SNaP-C:对饮料中维生素C含量的新型选择性银纳米颗粒抗氧化能力测定方法的验证
Ericka N Rivera Lemon1, Luis E Lowe1, Janel E Owens1
1Department of Chemistry and Biochemistry, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918, USA.
Food chemistry
|June 21, 2024
概括
一种新的银纳米粒子测定 (SNaP-C) 准确量化了饮料中的维生素C (甲酸). 这种方法显示了与HPLC可比的结果,与其他常见的测试不同,这些测试高估了维生素C含量.
科学领域:
- 分析化学 分析化学
- 食品科学 食品科学 食品科学
- 纳米技术 纳米技术
背景情况:
- 准确量化维生素C (酸) 对于食品和饮料分析至关重要.
- 现有的确定 Askorbic 酸和总 Askorbic 酸的方法可能在特异性或准确性上有局限性.
研究的目的:
- 验证一种新的银纳米粒子测定 (SNaP-C) 用于定量饮料中的甲酸 (AA) 和总甲酸 (TAA).
- 为了比较SNaP-C测试与高性能液体染色学 (HPLC) 和两个已建立的色度测试 (CUPRAC和Folin-Ciocalteu) 的性能.
主要方法:
- 对31种不同的饮料进行了SNaP-C测定.
- 从统计学上来说,SNaP-C的结果与HPLC-UV/Vis,CUPRAC和Folin-Ciocalteu试验的结果进行了比较.
- 所有方法都使用甲酸稳定AA进行校准,用于TAA测定使用了三2-碳氧乙烯) 酸.
主要成果:
- 在SNaP-C测试中,AA的检测极限 (LOD) 为2.2 mg/L.
- 在AA和TAA量化方面,SNaP-C和HPLC之间没有观察到统计学上显著的差异 (P > 0.05).
- 在CUPRAC和Folin-Ciocalteu评估中,分别高估了明显过高的AA和TAA含量.
结论:
- SNaP-C测定是一种新的,高度特定的方法,用于量化饮料中的维生素C.
- SNaP-C提供了准确和可靠的测量,无论是甲酸和总甲酸,与HPLC相比.
- 这种测试为现有方法提供了可行的替代方案,特别是当高估值是一个问题时.
关键词:
亚斯科布酸是一种亚斯科布酸.这就是CUPRAC测定.脱水阿斯科比克酸脱水阿斯科比克酸在Folin-Ciocalteu测定试验中.银纳米颗粒是什么意思 银纳米粒子是什么意思维生素C 维生素C是一种更多相关视频
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