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标题：Chemical Composition and Antioxidant Capacity of the Fruits of European Plum Cultivar “Čačanska Lepotica” Influenced by Different Rootstocks
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作者：Antoaneta Trendafilova ; Viktoria Ivanova ; Boryana Trusheva 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2022
卷号：11
期号：18
DOI：10.3390/foods11182844
语种：English
出版社：MDPI Publishing
摘要：We investigated the influence of different rootstocks on the content of sugars, organic acids, and antioxidant phenolic compounds in the whole fruit and fruit skin of the European plum cultivar “Čačanska Lepotica”. 1H NMR of the fruit extracts allowed for the identification of sucrose, α- and β-glucose, sorbitol, fructose, and malic and quinic acids, while LC–DAD–ESIMS showed the presence of neochlorogenic and chlorogenic acids, cyanidin-3- O-glucoside, cyanidin-3- O-rutinoside, peonidin-3- O-glucoside, peonidin-3- O-rutinoside, hyperoside, isoquercitrin, rutin, and unidentified quercetin-3-diglycoside. The quantitation of the sugars, malic and quinic acids by 1H NMR and phenolic compounds by HPLC–DAD revealed that the rootstock significantly influenced the content of the individual compounds in the fruit skin and fruit. The fruit grafted on “Wavit” rootstock was characterized by significant amounts of neochlorogenic acid, peonidin-3- O-rutinoside, cyanidin-3- O-rutinoside, and sucrose, while the fruit on “GXN-15” was characterized by high levels of sugars, cyanidin-3- O-glucoside, and malic and chlorogenic acids. The fruit skins of plums grafted on “Wavit” were the richest in sugars, organic acids, and phenolic compounds. A good correlation was observed between the content of total phenolics (TPC), flavonoids (TFC), anthocyanins (TAC), and individual phenolic compounds in the extracts of the fruit and the fruit skins and their antioxidant capacity (DPPH, ABTS, and FRAP).
关键词：Prunus domesticaL.;rootstock;fruit;fruit skin;sugars;organic acids;phenolic compounds;antioxidant activity;1H NMR spectroscopy;LC–DAD–ESIMS;HPLC–DAD