Department of Food Technology and Science, Federal University of Santa Maria (UFSM), P.O. Box 5021, Santa Maria 97105-900, Brazil.
Department of Food Science, University of Campinas (UNICAMP), Monteiro Lobato, 70, Campinas 13083-862, Brazil.
Food Res Int. 2017 Oct;100(Pt 1):260-266. doi: 10.1016/j.foodres.2017.06.069. Epub 2017 Jun 29.
Carotenoids from cyanobacteria Aphanothece microscopica Nageli and green microalgae Chlorella vulgaris and Scenedesmus obliquus were identified. The total carotenoid content, based on dry weight of biomass, of A. microscopica Nägeli, C. vulgaris and S. obliquus were 1398.88μg/g, 1977.02μg/g and 2650.70μg/g, respectively. A total of 23 different carotenoids were separated in all the extracts, the major ones being all-trans-β-carotene (29.3%) and all-trans-lutein (28.1%) in Scenedesmus; all-trans-echinenone (22.8%) and all-trans-β-carotene (17.7%) in Chlorella; all-trans-echinenone (28.3%) and all-trans-β-carotene (26.2%) in Aphanothece. The carotenoid extracts were shown to be a potent scavenger of peroxyl radical, with values of 31.1 (Chlorella), 14.0 (Scenedesmus) and 7.3 (Aphanothece) times more potent than α-tocopherol.
鉴定了蓝藻鱼腥藻和绿藻小球藻和斜生栅藻中的类胡萝卜素。鱼腥藻、小球藻和斜生栅藻的总类胡萝卜素含量（基于生物量干重）分别为 1398.88μg/g、1977.02μg/g 和 2650.70μg/g。在所有提取物中分离出了 23 种不同的类胡萝卜素，其中主要的是斜生栅藻中的全反式-β-胡萝卜素（29.3%）和全反式叶黄素（28.1%）；小球藻中的全反式玉米黄质（22.8%）和全反式β-胡萝卜素（17.7%）；鱼腥藻中的全反式玉米黄质（28.3%）和全反式β-胡萝卜素（26.2%）。结果表明，类胡萝卜素提取物是过氧自由基的有效清除剂，其清除能力分别是α-生育酚的 31.1（小球藻）、14.0（斜生栅藻）和 7.3（鱼腥藻）倍。
