相关实验视频

Updated: May 6, 2026

Generation of Alginate Microspheres for Biomedical Applications

Generation of Alginate Microspheres for Biomedical Applications

Published on: August 12, 2012

基于粉的双层薄膜,功能化为含有素的MIL-101 (Fe),用于活性食品包装

Sa Liu¹, Yapeng Chen¹, XinKuan Li¹

¹College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China.

Carbohydrate polymers

|March 30, 2025

概括

这项研究开发了一种适应pH值的食品包装膜,其中嵌入了alliin@MIL-101(Fe) 以增强抗菌性能. 这种新型的双层膜有效地防止了细菌的腐烂,大大延长了水果的保质期.

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
生物技术是生物技术.

背景情况:

具有抗微生物特性的食品包装膜对于防止腐败至关重要.
水果中的细菌腐烂需要先进的包装解决方案来保持新鲜度.
目前的包装方法往往缺乏对损坏指标的响应能力.

研究的目的:

开发一种对pH值敏感的两层食品包装膜,其中包含alliin@MIL-101(Fe) 以增强抗菌活性.
调查片的结构,机械和屏障特性.
为了评估薄膜在延长水果的保质期方面的有效性.

主要方法:

使用氨基基改性粉和聚乙烯醇/聚乳酸制造双层薄膜.
将alliin@MIL-101(Fe) 作为抗菌剂用于pH响应释放的结合.
使用富里埃变换红外线 (FTIR) 和扫描电子显微镜 (SEM) 进行表征.
评估机械强度,传导性,抗氧化活性和透性.
评估使用草作为模型延长保质期.

主要成果:

通过FTIR和SEM成功合成了一种具有网状结构的交联薄膜.
在酸性条件下,在36小时内达到74%的累积阿林释放.
证明了增强的抗拉强度 (34.771 MPa),降低的透射率和83%的DPPH自由基清除.
报告的低水蒸气 (7.62 × 10−16 [g/(m2 ‧ 24h ‧ 0.1mm)) 和氧气透率 (6.83 m2/24h/0.1MPa).
降低了水分含量 (10.99%) 和水溶性 (20.77%).

结论:

开发的pH响应复合膜具有出色的抗菌性能和改善的物理特性.
薄膜有效地将草的保质期从2天延长到7天.
这种创新的包装材料为减少食物浪费和提高食品安全提供了一个有希望的解决方案.

关键词:

艾琳·艾琳·艾琳在线阅读抗氧化剂和抗微生物药物.保护膜的保存方法持续释放的持续释放响应pH的反应性

更多相关视频

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches

Published on: October 8, 2021

Development and Characterization of Fusidic Acid-Loaded Alginate-Aloe vera Based Hydrogel FilmWound Healing

Development and Characterization of Fusidic Acid-Loaded Alginate-Aloe vera Based Hydrogel FilmWound Healing

Published on: December 13, 2024

相关概念视频

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...

Modified-Release Drug Delivery Systems: Stimuli-Activated

Modified-Release Drug Delivery Systems: Stimuli-Activated

Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also...

Oral Drug Delivery Systems: Delayed-Release Systems

Oral Drug Delivery Systems: Delayed-Release Systems

Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...