Evaluation of antioxidant activity and total phenol content of Gracilaria bursa-pastoris harvested in Nador lagoon for an enhanced economic valorization
Evaluation of antioxidant activity and total phenol content of Gracilaria bursa-pastoris harvested in Nador lagoon for an enhanced economic valorization
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评估纳祖尔泻湖收获的江蓠的抗氧化活性和总酚含量，以提高经济价值
DOI：
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发表时间：
2017
影响因子：
6.6
通讯作者：
Mohammed Ramdani
中科院分区：
文献类型：
--
作者：
Mohamed Ramdani;O. Elasri;N. Saidi;N. Elkhiati;F. Taybi;M. Mostareh;O. Zaraali;B. Haloui;Mohammed Ramdani
囊状江蓠是一种丰富的藻类，是造成摩洛哥纳多尔泻湖富营养化的主要原因。因此，泻湖是一个生物资源的存款，其经济价值可以提高。海藻提取物的抗氧化特性已在几个地理区域进行了研究，但只有少数研究已在热带海藻物种，并没有研究已经做了，以确定抗氧化活性和本地藻类在摩洛哥的纳多尔泻湖。以2，2-二苯基-1-苦肼基（DPPH）自由基清除率和总酚、总黄酮和总黄酮醇含量为指标，评价了江蓠的甲醇提取物和水提取物的抗氧化能力。这项研究表明，这种大型藻类的乙醇提取物和水提取物分别含有较高的总酚含量（142.26和79.43 mg GAE g-1提取物）。所有提取物均表现出DPPH自由基清除活性，甲醇提取物表现出很大的抗氧化潜力，具有非常低的EC 50值（0.085 mg/mL），与商业抗氧化剂抗坏血酸的EC 50（0.028 mg/mL）相当。这些结果表明，大型藻类具有很大的抗氧化潜力，可以考虑在摩洛哥的医药，食品生产或化妆品行业的未来应用。结果表明，该提取物中含有丰富的酚类化合物。该提取物表现出最高的抗氧化活性，这可能是由于存在大量的酚类化合物。江蓠可作为天然抗氧化剂的来源。
The Gracilaria bursa-pastoris is an abundant alga that is responsible for the eutrophication in Nador lagoon in Morocco. Therefore, the lagoon is a deposit of bioresources whose economic value can be enhanced. Antioxidative properties of seaweed extracts have been studied in several geographic regions, but only a few studies have been performed on tropical seaweed species, and no research has been done to determine antioxidant activity and valorization of the indigenous algae in Nador lagoon in Morocco. The present study evaluated the antioxidant potential of methanolic and aqueous extracts from Gracilaria bursa-pastoris by measuring the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and total content of phenolic, flavonoids and flavonols content in each extract. This study showed that this macroalgae contained a high total phenolic content (142.26 and 79.43 mg GAE g−1 extract) for ethanolic and aqueous extracts, respectively. All extracts exhibited a DPPH radical scavenging activity, and the methanolic extracts demonstrated a great antioxidant potential with very low value of EC50 (0.085 mg/mL), significantly equivalent to EC50 (0,028 mg/mL) of commercial antioxidant ascorbic acid. These results suggest that the macroalgae have a great antioxidant potential which could be considered for future applications in medicine, food production or cosmetic industry in Morocco. This work showed that the ethanolic extract was rich in phenolic compounds. This extract exhibited the highest antioxidant activity which may be explained by the presence of a large quantity of phenolic compounds. The Gracilaria bursa-pastoris can be utilized as a source of natural antioxidant compounds.
影响因子：
5.1
作者：
Takamatsu, S;Hodges, TW;Nagle, DG
通讯作者：
Nagle, DG