智能抗菌系统基于酶响应的高甲烯-乳清蛋白隔离纳米复合物,用于保存新鲜切割的果
Ying Xin1, Zhenzhen Liu1, Chenhao Yang1
1College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
International journal of biological macromolecules
|September 25, 2023
概括
这项研究开发了一种智能,响应敏捷的皮克林乳液,使用乳清蛋白分离物和pectin来输送西红精油. 这种创新的食品保存方法有效地保护新鲜切割的果免受损坏,通过释放抗菌剂来响应自然酶.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 新鲜切割的果容易受到微生物的破坏.
- 对抗微生物药物的控制释放对于有效的食品保存至关重要.
- 智能响应系统为食品安全提供了新的解决方案.
研究的目的:
- 开发一种对pectin甲基化酶 (PME) 敏感的皮克林乳液,用于控制释放提精油 (TEO).
- 为了利用这个系统来保存新鲜切割的果.
- 调查PME触发的脱和TEO释放机制.
主要方法:
- 从乳清蛋白分离物 (WPI) 和高甲氧丁 (HMP) 中形成W-H-II纳米复合物.
- 在Pickering乳液中使用W-H-II.稳定香精油 (TEO).
- 使用显微镜和细菌静止实验评估PME触发的脱和TEO释放.
- 在不同的储存条件下评估新鲜切割的果的保存效果.
主要成果:
- 由于HMP脱甲基化,W-H-II纳米复合体表现出pH稳定性和PME响应性.
- PME的存在触发了皮克林乳液中受控的TEO释放.
- 显微镜证实了不同PME活动 (0.252.50 U mL-1) 的乳液脱乳化.
- 用TEO Pickering乳液涂覆的新鲜切割的果在储存6天后显示0%的腐烂和低微生物数量 (<3.0 log CFU g-1).
结论:
- 成功开发了一种新的Pickering乳液系统,用于控制抗菌素释放.
- 这种智能系统通过防止腐烂和微生物生长,有效地保护新鲜切割的果.
- 这项研究提出了一个有前途的策略,可以延长新鲜切割产品的保质期.
更多相关视频
11:47Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods
Published on: December 9, 2022
1.7K
14:17The Portable Chemical Sterilizer PCS, D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
Published on: June 29, 2014
14.6K
相关概念视频
01:23Antimicrobial Proteins
1.0K
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
1.0K
01:28Antimicrobial Effectiveness
37
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
37
01:27Microorganisms in Agriculture and Food industry
62
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...
62
01:18Surface Membrane Barriers
1.1K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.1K