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基于PHBV和Horchata生产中的纤维素残留物的生物复合材料

Anita Patrón-Espá¹, María Eugenia Martín-Esparza¹, Amparo Chiralt¹

¹Instituto Universitario de Ingeniería de Alimentos-FoodUPV, Universitat Politècnica de València, Camí de Vera s/n, 46022 València, Spain.

|April 12, 2025

概括

生物降解的包装膜是使用老虎坚果horchata固体残留物 (HSR) 和Poly 3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) 创建的. 这些活性包装材料为食品保存提供抗氧化和阻光的特性.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
食品科学食品科学食品科学

背景情况:

农业产业残留物为包装材料提供可持续的替代品,促进生物降解性和循环经济原则.
聚3-基酸-co-3-基酸 (PHBV) 是一种可生物降解的聚合物,具有包装应用的潜力.
虎 (Horchata) 固体残留物 (HSR) 是一个未充分利用的农业工业副产品.

研究的目的:

开发和描述生物降解复合膜使用PHBV和HSR在不同的比例.
评估这些复合材料作为活性食品包装材料的适用性.
评估HSR结合对薄膜特性的影响,包括微观结构,机械,屏障,热和抗氧化特性.

主要方法:

复合膜是通过将HSR纳入PHBV矩阵以不同的重量百分比来制备的.
描述包括分析微观结构,水含量/溶解度,机械性能 (抗拉强度,破裂时延长),屏障性能 (水蒸气),热性能,总含量和抗氧化能力.
电影被评估为其作为活性食品包装的潜力.

主要成果:

纳入HSR导致不透明,更深的薄膜,改变了机械和屏障性能.
水蒸气屏障容量下降,拉伸强度和破裂时的延伸显著减少 (分别为43-81%和46-77%).
薄膜刚度保持或增加至20%的HSR,同时增强抗氧化能力和阻光的能力,总醇含量从9至34毫克GAE/100克薄膜增加到34毫克GAE/100克薄膜.

结论:

由于其抗氧化和阻光的特性,PHBV/HSR复合材料显示出作为活性包装材料的潜力.
虽然机械和水屏障性能受到损害,但对食品保存而言,功能上的好处是显著的.
进一步的研究可以优化HSR内容,以平衡功能性质和机械完整性,以改进食品包装解决方案.

关键词:

抗氧化能力的抗氧化能力.压缩成型压缩成型刚性刚性刚性刚性虎子坚果的虎子坚果总醇含量总醇含量

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