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红龙果-大豆蛋白分离生物膜:紫外线阻断,抗氧化剂和改善的机械性能,以实现可持续的食品包装
Rushikesh A Prajapati1, Girirajsinh C Jadeja1
1Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat India.
Journal of food science and technology
|July 25, 2024
概括
红龙果皮提取物增强大豆蛋白隔离膜,用于活性食品包装. 这些膜提供了更好的紫外线保护,抗氧化特性,以及更好的食品保存,减少了果的腐烂.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 生物化学 生化学
背景情况:
- 可持续的食品包装对于减少浪费和延长保质期至关重要.
- 来自自然来源的生物活性化合物为活性包装材料提供了潜力.
- 豆蛋白分离物 (SPI) 是一种生物降解的聚合物,具有膜形成的潜力.
研究的目的:
- 用红龙果 (RDF) 皮提取物融入大豆蛋白分离物 (SPI) 膜中,开发一种活性生物膜.
- 评估RDF提取物对SPI薄膜的物理,机械和结构性质的影响.
- 评估开发的活性包装在保存新鲜切割的果方面的有效性.
主要方法:
- 将RDF提取物的不同度 (1-7 wt%) 纳入SPI薄膜矩阵.
- 薄膜的特性:阻紫外线,抗氧化活性,水蒸气透性,水溶性,机械强度 (抗拉强度,破裂时延长).
- 分析化学相互作用 (FTIR),结晶性 (XRD),热稳定性 (TGA),表面形态 (SEM,AFM) 和果保存中的应用.
主要成果:
- RDF提取物显著增强了SPI膜的紫外线阻和抗氧化特性.
- 增加的RDF提取物含量导致水蒸气透性降低,水溶性降低,破裂时延长,但拉伸强度增加.
- FTIR证实了RDF提取物和SPI之间的结合;XRD显示晶度降低. SEM和AFM显示了更密集的结构和增加的表面粗度.
- 含有RDF提取物的SPI薄膜显著减少了体重减轻,并在7天内保持了果中的可溶性固体总量.
结论:
- RDF提取物有效地产生活性生物膜,具有增强的功能性质,用于可持续的食品包装.
- 开发的活跃SPI片显示了改善新鲜产品的保质期和质量的潜力.
- 这项研究强调了农业废物 (龙果皮) 在高价值食品包装应用中的使用.
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