Gilthead seabream is bred mainly in fish farms in the Mediterranean Sea. One important factor responsible for the deterioration of fish quality is lipid oxidation. Moringa oleifera leaves have been described as having high antioxidant content. This work investigates the effect of dietary supplementation with Moringa leaves on the antioxidant activity of seabream. Gilthead seabream specimens were divided into four groups, the control group (fed a commercial diet) and three other groups fed diets enriched with Moringa (5%, 10% and 15%). The antioxidant capacity was measured by assays of free radical scavenging (OH·, H₂O₂, lipoperoxyl and ABTS), Rancimat test and linoleic acid system in muscle and skin of gilthead seabream, commercial diet, enriched diet and Moringa. Finally, the polyphenol content of Moringa and the fatty acid composition of seabream fed diets with and without Moringa were determined. Results showed an increase in antioxidant activity in gilthead seabream fed with diets enriched with a higher percentage of Moringa; therefore, Moringa could be considered a functional ingredient in diets for fish bred in fish farms and. The antioxidant potential of Moringa leaves could be mainly attributed to the presence of polyphenolic compounds.

中文翻译：

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用添加辣木的饮食喂养的金头鲷 (Sparus aurata L.) 的抗氧化活性

金头鲷主要在地中海的养鱼场养殖。导致鱼品质恶化的一个重要因素是脂质氧化。辣木叶已被描述为具有高抗氧化剂含量。这项工作研究了膳食补充剂辣木叶对鲷鱼抗氧化活性的影响。Gilthead 鲷鱼标本分为四组，对照组（饲喂商业饮食）和其他三组饲喂富含辣木的饮食（5%、10% 和 15%）。抗氧化能力通过自由基清除（OH·，H ₂ O ₂、脂过氧化物和 ABTS)、金头鲷肌肉和皮肤中的 Rancimat 测试和亚油酸系统、商业饮食、强化饮食和辣木。最后，确定了辣木的多酚含量和含有和不含辣木的鲷鱼饲料的脂肪酸组成。结果表明，饲喂含有较高比例辣木的日粮的金头鲷的抗氧化活性增加；因此，辣木可以被认为是养鱼场养殖的鱼类饲料中的一种功能性成分。辣木叶的抗氧化潜力主要归因于多酚化合物的存在。