Universidade Federal de Viçosa, Department of Food Technology, Avenida Peter Henry Rolfs, s/n, Viçosa, MG 36570-000, Brazil.
Universidad de Castilla-La Mancha, Instituto Regional de Investigación Científica Aplicada, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain.
Food Chem. 2018 Jun 30;252:61-71. doi: 10.1016/j.foodchem.2018.01.078. Epub 2018 Jan 12.
Extracts of jabuticaba peels show complex chromatographic profiles at 360 nm, with some peaks presenting UV-Vis spectra resembling those of flavonol glycosides and others resembling that of ellagic acid. The presence and tentative identification of these phenolic compounds were comprehensively studied in four species of Brazilian jabuticaba fruit - Plinia trunciflora, variety 'jabuticaba de cabinho'; P. caulifora, varieties 'jabuticaba paulista' and 'jabuticaba canaã-açu'; P. jaboticaba, variety 'jabuticaba sabará'; and P. phitrantha, variety 'jabuticaba branca-vinho' - using HPLC-DAD-ESI-MS. Seventeen flavonols derived from quercetin and three from myricetin and eighteen derivatives of ellagic acid and eleven of methyl ellagic acid were detected. Most of them were newly described and mainly occurred in glycosylated and acylglycosylated forms. Some compounds were missing in one variety, such as the absence of methyl ellagic acid derivatives in 'jabuticaba branca-vinho', and others only appeared in one variety, thus suggesting potential capacity for varietal differentiation.
芭西果果皮提取物在 360nm 处显示出复杂的色谱图谱，其中一些峰的紫外可见光谱类似于黄酮醇糖苷，而另一些则类似于鞣花酸。本研究全面研究了巴西芭西果的四个种中的这些酚类化合物的存在和初步鉴定 - Plinia trunciflora，品种 'jabuticaba de cabinho'；P. caulifora，品种 'jabuticaba paulista' 和 'jabuticaba canaã-açu'；P. jaboticaba，品种 'jabuticaba sabará'；以及 P. phitrantha，品种 'jabuticaba branca-vinho' - 使用 HPLC-DAD-ESI-MS。检测到 17 种来自槲皮素和 3 种来自杨梅素的黄酮醇以及 18 种鞣花酸衍生物和 11 种甲基鞣花酸衍生物。其中大多数是新描述的，主要以糖苷和酰基糖苷形式存在。一些化合物在一个品种中缺失，例如 'jabuticaba branca-vinho' 中缺少甲基鞣花酸衍生物，而另一些化合物仅在一个品种中出现，因此表明可能具有品种分化的潜力。
