FFoQSI Austrian Competence Center for Feed and Food Quality, Safety and Innovation, Stelzhamerstrasse 23, 4600 Wels, Austria; University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, 4600 Wels, Austria.
FFoQSI Austrian Competence Center for Feed and Food Quality, Safety and Innovation, Stelzhamerstrasse 23, 4600 Wels, Austria; University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, 4600 Wels, Austria.
Food Chem. 2021 Feb 15;338:128065. doi: 10.1016/j.foodchem.2020.128065. Epub 2020 Sep 21.
This study was conducted to examine putative correlations between weather parameters during April-September and the amounts of nutrients, minerals and bioactive compounds in the juices of 16 apple varieties from four harvest years in Lower Austria. For most sugar-parameters, negative correlations were found with the total precipitation (r between -0.42 and -0.64). Conversely, positive correlations were observed with the mean air temperature (r between 0.32 and 0.66), the global radiation (r between 0.32 and 0.61) and the number of tropical days (r between 0.39 and 0.51). The sum of 14 polyphenols (HPLC quantitation) was positively correlated with the mean air temperature and global radiation (r 0.44 and 0.42). Negative correlations were observed between the global radiation and potassium, magnesium and calcium contents (correlation coefficients -0.49, -0.68 and -0.69). We conclude that increased temperatures and global radiation can be correlated with enhanced sugar synthesis and polyphenol formation.
本研究旨在探讨 4 个不同收获年份下，16 种苹果品种在 4 月至 9 月期间的气象参数与果汁中营养物质、矿物质和生物活性化合物含量之间的相关性。对于大多数糖参数，与总降水量呈负相关（r 值在-0.42 到-0.64 之间）。相反，与平均空气温度（r 值在 0.32 到 0.66 之间）、总辐射（r 值在 0.32 到 0.61 之间）和热带日数（r 值在 0.39 到 0.51 之间）呈正相关。14 种多酚（HPLC 定量）的总和与平均空气温度和总辐射呈正相关（r 值为 0.44 和 0.42）。总辐射与钾、镁和钙含量呈负相关（相关系数分别为-0.49、-0.68 和-0.69）。我们得出结论，温度和总辐射的升高与糖合成和多酚形成的增强有关。
