用梨叶和肉油/β-cyclopodextrin合成的银纳米颗粒来功能化素涂层:一种环保的梨保存方法
My Dong Lieu1, Thi Kim Thuy Dang2, Thuy Huong Nguyen3
1Faculty of Food Science and Technology, Ho Chi Minh City University of Industry and Trade, Ho Chi Minh City, Viet Nam; Department of Biotechnology, Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Ho Chi Minh City, Viet Nam.
International journal of biological macromolecules
|February 7, 2026
概括
银纳米粒子 (AgNPs) 和肉油相结合,协同增强抗真菌活性,降低梨保存所需度. 这种新的基托桑薄膜配方显著延长了保质期,并防止了损坏.
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
- 微生物学 微生物学
背景情况:
- 食品腐烂是一个主要问题,需要有效的保存方法.
- 像银纳米粒子 (AgNPs) 和肉油这样的抗真菌剂显示出希望,但需要优化.
- 素薄膜为活性化合物提供一种可生物降解的基质.
研究的目的:
- 评估AgNPs和肉油对梨保存的协同抗真菌功效.
- 为了研究这些剂对酸盐薄膜性质的影响.
- 评估组合配方在延长梨保质期方面的整体性能.
主要方法:
- 确定AgNP和肉油对黑色阿斯伯吉路斯菌的最低有效度.
- 加入AgNPs和肉油到奇托桑膜中.
- 在储存期间评估梨的质量属性 (呼吸速率,pH值,坚硬度,减肥,颜色,TSS,酶活性,疾病发生率).
主要成果:
- 观察到AgNPs (31.25ppm) 和肉油 (2.5μL/mL) 的协同效应,使药物度降低了50%.
- 组合配方 (基托桑与AgNPs和肉油) 完全抑制了8天的疾病发病率.
- 该配方通过延迟生理和生化变化,延长了梨的保质期.
结论:
- AgNPs和肉油表现出协同的抗真菌活性,使得有效的保存减少使用.
- 含有基托桑的薄膜作为生物屏障,提高了梨的质量和保质期.
- 这种方法为可持续的食品保存提供了一个有希望的策略,减少收获后的损失.
相关概念视频
02:14Leaving Groups
9.7K
The nature of leaving groups strongly influences the outcome of a nucleophilic substitution reaction.
In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
In a...
In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
In a...
9.7K
01:32Pinching-off of Coated Vesicles
4.2K
Vesicle budding is orchestrated by distinct cytosolic proteins such as adaptor proteins, coat proteins, and GTPases. To initiate vesicle budding, membrane-bending proteins containing crescent-shaped BAR domains bind to the lipid heads in the bilayer and distort the membrane to form a protein-coated vesicle bud. Adaptors proteins such as AP2 for clathrin-coated vesicles can nucleate on the deformed membrane. Finally, coat proteins such as clathrin or COPI and COPII assemble into a coat forming...
4.2K
01:12Clathrin Coated Vesicles
9.4K
Clathrin-coated vesicles use endocytosis to transport receptors and lysosomal hydrolases from the Golgi to the lysosome in the late secretory pathway. Clathrin-mediated endocytosis was the first described endocytic process, and Clathrin-coated vesicles remain one of the most well-studied transport vesicles. The molecular machinery that generates clathrin-coated vesicles comprises over 50 proteins that precisely coordinate vesicle formation. Cell surface receptors concentrated in indented sites...
9.4K
00:59COP Coated Vesicles
18.2K
Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of...
18.2K
01:33Coat Assembly and GTPases
4.5K
Vesicles incorporate different coat protein subunits in different cell locations, which changes the properties of the coat, such as the shape and geometry of the transport vesicles. Thus, vesicle coat proteins also play a significant role in cargo selection.
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
4.5K
02:27Basic Plant Anatomy: Roots, Stems, and Leaves
64.6K
The primary organs of vascular plants are roots, stems, and leaves, but these structures can be highly variable, adapted for the specific needs and environment of different plant species.
64.6K