当前位置: X-MOL 学术Microchem. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
An improved and miniaturized analytical strategy based on μ-QuEChERS for isolation of polyphenols. A powerful approach for quality control of baby foods
Microchemical Journal ( IF 4.8 ) Pub Date : 2018-06-01 , DOI: 10.1016/j.microc.2018.02.026
Natalia Casado , Rosa Perestrelo , Catarina L. Silva , Isabel Sierra , José S. Câmara

Abstract An improved and miniaturized quick, easy, cheap, effective, rugged and safe (μ-QuEChERS) strategy combined with ultra-high pressure liquid chromatography coupled to a photodiode array detection system (UHPLC-PDA) was developed and optimized for the determination of twelve polyphenols in different baby foods samples. The proposed analytical approach proved to be highly cost-effective and environmentally friendly, since it showed good extraction efficiency using few amounts of sample (0.3 g), organic solvents (1000 μL), clean-up sorbents (87.5 mg) and partitioning salts (0.2 g), producing minimal waste disposal and reducing analysis time. Method performance was validated in terms of selectivity, linearity, limits of detection and quantification, matrix effects, precision and accuracy using different baby food matrices according to their composition. The overall average recoveries ranged from 71 to 100% with relative standard deviations lower than 6% (n = 18). The method was successfully applied to commercial baby food samples (including pureed solids, juices and porridges), and their total phenolic content (TPC) and antioxidant capacity (RSA) were also investigated. Results allowed characterizing the abundance of the selected polyphenols in the samples, and the highest RSA and TPC were found in the fruit-based baby foods. Thus, this work represents a first approach to determine the nutritional quality of these products.

中文翻译:

一种基于 μ-QuEChERS 的改进的小型化多酚分离分析策略。一种强大的婴儿食品质量控制方法

摘要 开发并优化了一种改进和小型化的快速、简单、廉价、有效、耐用和安全 (μ-QuEChERS) 策略,结合超高压液相色谱与光电二极管阵列检测系统 (UHPLC-PDA) 相结合,用于测定不同婴儿食品样品中的十二种多酚。所提出的分析方法被证明具有很高的成本效益和环境友好性,因为它使用少量样品 (0.3 g)、有机溶剂 (1000 μL)、净化吸附剂 (87.5 mg) 和分配盐显示出良好的提取效率( 0.2 g),产生最少的废物处理并减少分析时间。在选择性、线性、检测限和定量限、基质效应、根据其成分使用不同的婴儿食品基质的精密度和准确度。总体平均回收率为 71% 到 100%,相对标准偏差低于 6% (n = 18)。该方法已成功应用于商业婴儿食品样品(包括泥状固体、果汁和粥),并对其总酚含量 (TPC) 和抗氧化能力 (RSA) 进行了研究。结果可以表征样品中所选多酚的丰度,并且在基于水果的婴儿食品中发现了最高的 RSA 和 TPC。因此,这项工作代表了确定这些产品营养质量的第一种方法。该方法已成功应用于商业婴儿食品样品(包括泥状固体、果汁和粥),并对其总酚含量 (TPC) 和抗氧化能力 (RSA) 进行了研究。结果可以表征样品中所选多酚的丰度,并且在基于水果的婴儿食品中发现了最高的 RSA 和 TPC。因此,这项工作代表了确定这些产品营养质量的第一种方法。该方法已成功应用于商业婴儿食品样品(包括泥状固体、果汁和粥),并对其总酚含量 (TPC) 和抗氧化能力 (RSA) 进行了研究。结果可以表征样品中所选多酚的丰度,并且在以水果为基础的婴儿食品中发现了最高的 RSA 和 TPC。因此,这项工作代表了确定这些产品营养质量的第一种方法。
更新日期:2018-06-01
down
wechat
bug