Institute of Biology and Agricultural Biotechnology (IBBA), CNR, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy.
Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia.
Molecules. 2021 Sep 4;26(17):5380. doi: 10.3390/molecules26175380.
Aromatic halophytes represent an exceptional source of natural bioactive compounds for the food industry. L., also known as sea fennel, is a halophyte plant colonizing cliffs and coastal dunes along Mediterranean and Atlantic coasts. It is well known to produce essential oils and polyphenols endowed with antioxidant and biological effects. The present work reports the phytochemical profile, as well as antioxidant, antimicrobial and antimutagenic properties of leaf hydro-alcoholic extract. From LC-ESI-MS analysis, eighteen phenolic compounds were depicted in sea fennel extract and the amount of total phenolic content exceeds 3% DW. Accordingly, extract showed strong antioxidant activities, as evidenced by in vitro (DPPH, ORAC, FRAP) and ex vivo (CAA-RBC and hemolysis) assays. An important antimicrobial activity against pathogenic strains was found as well as a strong capacity to inhibit (ATCC 35556) biofilm formation. Sea fennel extracts showed a significant decrease of mutagenesis induced by hydrogen peroxide (HO) and menadione (ME) in D7 strain. In conclusion, our results show that is an exceptional source of bioactive components and exert beneficial effects against oxidative or mutagenic mechanisms, and pathogenic bacteria, making it a potential functional food.
芳香盐生植物是食品工业中天然生物活性化合物的重要来源。龙蒿(Artemisia dracunculus L.),又称海艾,是一种盐生植物,生长在沿地中海和大西洋海岸的悬崖和沿海沙丘上。它以产生具有抗氧化和生物活性的精油和多酚而闻名。本研究报告了叶水醇提取物的植物化学特征、抗氧化、抗菌和抗诱变特性。通过 LC-ESI-MS 分析,在海艾提取物中描绘了十八种酚类化合物,总酚含量超过 3%(DW)。因此,提取物表现出很强的抗氧化活性,体外(DPPH、ORAC、FRAP)和体内(CAA-RBC 和溶血)试验均证明了这一点。还发现了对致病菌的重要抗菌活性以及强烈抑制(ATCC 35556)生物膜形成的能力。海艾提取物可显著降低 D7 菌株中由过氧化氢(HO)和亚甲蓝(ME)诱导的突变。总之,我们的结果表明,龙蒿是生物活性成分的重要来源,对氧化或诱变机制以及致病菌具有有益作用,使其成为一种有潜力的功能性食品。