ABSTRACT

Microgreens are an emerging class of fresh food with a high potential for the natural health supplement and support system of space life. Although beet microgreens are praised for their unique color, flavor, and overall eating quality, the study of their physicochemical composition is limited. In this study, profile of total chlorophylls, carotenoids, betalains, ascorbic acid, polyphenols, and equivalent antioxidant capacities (EAC) (as ascorbic acid) of beet (Beta vulgaris) microgreens of day 9 to day 21 were assayed and their correlations were evaluated. All investigated parameters were minimum on day 9 and significantly (p < 0.05) increased to the maximum on day 15. No significant (p > 0.05) reduction occurred in chlorophylls and carotenoids content after day 15, but all other parameters were significantly (p < 0.05) reduced. About 120 g of fresh microgreen could solely fulfill the recommended daily intake of ascorbic acid. Chlorophylls, carotenoids, and polyphenols content were lower as compared to other microgreens. Despite this, beet microgreens possessed high EACs as ascorbic acid due to high betalains content. Very high correlations (>0.76) were observed among all investigated parameters. This study demonstrates beet microgreens as a powerful natural antioxidant. Cell-based and human intervention studies are recommended to draw valuable information about potential bioactivity in humans.

摘要

Microgreens 是一类新兴的新鲜食品，在空间生命的天然健康补充和支持系统方面具有很高的潜力。尽管甜菜微绿因其独特的颜色、风味和整体食用品质而受到称赞，但对其理化成分的研究却很有限。在这项研究中，甜菜（总叶绿素，类胡萝卜素，甜菜红色素，抗坏血酸，多酚类，和等价抗氧化能力（EAC）（抗坏血酸）的轮廓甜菜）至21 9天每天microgreens进行测定和他们的相关性进行了评价. 所有调查的参数在第 9 天最小，并在第 15天显着 ( p < 0.05) 增加到最大值。无显着性 ( p> 0.05) 第 15 天后叶绿素和类胡萝卜素含量降低，但所有其他参数均显着降低 ( p < 0.05)。大约 120 克新鲜微绿可以完全满足推荐的每日抗坏血酸摄入量。与其他微型蔬菜相比，叶绿素、类胡萝卜素和多酚含量较低。尽管如此，由于甜菜红素含量高，甜菜微绿具有作为抗坏血酸的高 EAC。在所有研究的参数中观察到非常高的相关性 (>0.76)。这项研究表明甜菜微绿是一种强大的天然抗氧化剂。建议进行基于细胞和人类干预的研究，以获取有关人类潜在生物活性的宝贵信息。