Data on lipid hydroperoxide isomers and lipoxygenase specificity in potato fruit juice

This study aimed to quantify the levels and relative proportions of 9- and 13-hydroperoxyoctadecadienoic acid (HPODE) in the fruit juice of five industrial potato cultivars (Kuras, Saprodi, Cultivar X, Ydun, and Stratos), and to assess whether significant differences exist among them. The dataset consists of two sheets. The “Intensity” sheet contains the raw intensity data for 9-HPODE and 13-HPODE measured in three biological replicates for each cultivar. In addition, the total intensity has been calculated, and the mean and standard deviation (STD) of the three replicates are provided. The “Percentage” sheet presents the relative levels of 9- and 13-HPODE expressed as a percentage of the total intensity. The results indicate that the potato cultivars have similar total levels of lipid hydroperoxides but differ in the ratio of 9- to 13-HPODE. Overall, the 9-HPODE isomer predominates, suggesting a greater contribution of 9-lipoxygenase activity and oxidation at the C9 position. However, variations in the isomer ratio among cultivars point to differences in the relative activity of lipid oxidation pathways. Further details on data acquisition are provided in the “Steps to reproduce” section.本研究旨在量化5个工业马铃薯栽培品种（Kuras、Saprodi、品种X、Ydun、Stratos）果汁中9-氢过氧十八碳二烯酸与13-氢过氧十八碳二烯酸（hydroperoxyoctadecadienoic acid，简称HPODE）的含量及相对占比，并评估各品种间是否存在显著差异。本数据集包含两个工作表。其中"Intensity（强度）"工作表存储了各品种经3次生物学重复测定得到的9-HPODE与13-HPODE原始强度数据；此外，该工作表已计算得到总强度，并给出了3次重复的均值与标准差（standard deviation，简称STD）。"Percentage（占比）"工作表则呈现了以总强度为基准的9-HPODE与13-HPODE相对含量百分比。研究结果表明，供试马铃薯品种的脂质氢过氧化物总水平较为相近，但9-HPODE与13-HPODE的比值存在显著差异。总体而言，9-HPODE异构体占主导地位，提示C9位的9-脂氧合酶活性与氧化反应贡献度更高。不过，不同品种间的异构体比值存在变异，表明脂质氧化通路的相对活性存在差异。有关数据采集的详细信息，请参见"Steps to reproduce"章节。