Chaura (Gaultheria poeppigii) is a plant species native from Southern Chile, which produces a berry fruit with potential beneficial health effects due to its content of phenolic compounds. The qualitative and quantitative determination of the phenolic compounds from fruits of different colored genotypes (white-, pink- and red-colored) collected from the Osorno volcano and the Conguillío National Park (CNP) in southern Chile were analyzed by mass spectrometry (HPLC-DAD-ESI-MS/MS) and HPLC-DAD, respectively. The total content of phenolic compounds was evaluated by the Folin-Ciocalteu method, and its antioxidant activity by the CUPRAC, TEAC and DPPH methods. Four anthocyanins were detected, with glycosylated derivatives of delphinidin and cyanidin being the most abundant. Fruits with more coloration had higher anthocyanin concentrations. Six flavonols were detected, with quercetin derivatives being the most abundant. The highest concentration of total flavonols reached 0.41 mg g−1 in red colored fruits. The profiles of phenolic compounds showed differences between fruits depending on both the color and the area of collection. Finally, it would be interesting to evaluate the genetic profiles of chaura to determine whether this variation in phenolics and colorations is dependent on the geographical location or dependent on the genotype of the plant.

中文翻译：

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酚类化合物的分布和浓度对智利南部 Gaultheria poeppigii 果实着色和抗氧化特性的影响

Chaura (Gaultheria poepppigii) 是一种原产于智利南部的植物物种，由于其含有酚类化合物，其生产的浆果果实具有潜在的有益健康作用。通过质谱 (HPLC-) 分析从奥索尔诺火山和智利南部的孔吉里奥国家公园 (CNP) 收集的不同颜色基因型（白色、粉红色和红色）果实中酚类化合物的定性和定量测定。 DAD-ESI-MS/MS) 和 HPLC-DAD。酚类化合物总含量采用Folin-Ciocalteu法评价，抗氧化活性采用CUPRAC、TEAC和DPPH法评价。检测到四种花青素，其中飞燕草素和花青素的糖基化衍生物最为丰富。颜色越深的水果花青素浓度越高。检测到六种黄酮醇，其中槲皮素衍生物最为丰富。红色水果中总黄酮醇的最高浓度达到 0.41 mg g-1。酚类化合物的分布显示水果之间的差异取决于颜色和收集区域。最后，评估 chaura 的遗传谱以确定这种酚类物质和颜色的变化是取决于地理位置还是取决于植物的基因型，这将是很有趣的。