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L. 部分的植物化学、抗菌和抗氧化特性

Phytochemical, Antimicrobial, and Antioxidant Profiles of L. Parts.

作者信息

Donkor Shadrack, Larbie Christopher, Komlaga Gustav, Emikpe Benjamin Obukowho

机构信息

Applied Radiation Biology Centre, Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Legon, Accra, Ghana.

Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.

出版信息

Biochem Res Int. 2019 Oct 24;2019:8731595. doi: 10.1155/2019/8731595. eCollection 2019.

Abstract

The use of plant-based medicine is popular amongst individuals and communities in developing countries. has been used in Africa and Asia to treat a wide range of diseases. This study evaluated the phytochemical profile and antioxidant and antimicrobial activities of to ascertain its health benefits in traditional medicine. Phytochemical constituents and antimicrobial effect of the hydroethanolic extract of leaves (DRL), unripe fruits (DRU), and ripe fruits (DRR) were investigated by standard methods. Elemental analyses were carried out by atomic absorption spectroscopy (AAS) on the raw sample and extract. FTIR and UV-VIS spectroscopy were used to identify functional groups. Extracts were screened for their possible antioxidant activities by three tests. The total phenolic and total tannin contents were evaluated by using the Folin-Ciocalteu method. Total flavonoid content was determined by the aluminium chloride colorimetric assay method. The antioxidant activities were evaluated using the DPPH scavenging activity. The results of phytochemical screening showed the presence of triterpenoids, sterols, alkaloids, flavonoids, saponins, glycosides, and tannins. FTIR analysis revealed the presence of alcohols, phenols, alkanes, aldehydes, ketones, aromatics, aliphatic amines, aromatic amines, amides, carboxylic acids, esters, nitro compounds, alkynes, primary and secondary amines, and alkyl halides. Iron, zinc, and copper were also detected. Total phenolic and tannin contents ranged from 2.20 ± 0.15 to 14.54 ± 0.29 mg gallic acid equivalent (GAE)/100 g and 3.55 ± 0.07 to 13.82 ± 0.04 mg GAE/100 g, respectively. Total flavonoid content varied from 41.76 ± 0.96 to 343.49 ± 3.45 g quercetin equivalent (QE)/100 g. The highest DPPH scavenging activity was recorded in the methanolic fraction of the leaves. The antimicrobial assay of the extract or fractions recorded no activity against the test organisms. The outcome of this study affirmed that contains phytochemicals and bioactive compounds that could be of health benefit.

摘要

植物性药物在发展中国家的个人和社区中很受欢迎。它已在非洲和亚洲被用于治疗多种疾病。本研究评估了[植物名称]的植物化学特征、抗氧化和抗菌活性,以确定其在传统医学中的健康益处。采用标准方法研究了[植物名称]叶(DRL)、未成熟果实(DRU)和成熟果实(DRR)的乙醇提取物的植物化学成分和抗菌效果。通过原子吸收光谱法(AAS)对原始样品和提取物进行元素分析。利用傅里叶变换红外光谱(FTIR)和紫外可见光谱(UV-VIS)来鉴定官能团。通过三项测试筛选提取物的潜在抗氧化活性。采用福林-酚试剂法评估总酚和总单宁含量。采用氯化铝比色法测定总黄酮含量。利用1,1-二苯基-2-三硝基苯肼(DPPH)清除活性评估抗氧化活性。植物化学筛选结果表明存在三萜类、甾醇、生物碱、黄酮类、皂苷、糖苷和单宁。FTIR分析显示存在醇类、酚类、烷烃、醛类、酮类、芳烃、脂肪胺、芳香胺、酰胺、羧酸、酯类、硝基化合物、炔烃、伯胺和仲胺以及卤代烃。还检测到了铁、锌和铜。总酚和单宁含量分别为2.20±0.15至14.54±0.29毫克没食子酸当量(GAE)/100克和3.55±0.07至13.82±0.04毫克GAE/100克。总黄酮含量在41.76±0.96至343.49±3.45克槲皮素当量(QE)/100克之间变化。叶的甲醇提取物中记录到最高的DPPH清除活性。提取物或馏分的抗菌试验对受试微生物无活性。本研究结果证实[植物名称]含有可能对健康有益的植物化学物质和生物活性化合物。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae93/6855089/445821c9a8e9/BRI2019-8731595.001.jpg

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