开发具有抗菌和吸水功能的塑料/凝双层活性包装膜,用于保存羊羔
Shijing Wang1, Weili Rao1, Chengli Hou2
1College of Food Science and Technology, Hebei Agricultural University, Baoding 071000, China.
Food science of animal resources
|November 16, 2023
概括
这项研究开发了一种使用带有精油的塑料/凝膜的活性包装系统,通过抑制微生物生长和氧化,延长原料羊肉的保质期. 与单层薄膜相比,OPP/凝双层薄膜表现出优越的保存性能.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
- 包装技术 包装技术 包装技术
背景情况:
- 延长冷藏生羊羔的保质期对于减少腐败至关重要.
- 微生物生长,脂肪/蛋白质氧化和果汁流出会在储存期间对羊羔质量产生负面影响.
- 主动包装系统提供了一种有前途的方法来提高食品的保存.
研究的目的:
- 开发一种使用塑料/凝双层薄膜的活性包装系统,其中含有精油,用于原料羊肉保存.
- 评估这些薄膜在抑制微生物生长,防止氧化和管理果汁外流方面的有效性.
- 优化活性包装的成分和特性,以改善羔羊的保质期.
主要方法:
- 通过将石油衍生塑料 (面向型聚烯,聚乙烯二甲,聚乙烯) 涂上凝来开发双层薄膜.
- 在双层膜中加入精油 (子,菜).
- 评估膜的机械性能,屏障性能 (氧气,水分,光) 和吸水能力.
- 评估活性包装系统在抑制细菌生长的性能,在生羊羔和感官分析.
主要成果:
- 与单层凝膜相比,双层凝膜表现出更好的机械性能和屏障功能.
- 面向型聚烯/凝 (OPP/凝) 双层薄膜在小组成员中获得了最高的接受度.
- 精油降低了吸水能力,但在特定度 (20%的子,10%的菜) 中抑制了羔羊的细菌生长.
- 精油影响了薄膜颜色,降低了亮度和光传导率.
结论:
- 基于OPP/凝双层薄膜的活性包装系统适用于原料羊肉的保存.
- 这种系统在延长保质期方面比单层凝或塑料薄膜具有优势.
- 需要进行进一步的研究,以尽量减少精油含量,并在吸水后增强凝膜的机械强度.
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