与蓝提取物结合的凝/聚乙醇膜的开发,用于的新鲜度检测
Bárbara Teixeira Gomes1, Meirielly Jesus2, Joana Santos2
1Food Technology Department, Federal University of Viçosa, Viçosa 36570-900, Brazil.
Polymers
|August 28, 2025
概括
这项研究开发了蓝提取物注入膜,用于的新鲜度监测. 原始蓝提取物薄膜 (FB) 显示出优异的特性和可见的颜色变化表明腐败,为食品质量保证提供了实用,可持续的解决方案.
科学领域:
- 材料科学:开发功能性聚合物薄膜.
- 食品科学:用于食品质量监测和保质期评估.
- 分析化学:使用色度指标检测损坏.
背景情况:
- 聚乙烯醇 (PVA) 和凝 (GL) 是生物相容的聚合物,有可能用于活性包装.
- 蓝提取物含有丰富的素和化合物, 具有抗氧化和pH敏感性.
- 开发可视化显示食品腐败的智能包装对于减少食品浪费和确保消费者安全至关重要.
研究的目的:
- 评估包含不同蓝提取物的PVA-GL薄膜的物理,化学,机械,热和拓性质.
- 评估这些薄膜作为监测新鲜度的色度指标的有效性.
- 确定最佳的蓝提取物分数,以制定有效和实用的新鲜度指标.
主要方法:
- 用原始蓝提取物 (FB),提取物 (FF) 和酸提取物 (FA) 制备PVA-GL薄膜.
- 薄膜的特性包括机械性 (Young的模量),热性 (降解特征),结构性 (形态),吸水性,膨胀性和可溶性.
- 在7天内在6.5±1°C下储存时评估FB和FA膜的色度反应.
主要成果:
- 与FF和FA薄膜相比,含有原始蓝提取物 (FB) 的薄膜具有更高的物理,化学,机械和热稳定性.
- 在存7天后,FB和FA膜呈现出明显的颜色变化 (紫色到绿色/棕色),与腐烂指标相关.
- 加入蓝提取物减少了水的吸收,胀和溶解度,FF的溶解度最低 (16.14%).
结论:
- 与蓝提取物相结合的PVA-GL薄膜是监测新鲜度的有效pH敏感指标.
- 原始蓝提取物薄膜 (FB) 显示出最佳的整体性能和实际视觉检测能力.
- 这些以蓝为基础的指标片为食品质量保证和减少食品浪费提供了可持续的方法.
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