果皮衍生酸碳点结合基/普卢兰基活性包装薄膜用于面包包装
Yoonjung Sul1, Ajahar Khan1, Jun Tae Kim1
1Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, South Korea.
Colloids and surfaces. B, Biointerfaces
|October 31, 2024
概括
来自果皮废弃物的添加碳点增强了酸盐-普鲁兰膜,提高了机械强度,UV阻断和活跃食品包装应用的抗菌活性.
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
- 纳米技术 纳米技术
背景情况:
- 果皮的废弃物为新型纳米材料提供了可持续的来源.
- 活性包装膜需要增强的机械,屏障和抗菌性能.
研究的目的:
- 从果皮的废物中开发添加碳点 (N-TanCD).
- 使用N-TanCD纳入奇多-普鲁兰混合物制造活性包装膜.
- 评估这些片在食品保存方面的表现.
主要方法:
- 对N-TanCD的热水合成.
- 使用传输电子显微镜,光发光和里埃变换红外光谱学进行表征.
- 桑-普鲁兰复合膜 (CS/Pul@N-TanCD) 的制造和测试.
主要成果:
- 添加N-TanCD增加了22.8%的抗拉强度,并提供了显著的抗氧化活性 (DPPH: 62.7%,ABTS: 91.6%).
- 片表现出优异的紫外线阻 (UV-A: 98.8%,UV-B: 100%),同时保持透明度.
- CS/Pul@N-TanCD薄膜减少了L. monocytogenes和E. coli的污染,分别减少了超过4个和5个log CFU/mL.
- 包装面包在12天内保持了质量 (外观,水分,硬度,重量,细菌数量).
结论:
- 来自类废物的N-TanCD是有效的活性包装填充剂.
- CS/Pul@N-TanCD复合膜提供了卓越的机械,抗氧化,紫外线阻断和抗菌性能.
- 这种可持续材料显示了延长面包等食品的保质期的巨大潜力.
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