Natural polysaccharides and proteins-based films for potential food packaging and mulch applications: A review

被引:14
作者
Hassan, Faqrul [1 ]
Mu, Bingnan [1 ]
Yang, Yiqi [1 ,2 ]
机构
[1] Univ Nebraska Lincoln, Dept Text Merchandising & Fash Design, 234 GNHS Bldg, Lincoln, NE 68583 USA
[2] Univ Nebraska Lincoln, Dept Biol Syst Engn, 234 GNHS Bldg, Lincoln, NE 68583 USA
基金
美国农业部;
关键词
Degradable films; Food packaging; Mulch; Natural polymers; Properties; Cost analysis; WHEAT GLUTEN FILMS; LINKED SOY PROTEIN; GELATIN-BASED FILM; CROSS-LINKING; COMPOSITE FILMS; PHYSICOCHEMICAL PROPERTIES; FUNCTIONAL-PROPERTIES; MECHANICAL-PROPERTIES; PHYSICAL-PROPERTIES; BARRIER PROPERTIES;
D O I
10.1016/j.ijbiomac.2024.129628
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Conventional nondegradable packaging and mulch films, after reaching the end of their use, become a major source of waste and are primarily disposed of in landfills. Accumulation of non-degradable film residues in the soil leads to diminished soil fertility, reduced crop yield, and can potentially affect humans. Application of degradable films is still limited due to the high cost, poor mechanical, and gas barrier properties of current biobased synthetic polymers. In this respect, natural polysaccharides and proteins can offer potential solutions. Having versatile functional groups, three-dimensional network structures, biodegradability, ease of processing, and the potential for surface modifications make polysaccharides and proteins excellent candidates for quality films. Besides, their low-cost availability as industrial waste/byproducts makes them cost-effective alternatives. This review paper covers the performance properties, cost assessment, and in-depth analysis of macromolecular structures of some natural polysaccharides and proteins-based films that have great potential for packaging and mulch applications. Proper dissolution of biopolymers to improve molecular interactions and entanglement, and establishment of crosslinkages to form an ordered and cohesive polymeric structure can help to obtain films with good properties. Simple aqueous-based film formulation techniques and utilization of waste/byproducts can stimulate the adoption of affordable biobased films on a large-scale.
引用
收藏
页数:29
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