The aim of this study was to determine the composition and content of phenolic compounds in ethanol extracts of eight different cultivars of American cranberry (Vaccinium macrocarpon Aiton) fruit using spectrophotometric and UPLC-ESI-MS/MS analysis and to evaluate the antioxidant activity in vitro of these extracts. The highest total amount of phenolic compounds evaluated via Folin–Ciocalteu spectrophotometry was detected in American cranberry fruit samples of the ‘Bain’ clone, and the highest total amount of flavonoids was found in samples of the ‘Drever’ and ‘Baiwfay’ cultivars. The highest total amount of the individual phenolic compounds (519.53 ± 25.12 mg/g DW) identified and quantitatively evaluated via chromatography was detected in samples of the ‘Searles’ cranberry cultivar. In the studied cranberry samples, the predominant phenolic compounds were hyperoside, quercetin, and procyanidin A2, while the amounts of other compounds were significantly lower. HCA and PCA revealed that ‘Woolman’, ‘Holliston’, ‘Pilgrim, and ‘Searles’ fruit samples had different quantitative content of phenolic compounds from other cranberry cultivars. Meanwhile, fruit of ‘Baiwfay’, ‘Drever’, ‘Bain’, and ‘Bergman’ were similar in their phytochemical profile.

中文翻译：

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引入美洲蔓越莓（大果越橘）果实中酚类化合物的定性，定量组成和含量的变异性

这项研究的目的是测定八种美国蔓越莓（Vaccinium macrocarpon）乙醇提取物中的酚类化合物的组成和含量使用分光光度法和UPLC-ESI-MS / MS分析，并评估这些提取物在体外的抗氧化活性。通过Folin–Ciocalteu分光光度法评估的酚类化合物总量最高，在“ Bain”克隆的美国蔓越莓果实样品中含量最高，在“ Drever”和“ Baiwfay”品种样品中含量最高的类黄酮含量最高。在“ Searles”蔓越莓栽培品种的样品中，检测到并通过色谱法定量评估的单个酚类化合物的总量最高（519.53±25.12 mg / g DW）。在所研究的蔓越莓样品中，主要的酚类化合物为高丝苷，槲皮素和原花青素A2，而其他化合物的含量则明显较低。HCA和PCA透露，“ Woolman”，“ Holliston”，“ Pilgrim，和“ Searles”水果样品中酚类化合物的定量含量与其他蔓越莓品种不同。同时，“ Baiwfay”，“ Drever”，“ Bain”和“ Bergman”的果实在植物化学特征方面相似。