Nutrient Composition, Antioxidant and Antibacterial Activities of Ulva prolifera O. F. Müller

Q3 Environmental Science
E. Arguelles, Arsenia B. Sapin
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引用次数: 4

Abstract

Seaweeds are marine organisms capable of producing diverse kinds of chemical compounds with promising pharmacological use. The study evaluated the proximate and elemental composition and the potential antioxidant (using CUPRAC, ABTS+, and DPPH assays) and antibacterial activities (using microtiter plate dilution assay) of Ulva prolifera O. F. Müller. The seaweed has a total phenolic content of 829 ± 2.00 mg GAE/g. Antioxidant efficiency of U. prolifera exerted high ability of reducing copper ions, potent ABTS+ and DPPH scavenging activities in a concentration-dependent manner with IC50 value of 24.7 mg GAE/mL, 43.52 mg GAE/mL, and 54.1 mg GAE/mL, respectively, more effective than ascorbic acid. In vitro antibacterial activity assay showed that U. prolifera exhibited inhibitory activity against bacterial pathogens such as Methicillin-resistant Staphylococcus aureus (MIC = 125 mg/mL), S. epidermidis (MIC = 125 mg/mL), and Pseudomonas fluorescens (MIC = 500 mg/mL). This investigation is the first documented report regarding antibacterial activity of U. prolifera against P. fluorescens. In addition, results showed elemental composition to be in decreasing order of Ca K Mg Na Mn Fe Zn Cu Pb Cd Cr. Proximate composition of U. prolifera showed high carbohydrate and protein content with a percentage composition of 36.20 ± 0.27% and 23.72 ± 0.31% (dry weight), respectively. This study is the first report in the Philippines that shows the potential of U. prolifera as an excellent candidate organism as source of chemical compounds with relevant application to the pharmacological industry.
增生Ulva Ulva prolifera o.f. melller的营养成分及其抗氧化和抗菌活性
海藻是一种能够产生多种化合物的海洋生物,具有良好的药理作用。该研究评估了Ulva prolifera O. F. m ller的近似值和元素组成以及潜在的抗氧化活性(使用CUPRAC, ABTS+和DPPH测定)和抗菌活性(使用微滴板稀释法)。总酚含量为829±2.00 mg GAE/g。其对铜离子的还原能力、ABTS+的清除能力和DPPH的清除能力均呈浓度依赖性,IC50值分别为24.7 mg GAE/mL、43.52 mg GAE/mL和54.1 mg GAE/mL,均优于抗坏血酸。体外抑菌活性试验表明,该菌对耐甲氧西林金黄色葡萄球菌(MIC = 125 mg/mL)、表皮葡萄球菌(MIC = 125 mg/mL)、荧光假单胞菌(MIC = 500 mg/mL)等病原菌均有抑制作用。本研究是首次文献报道关于增殖杆菌对荧光假单胞菌的抗菌活性。元素组成以Ca、K、Mg、Na、Mn、Fe、Zn、Cu、Pb、Cd、Cr依次递减,碳水化合物和蛋白质含量较高,占干重的比例分别为36.20±0.27%和23.72±0.31%。该研究是菲律宾第一个报告,显示了U. prolifera作为一种极好的候选生物作为化合物来源的潜力,并在药理学工业中有相关的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.40
自引率
0.00%
发文量
10
审稿时长
16 weeks
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