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.的植物化学分析、抗氧化、酶抑制及抗菌活性

Phytochemical profiling, antioxidant, enzymatic inhibitory, and antibacterial activities of .

作者信息

Viteri Rafael, Espinoza Fernando, Cornejo Xavier, Simirgiotis Mario J, Manzano Patricia

机构信息

Centro de Investigaciones Biotecnológicas del Ecuador, ESPOL, Polytechnic University, ESPOL, Guayaquil, Ecuador.

Herbario GUAY, Departamento de Botánica, Facultad de Ciencias Naturales, Universidad de Guayaquil, Guayaquil, Ecuador.

出版信息

Front Plant Sci. 2024 Nov 7;15:1481447. doi: 10.3389/fpls.2024.1481447. eCollection 2024.

Abstract

, a member of the Namaceae family, is a source of metabolites and has been traditionally used as an anti-inflammatory. This work aimed to determine the total phenolic content (TPC), total flavonoid content (TFC), antioxidant effect, inhibition of α-glucosidase and cholinesterase enzymes (AChE, BChE), and antibacterial activity of the methanolic extract (ME) and subfractions of . The findings revealed that ME and its subfractions exhibited significant antioxidant capacity, with the ethyl acetate fraction being the most active, displaying an IC of 17.66 µg/mL against the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and 10.31 µg/mL against 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS). This activity was attributed to its high total phenolic content (357.47 mg GAE/g). Furthermore, fractions showed marked antimicrobial properties against human pathogen strains with Minimum Bactericidal Concentration (MBC) values ​​of 1.56-6.25 mg/mL for , and . Furthermore, aqueous fraction exhibited slight inhibition of acetylcholinesterase (IC: 915.98 µg/mL) and butyrylcholinesterase (IC: 380.42 µg/mL). Interestingly, EF showed the greatest inhibitory effect of α-glucosidase (IC: 38.44 µg/mL) which is more potent than the control used, acarbose (IC: 179.07 µg/mL). UHPLC-QTOF-MS analysis identified forty compounds, including phenolic acids, flavonoids, saponins, terpenes, and fatty acyls. As far as we know, this is the first study to evaluate the chemical composition and biological potential of . Our results provide the first evidence to the chemical knowledge of the species and demonstrate its bioactive potential as an interesting source of secondary metabolites with possible beneficial properties for health.

摘要

[某植物名称]是纳马科的一员,是代谢物的来源,传统上用作抗炎药。这项工作旨在测定[某植物名称]甲醇提取物(ME)及其亚组分的总酚含量(TPC)、总黄酮含量(TFC)、抗氧化作用、对α-葡萄糖苷酶和胆碱酯酶(乙酰胆碱酯酶、丁酰胆碱酯酶)的抑制作用以及抗菌活性。研究结果表明,ME及其亚组分表现出显著的抗氧化能力,其中乙酸乙酯组分活性最强,对1,1-二苯基-2-苦基肼基(DPPH)自由基的IC50为17.66μg/mL,对2,2'-偶氮双-(3-乙基苯并噻唑啉-6-磺酸)二铵盐(ABTS)的IC50为10.31μg/mL。这种活性归因于其高总酚含量(357.47mg没食子酸当量/g)。此外,各组分对人类病原体菌株显示出显著的抗菌特性,[具体细菌名称1]、[具体细菌名称2]和[具体细菌名称3]的最低杀菌浓度(MBC)值为1.56 - 6.25mg/mL。此外,水相组分对乙酰胆碱酯酶(IC50:915.98μg/mL)和丁酰胆碱酯酶(IC50:380.42μg/mL)表现出轻微抑制作用。有趣的是,乙酸乙酯组分对α-葡萄糖苷酶显示出最大抑制作用(IC50:38.44μg/mL),比所用对照阿卡波糖(IC50:179.07μg/mL)更有效。超高效液相色谱-四极杆飞行时间质谱(UHPLC-QTOF-MS)分析鉴定出40种化合物,包括酚酸、黄酮类、皂苷、萜类和脂肪酰基。据我们所知,这是第一项评估[某植物名称]化学成分和生物潜力的研究。我们的结果为该物种的化学知识提供了首个证据,并证明了其作为次生代谢物有趣来源的生物活性潜力,可能具有对健康有益的特性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2ec/11578724/536f33f72038/fpls-15-1481447-g001.jpg

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