Erdoğan Ayşegül, Karataş Ayça Büşra, Demirel Zeliha, Conk Dalay Meltem
Ege University Application and Research Centre For Testing and Analysis (EGE MATAL), İzmir, Turkey.
Department of Bioengineering, Faculty of Engineering, Ege University, İzmir, Turkey.
Turk J Chem. 2022 Feb 3;46(3):796-804. doi: 10.55730/1300-0527.3369. eCollection 2022.
Microalgae with their improved growth rates and accumulation of high-value-added products make their commercial production attractive. Among them, lutein, which is a carotenoid, plays a very important role due to its various applications in the food and pharmaceutical industry. Induction of its biosynthesis can be triggered by various stress conditions like light. In this study, three different light intensities (50,150 and 300 μmol photons/ms) and aeration rates (1, 3, and 5 L/min) were utilized to induce the lutein biosynthesis and biomass productivity in . Lutein was isolated by preparative chromatography using a semiprep C column (10 × 250 mm, 5μm) and its confirmation was made by LC-MS/MS. According to the results, synthesized the maximum lutein (8.01 ± 0.1 mg/g) with biomass productivity of 1.698 g/L at 150 μmol photons/ms light intensity using 3 L/min as aeration rate. To the best of the authors' knowledge, this was the first study that the lutein was isolated by preparative chromatography using semiprep C carotenoid column with a simple and rapid separation, which can be used as a reference methodology for the isolation of other carotenoids. can be an important alternative source for commercial production of lutein, as it is indicated from the results of this study.
微藻因其提高的生长速率和高附加值产品的积累,使其商业化生产具有吸引力。其中,叶黄素作为一种类胡萝卜素,由于其在食品和制药行业的多种应用而发挥着非常重要的作用。其生物合成的诱导可以由各种应激条件如光照触发。在本研究中,利用三种不同的光照强度(50、150和300 μmol光子/平方米·秒)和通气速率(1、3和5升/分钟)来诱导叶黄素的生物合成和生物量生产力。叶黄素通过使用半制备C柱(10×250毫米,5微米)的制备色谱法分离,并通过液相色谱-串联质谱法进行确认。根据结果,在光照强度为150 μmol光子/平方米·秒、通气速率为3升/分钟的条件下, 合成了最大量的叶黄素(8.01±0.1毫克/克),生物量生产力为1.698克/升。据作者所知,这是首次使用半制备C类胡萝卜素柱通过制备色谱法分离叶黄素的研究,该方法分离简单快速,可作为分离其他类胡萝卜素的参考方法。从本研究结果表明, 可以成为叶黄素商业化生产的重要替代来源。