Odeleye Tinu, Li Yan, White William Lindsey, Nie Shaoping, Chen Shuping, Wang Junqiao, Lu Jun
School of Applied Sciences and Institute for Applied Ecology New Zealand, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 1010, New Zealand.
School of Applied Sciences and Institute for Applied Ecology New Zealand, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 1010, New Zealand; School of Interprofessional Health Studies, Auckland University of Technology, Auckland 0627, New Zealand.
Food Chem. 2016 Aug 1;204:141-149. doi: 10.1016/j.foodchem.2016.02.120. Epub 2016 Feb 18.
The antioxidant action of three New Zealand surf clams was evaluated for the first time. Aqueous (cd) and ethanolic extracts from Diamond shell - Crassula aequilatera, Storm shell - Mactra murchisoni, and Tua tua - Paphies donacina were studied for their antioxidant potentials using two in vitro assays. The ethanolic extracts were further fractioned into four parts; petroleum ether (pe), ethyl acetate (ea), n-butanol (nb), and the final aqueous fraction (w). Comparing among all fractions tested, the ea fraction of P. donacina showed the strongest free radical scavenging power, with a radical scavenging activity of 76.14% at 20μg/mL. The ea fraction of C. aequilatera had the highest copper reducing activity with an absorbance of 1.596 at 20μg/mL. Results from this study suggest that some bioactive compounds with significant antioxidant effects may exist in the New Zealand surf clams, and could potentially reduce oxidative stress to deliver health benefits or to produce functional foods.
首次评估了三种新西兰冲浪蛤的抗氧化作用。使用两种体外试验方法，研究了来自钻石壳蛤——等边厚蟹守螺、风暴壳蛤——默氏锉蛤和图阿图阿蛤——多纳辛帕菲蛤的水提取物（cd）和乙醇提取物的抗氧化潜力。乙醇提取物进一步分为四个部分：石油醚（pe）、乙酸乙酯（ea）、正丁醇（nb）和最后的水相部分（w）。在所有测试部分中进行比较，多纳辛帕菲蛤的ea部分表现出最强的自由基清除能力，在20μg/mL时自由基清除活性为76.14%。等边厚蟹守螺的ea部分具有最高的铜还原活性，在20μg/mL时吸光度为1.596。这项研究的结果表明，新西兰冲浪蛤中可能存在一些具有显著抗氧化作用的生物活性化合物，并且有可能降低氧化应激以带来健康益处或生产功能性食品。
