探索奇托桑植物提取物双层涂层:通过聚烯修饰来促进活性食品包装的进步
Saša Kaloper1, Olivija Plohl1, Sonja Smole Možina2
1University of Maribor, Faculty of Mechanical Engineering, Laboratory for Characterization and Processing of Polymers, Smetanova ulica 17, 2000 Maribor, Slovenia.
International journal of biological macromolecules
|May 13, 2024
概括
在聚烯食品薄膜上的新型双层涂层增强了活性包装. 酸盐和天然提取物提供抗氧化和抗微生物特性,改善食品安全和保质期.
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
- 聚合物化学 聚合物化学
背景情况:
- 活性包装 (AP) 对于延长食品的保质期和确保食品安全至关重要.
- 开发有效和安全的AP材料需要创新的涂层策略.
- 聚烯 (PP) 薄膜广泛使用,但通常需要对表面进行修改以提高功能.
研究的目的:
- 开发和描述PP食品薄膜的新型双层涂层,使用奇托和天然提取物.
- 评估开发的涂料的抗氧化和抗微生物特性.
- 评估涂层PP薄膜的稳定性和屏障性能.
主要方法:
- PP薄膜的紫外线臭氧激活,然后用基托 (CH/QCH) 和天然提取物 (针 - JUN,黑叶 - BBL) 进行双层涂层.
- 使用接触角 (CA),X射线光电子光谱 (XPS),减弱总反射率里叶变换红外光谱 (ATR-FTIR),扫描电子显微镜 (SEM) 和飞行时间二次离子质谱 (ToF-SIMS) 的表面表征.
- 生物活性评估包括抗氧化剂和抗菌剂对黄金色菌的测定,以及氧气透率和整体迁移极限 (OML) 的评估.
主要成果:
- 在PP薄膜上成功沉积CH/QCH和JUN/BBL双层,通过表面分析技术证实了这一点.
- 表面元素组成和功能组的显著增强,表明有效的涂层.
- 涂料显示氧气透性降低,植物提取物的强烈抗氧化活性,以及QCH的强烈抗菌活性.
- 单层CH和QCH涂层低于整体迁移极限 (OML).
结论:
- 新的双层涂层策略有效地赋予PP食品薄膜抗氧化和抗菌功能.
- 表面特性在控制包装的生物活性特性方面发挥着至关重要的作用.
- 这些先进的涂层为开发下一代活性食品包装提供了一个有希望的方法,其安全性得到提高,保质期延长.
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