Fuentes-Jorquera Natalia, Canales Roberto I, Pérez-Correa José R, Pérez-Jiménez Jara, Mariotti-Celis María Salomé
Chemical and Bioprocess Engineering Department, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, P.O. Box 306, Santiago 7820436, Chile.
Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, Spain.
Antioxidants (Basel). 2024 May 21;13(6):623. doi: 10.3390/antiox13060623.
, commonly known as white murta, is a native Chilean berry with a polyphenol composition that has been underexplored. This study aimed to establish a comprehensive profile of white murta polyphenols using ultra-performance liquid chromatography electrospray ionization Orbitrap mass spectrometry (UPLC-ESI-ORBITRAP MS). Additionally, it compared the efficacy of conventional extraction methods with emerging techniques such as deep eutectic solvent (DES) extraction and hot pressurized water extraction (HPWE). The analysis tentatively identified 107 phenolic compounds (84 of them reported for the first time for this cultivar), including 25 phenolic acids, 37 anthocyanins, and 45 flavonoids. Among the prominent and previously unreported polyphenols are ellagic acid acetyl-xyloside, 3-p-coumaroylquinic acid, cyanidin 3--(6'-caffeoyl-glucoside, and phloretin 2'--xylosyl-glucoside. The study found HPWE to be a promising alternative to traditional extraction of hydroxybenzoic acids, while DES extraction was less effective across all categories. The findings reveal that white murta possesses diverse phenolic compounds, potentially linked to various biological activities.
通常被称为白番樱桃，是一种原产于智利的浆果，其多酚成分尚未得到充分研究。本研究旨在使用超高效液相色谱电喷雾电离轨道阱质谱（UPLC-ESI-ORBITRAP MS）建立白番樱桃多酚的综合概况。此外，它还比较了传统提取方法与新兴技术如深共熔溶剂（DES）提取和热压水提取（HPWE）的效果。分析初步鉴定出107种酚类化合物（其中84种为本品种首次报道），包括25种酚酸、37种花青素和45种黄酮类化合物。其中突出且此前未报道的多酚有鞣花酸乙酰木糖苷、3-p-香豆酰奎尼酸、矢车菊素3--(6'-咖啡酰-葡萄糖苷)和根皮素2'--木糖基葡萄糖苷。研究发现热压水提取是传统提取羟基苯甲酸的一种有前景的替代方法，而深共熔溶剂提取在所有类别中效果较差。研究结果表明白番樱桃含有多种酚类化合物，可能与各种生物活性有关。
