动物食品新鲜度的视觉色度测量通过Juglone装载的糖水凝来感知
Lanjing Wang1, Weiyi Yan1, Aijun Li1
1Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
Foods (Basel, Switzerland)
|July 29, 2025
概括
一种新的juglone加载的 agarose水凝 (Jug@AG) 提供了对总挥发性基本 (TVB-N) 的视觉色度检测,从而可以实时监测食品的新鲜度. 这种传感器可以检测低水平的TVB-N,确保动物来源的食品安全.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 监测食品的新鲜度对于食品安全至关重要.
- 总挥发性基本 (TVB-N) 是食品腐败的一个指标.
- 视觉色度测量方法提供了方便的食品新鲜度检测.
研究的目的:
- 开发一个可视色度传感器,用于总挥发性基本 (TVB-N).
- 评估传感器在检测食物腐烂方面的性能.
- 为了实现实时动态监控动物性食品的新鲜度.
主要方法:
- 用juglone加载的亚加洛斯水凝 (Jug@AG) 的制备.
- 在不同度下对TVB-N气体进行色度检测.
- 传感器应用于添加的猪肉和鱼样.
- 在不同的存储条件下监测颜色变化和颜色差值 (ΔC).
主要成果:
- Jug@AG水凝显示出明显的颜色变化 (黄色到棕色),TVB-N度增加.
- 在8分钟内,TVB-N低至0.05 mg/dm3的敏感检测.
- 最低可观察到的TVB-N水平为8.43 mg/100 g (猪肉) 和8.27 mg/100 g (鱼类).
- 在食物腐烂过程中,ΔC,TVB-N和总生存数 (TVC) 之间存在一致的相关性.
结论:
- 该Jug@AG水凝功能作为一个敏感的视觉色度传感器的TVB-N.
- 该传感器证明了实时监测食品新鲜度的实际应用.
- 这项技术通过提供动态破坏洞察力来提高食品安全.
更多相关视频
05:27Gap Junctional Intercellular Communication: A Functional Biomarker to Assess Adverse Effects of Toxicants and Toxins, and Health Benefits of Natural Products
Published on: December 25, 2016
15.2K
09:35Enrichment of Detergent-insoluble Protein Aggregates from Human Postmortem Brain
Published on: October 24, 2017
12.3K
相关概念视频
02:35DNA Agarose Gel Electrophoresis
99.3K
Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
99.3K
01:24Simple Staining Technique
875
OverviewStaining techniques in microscopy enhance the visualization of microorganisms by increasing contrast and allowing the differentiation of cellular structures. Simple staining is one of the fundamental methods used to observe the basic morphological characteristics of microorganisms, including their size, shape, and arrangement. This method relies on the application of a single dye to stain the entire cell, producing a clear contrast between the cell and the background.FixationFixation is...
875
01:26Differential Staining Technique
630
Differential staining is an essential microbiological technique that exploits variations in cell wall structures to classify and identify microorganisms. It facilitates the distinction of bacteria, aiding in diagnostic and research applications. Two of the most widely used differential staining methods are Gram staining and acid-fast staining, both of which rely on the chemical and structural differences in bacterial cell walls.Gram Staining TechniqueGram staining differentiates bacteria by...
630
03:31Labeling DNA Probes
8.4K
DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
8.4K