Batool Zahra, Sameen Dur E, Wen Ding, Hu Shanshan, Roobab Ume, Li Bing, Adil Rana Muhammad, Shen Bairong
Center of High Altitude Medicine West China Hospital, Sichuan University Chengdu China.
College of Food Science Sichuan Agricultural University Yaan China.
Food Sci Nutr. 2024 Nov 18;12(12):10576-10591. doi: 10.1002/fsn3.4590. eCollection 2024 Dec.
Solid Phase Microextraction-Gas Chromatography Triple Quadrupole Mass Spectrometry (SPME-GC-TQ/MS) was optimized and validated to specifically analyze aldehydes and furans after drying by conventional as well as modern pre-drying technique i.e. pulsed electric field (PEF). Analytical method was validated in terms of linearity ( ), recovery (%), relative standard deviation (% RSD), limit of detection (LOD) and limit of quantification (LOQ). Sample pre-treatment with PEF (1 kV/cm) followed by drying at 65°C produced dried product with fewer chemical changes in the composition than convective hot air drying. Meanwhile, nutritional parameters including polyphenolics, amino acids, fatty acids and sugars profiles were also extensively investigated to get deeper insights into the effect of drying treatments on the nutritional quality of dried product. Conclusively, sample pre-treatment on relatively lower PEF voltage, followed by drying at minimum temperature with longer time duration can preserve nutritional quality of product by forming less harmful compounds.
固相微萃取-气相色谱三重四极杆质谱联用技术(SPME-GC-TQ/MS)经过优化和验证,用于在采用传统以及现代预干燥技术(即脉冲电场,PEF)干燥后,专门分析醛类和呋喃类物质。该分析方法在线性度、回收率、相对标准偏差(%RSD)、检测限(LOD)和定量限(LOQ)方面得到了验证。采用PEF(1 kV/cm)进行样品预处理,然后在65°C下干燥,与对流热风干燥相比,所得干燥产品的成分化学变化更少。同时,还对包括多酚类、氨基酸、脂肪酸和糖类概况在内的营养参数进行了广泛研究,以更深入地了解干燥处理对干燥产品营养品质的影响。总之,在相对较低的PEF电压下进行样品预处理,然后在最低温度下长时间干燥,可以通过形成较少的有害化合物来保持产品的营养品质。