Experimental and Technological Services Department, Technology Transfer Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38010 San Michele all'Adige, Italy.
Department of Pharmaceutical Sciences, Food Science and Nutrition Section, University of Perugia, Via S. Costanzo 1, 06126 Perugia, Italy.
Food Chem. 2019 Mar 1;275:585-593. doi: 10.1016/j.foodchem.2018.09.098. Epub 2018 Sep 17.
This work characterises and distinguishes Italian and Asian goji berries, combining three analytical approaches to determine 5 light stable isotope ratios, 57 mineral elements and 14 carotenoids. The study analyses stable isotope ratios and provides full HPLC-DAD-MS characterisation of the carotenoid fraction in goji berries for the first time. The isotopic composition of Italian berries was characterised by δC values ranging between -28.2‰ and -25.7‰, δN between 2.3 and 7.3‰, δS between 2.6 and 7.9‰, and D/H between -112 and -49‰. Italian goji berries were shown to have a particular composition and interesting nutritional characteristics, specifically a higher total carotenoid content (355 mg/100 g dw mean content vs 198 mg/100 g dw) and higher content of some micronutrients: K, B, Cu, Mo, Se, and Zn. On the basis of δS, Y, U, Cu, Rb, zeaxanthin palmitate and total carotenoid content, discriminant analysis correctly classified all samples according to their geographical origin.
这项工作对意大利和亚洲枸杞进行了特征描述和区分，结合了三种分析方法来确定 5 种轻稳定同位素比值、57 种矿物质元素和 14 种类胡萝卜素。该研究分析了稳定同位素比值，并首次对枸杞中的类胡萝卜素部分进行了完整的 HPLC-DAD-MS 表征。意大利浆果的同位素组成特征为 δC 值在-28.2‰至-25.7‰之间，δN 值在 2.3 至 7.3‰之间，δS 值在 2.6 至 7.9‰之间，D/H 值在-112 至-49‰之间。意大利枸杞具有特殊的组成和有趣的营养特性，特别是总类胡萝卜素含量较高（355mg/100g dw 平均值与 198mg/100g dw），一些微量元素的含量也较高：K、B、Cu、Mo、Se 和 Zn。基于 δS、Y、U、Cu、Rb、叶黄素棕榈酸酯和总类胡萝卜素含量，判别分析根据地理来源正确分类了所有样品。
