开发带有紫外线保护和微生物保护的双薄膜复合食品包装,用于桃保存
Han Wang1, Yanjing Liao1, Guida Zhu1
1School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
Foods (Basel, Switzerland)
|July 12, 2025
概括
这项研究介绍了一种新型的双层奇托/pectin膜,配有葡萄皮的抗素和素,以增强桃的保存. 活性包装膜通过减少腐烂和保持水果质量,显著延长了保质期.
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
- 生物技术是生物技术.
背景情况:
- 传统的水果保存方法往往涉及有害残留物.
- 对于易腐烂的产品,需要有效,可持续的活性包装解决方案.
- 奇托和pectin是生物相容的聚合物,在食品包装中具有潜力.
研究的目的:
- 开发和评估一种新型的双层奇托/pectin薄膜,其中包含葡萄皮抗生素提取物 (GSAE) 和桃保存的素.
- 为了研究GSAE和素在活性包装系统中的协同效应.
- 在抗氧化,抗菌,抗紫外线和果物保存特性方面评估片的性能.
主要方法:
- 制造具有不同度的木质素 (1-15%) 的双层色素/pectin 薄膜.
- 葡萄皮抗生素提取物 (GSAE) 的加入,具有抗氧化和抗菌活性.
- 整合红素的紫外线阻断特性和结构完整性.
- 使用TGA,FT-IR,XRD,机械测试,气体屏障分析和UV-VIS光谱学进行表征.
- 对抗黄金葡萄球菌和大肠杆菌的抗菌功效的评估.
- 评估桃的保存,包括减肥,坚固性和保质期延长.
主要成果:
- 双层薄膜表现出出色的机械完整性和优化的气体屏障特性.
- 素的加入有效地减弱了紫外线辐射.
- 这些片显示出对黄金葡萄球菌和大肠杆菌的显著抑制.
- 15%的素薄膜 (PG/CL15%) 将桃的保质期延长了8天,减少了减肥,并保持了坚.
- 结构特征证实了通过键成功嵌入GSAE和素.
结论:
- 开发的双层奇托/pectin膜与GSAE和红素是一种高效的活性包装材料,用于桃的保存.
- 这种基于生物的包装系统为传统方法提供了可持续的替代方案,减少了腐烂和延长了保质期.
- 在单独的层中结合不同的功能组件的协同方法为各种易腐的产品提供了增强的性能和广泛的适用性.
相关概念视频
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
225
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
225
Microorganisms in Agriculture and Food industry
401
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
401


