de Andrade Neves Nathália, César Stringheta Paulo, Ferreira da Silva Isadora, García-Romero Esteban, Gómez-Alonso Sergio, Hermosín-Gutiérrez Isidro
Universidade Federal de Viçosa, Department of Food Technology, Avenida Peter Henry Rolfs, s/n, Viçosa, MG 36570-000, Brazil.
Universidade Federal de Viçosa, Department of Food Technology, Avenida Peter Henry Rolfs, s/n, Viçosa, MG 36570-000, Brazil.
Food Chem. 2021 Sep 1;355:129605. doi: 10.1016/j.foodchem.2021.129605. Epub 2021 Mar 20.
The aim of this study was to investigate phenolic compounds in peel, pulp and seeds of five different jabuticabas - Plinia trunciflora, "cabinho", P. cauliflora, cultivars "paulista" and "canaã-açu", P. jaboticaba, "sabará" and P. phitrantha, "branca-vinho". In addition to the commonly reported cyanidin-3-glucoside and delphinidin3-glucoside, it was also found the unreported cyanidin-3-coumaroylglucoside in the peels. Flavonols derived from quercetin and myricetin were also detected in jaboticaba peels, along with a wide variety of derivatives of ellagic acid and methyl ellagic acid. The latter derivatives occurred in acylated forms, which were not usually found in jabuticabas. The pulps and seeds of jabuticabas contained large amounts of ellagitannins vescalagin and castalagin, as well as gallic and ellagic acids. The jabuticabas showed small amounts of catechin and gallocatechin. P. jaboticaba showed the highest levels of anthocyanins and flavonols derived from myricetin, and P. phitrantha presented the highest concentration of ellagitannins and flavan-3-ols.
本研究的目的是调查五种不同嘉宝果（Plinia trunciflora、“cabinho”、P. cauliflora、“paulista”和“canaã-açu”品种、P. jaboticaba、“sabará”以及P. phitrantha、“branca-vinho”）的果皮、果肉和种子中的酚类化合物。除了常见的矢车菊素-3-葡萄糖苷和飞燕草素-3-葡萄糖苷外，还在果皮中发现了未报道过的矢车菊素-3-香豆酰葡萄糖苷。在嘉宝果的果皮中还检测到了源自槲皮素和杨梅素的黄酮醇，以及多种鞣花酸和甲基鞣花酸衍生物。后一类衍生物以酰化形式存在，这在嘉宝果中通常未被发现。嘉宝果的果肉和种子含有大量的鞣花单宁vescalagin和castalagin，以及没食子酸和鞣花酸。嘉宝果中还含有少量的儿茶素和没食子儿茶素。P. jaboticaba的花青素和源自杨梅素的黄酮醇含量最高，而P. phitrantha的鞣花单宁和黄烷-3-醇浓度最高。
