Marine microbiota is garnering increasing interest as a potential source of novel foods with enhanced nutritional and functional properties. In this study, the proximate composition and antioxidant capacity of five haloarchaea and microalgae species from the Andalusian Atlantic shoreline (, , , C5 and C13, and ) were compared to two freshwater species ( and ). All the species studied exhibited high protein content and antioxidant activity, with noticeable variations in total mineral content and fatty acid profile. Among the four extraction methodologies tested to prepare functional extracts, forced aqueous extraction followed by protein hydrolysis resulted in significantly greater yields and antioxidant activity, while microalgae demonstrated higher activity compared to haloarchaea tested in the present study. In conclusion, the diverse species examined displayed high nutritional and functional value, showing great potential to be part of the human diet as rich sources of readily available protein and antioxidant compounds.

中文翻译：

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安达卢西亚海岸线盐古菌和微藻的营养和功能评估：具有高营养价值的有前景的功能性食品


海洋微生物群作为具有增强营养和功能特性的新型食品的潜在来源，越来越受到人们的关注。在这项研究中，将来自安达卢西亚大西洋海岸线的五种盐古菌和微藻物种（、、、、C5 和 C13、和）的近似组成和抗氧化能力与两种淡水物种（和）进行了比较。所有研究的物种都表现出高蛋白质含量和抗氧化活性，但总矿物质含量和脂肪酸谱存在显着差异。在用于制备功能性提取物的四种提取方法中，强制水提取和蛋白质水解可显着提高产量和抗氧化活性，而与本研究中测试的盐古菌相比，微藻表现出更高的活性。总之，所检查的不同物种显示出很高的营养和功能价值，作为易于获得的蛋白质和抗氧化化合物的丰富来源，显示出成为人类饮食一部分的巨大潜力。