel biodegradable composite films based on microcrystalline cellulose (MCC) reinforced polylactic acid (PLA). Our results demonstrated that the addition of 3% MCC to PLA could improve its tensile strength. Scanning electron microscopy analysis revealed that MCC dispersed well in PLA at lower content while agglomerated at higher content. It was discovered that all four types of MCC/PLA biocomposite films could retard the color change of Lanzhou lily bulbs, accompanied by maintaining favorable total soluble solid, total sugar, total polyphenols, and flavonoid content, inhibiting the activities of phenylalanine ammonia-lyase and the content of malondialdehyde during storage. Moreover, the preservation effect of MCC/PLA biocomposite films on Lanzhou lily bulbs was evaluated using a membership function, and the SSS MCC/PLA biocomposite film demonstrated a favorable fresh-keeping effect. In conclusion, four types of MCC from different biomass materials added to PLA-based products can be beneficial in improving the attractive properties of biocomposite films. These films are expected to replace petroleum-derived plastics as a new packaging material for preserving Lanzhou lily bulbs.

Keywords: Lanzhou lily bulbs; preservation; polylactic acid; microcrystalline cellulose; biocomposite films; packaging material (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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