开发基于原和基甲基纤维素的活性薄膜,其中包含果聚enol,用于食品包装
Pingping Tang1, Xia Li1, Haiyun Li1
1College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541006, China.
International journal of biological macromolecules
|June 9, 2024
概括
这项研究开发了可生物降解的活性包装膜,使用与果聚烯 (AP) 混合的原蛋白 (COL) 和基基甲基纤维素 (HPMC). 这些膜表现出增强的抗氧化,抗菌和屏障特性,延长食品的保质期.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物科学 聚合物科学
背景情况:
- 可生物降解的活性包装膜对于延长食品的保质期至关重要.
- 原蛋白 (COL) 和基甲基纤维素 (HPMC) 是用于薄膜开发的有希望的生物聚合物.
- 结合天然抗氧化剂,如果多 (AP) 可以增强膜的功能.
研究的目的:
- 开发和描述由含果聚烯 (AP) 的COL-HPMC混合物制成的可生物降解活性包装薄膜.
- 研究不同AP含量对薄膜物理化学,结构和功能性质的影响.
- 评估开发的活性包装膜的抗氧化,抗菌和食品保存能力.
主要方法:
- 制备不同AP度的COL-HPMC混合薄膜.
- 混合溶液的风湿学分析.
- 福里埃变换红外光谱 (FTIR) 用于结构分析.
- 评估机械强度,紫外线阻断,耐水性和热稳定性.
- 对抗氧化活性进行DPPH自由基清除试验.
- 对大肠杆菌和金黄色杆菌进行抗菌检测.
- 在储存期间对绿胡中维生素C氧化和MDA积累的评估.
主要成果:
- AP的结合增加了溶液粘度和减少了流动性,表明了COL,HPMC和AP之间的键相互作用.
- 随着AP含量的增加,COL-HP-AP膜的结构变得更加紧.
- 机械强度,紫外线阻断,耐水性和热稳定性都被AP显著提高.
- 抗氧化剂活性随着AP含量增加,达到94.23%的清除率,在5%的AP中.
- 含有5%重量AP的薄膜显示出显著的抗菌作用,并通过防止维生素C氧化和MDA积累,有效地保持了绿胡的质量.
结论:
- 与AP结合的COL-HPMC混合膜显示了增强的结构完整性和改进的物理化学和功能性质.
- 开发的活性包装膜具有强大的抗氧化和抗菌活性,使其适合食品保存.
- 这些COL-HP-AP薄膜在食品包装行业具有很大的应用潜力,可以延长产品的保质期并保持质量.
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