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通过 UPLC-LTQ-Orbitrap-MS 鉴定算盘子茎中的植物化学物质和抗氧化活性。

Identification of phytochemicals and antioxidant activity of Premna microphylla Turcz. stem through UPLC-LTQ-Orbitrap-MS.

机构信息

Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biological and Food Engineering, Suzhou University, Suzhou 234000, PR China.

Suzhou Engineering and Technological Research Center of Natural Medicine and Functional Food, School of Biological and Food Engineering, Suzhou University, Suzhou 234000, PR China; School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu 241000, PR China.

出版信息

Food Chem. 2022 Mar 30;373(Pt B):131482. doi: 10.1016/j.foodchem.2021.131482. Epub 2021 Oct 27.

DOI:10.1016/j.foodchem.2021.131482
PMID:34731817
Abstract

Premna microphylla Turcz. is a commonly used traditional Chinese medicine totreatdysentery and appendicitis. Present study is focused to explore antioxidants and other compounds in the Premna microphylla Turcz. stem. Assessment of chemical composition was done with high sensitivity UPLC-LTQ-Orbitrap-MS and for Separation Thermo Hypersil Gold (100 mm × 2.1 mm, 1.9 µm) was used while electrospray ionization (ESI) was used for the mass spectrometry. 18 compounds were identified including Vitexin (1), Schaftoside (2), Vicenin-2 (3), Apigenin-6, 8-di-C-arabinoside (4), Apigenin-7-O-β-d-glucoside (5), Carnosic acid (6), Apigenin-8-C-β-d-xylopyranoside (7), Prostratin (8), Aurantio-obtusin-β-d-glucoside (9), Royleanone (10), 5-hydroxy-7,3',4'-Trimethoxy flavonols (11), 6-Hydroxy-5,6-dehydrosugiol (12), 14-deoxycoleon (13), Arucadiol (14), Obtusinone-B (15), Trehalose (16), Citric acid (17) and Betaine (18). Among these, 6 compounds including (6), (8), (9), (16), (17) and (18) were identified first time within this genus and plant. Study highlights the importance of Premna microphylla Turcz. stem extract for strong therapeutic potential against oxidation-related diseases.

摘要

水麻是一种常用的传统中药，用于治疗痢疾和阑尾炎。本研究旨在探索水麻茎中的抗氧化剂和其他化合物。采用超高灵敏度 UPLC-LTQ-Orbitrap-MS 进行化学成分评估，分离采用 Thermo Hypersil Gold（100mm×2.1mm，1.9μm），电喷雾电离（ESI）用于质谱。鉴定出 18 种化合物，包括牡荆素（1）、穗花杉双黄酮（2）、vicenin-2（3）、芹菜素-6,8-二-C-阿拉伯糖苷（4）、芹菜素-7-O-β-d-葡萄糖苷（5）、迷迭香酸（6）、芹菜素-8-C-β-d-木吡喃糖苷（7）、普罗他汀（8）、橙皮苷-β-d-葡萄糖苷（9）、罗利酮（10）、5-羟基-7,3',4'-三甲氧基黄酮醇（11）、6-羟基-5,6-脱水鼠李素（12）、14-脱氧coleon（13）、阿鲁卡二醇（14）、 obtusinone-B（15）、海藻糖（16）、柠檬酸（17）和甜菜碱（18）。其中，（6）、（8）、（9）、（16）、（17）和（18）这 6 种化合物是首次在该属和植物中被鉴定出来。该研究强调了水麻茎提取物在对抗氧化相关疾病方面的重要性。