title: Concurrent production of carotenoids and lipid by a filamentous microalga Trentepohlia arborum.
abstract: During the study of Trentepohlia arborum it became clear that its cells are rich in lipids and carotenoids. Thus, lipid content, composition and fatty acids profiles in individual lipid classes, as well as pigment profiles, responding to different culture conditions, were further investigated. The results showed that the predominant carotenoids and lipid fraction in total lipid in this study was β-carotene and TAG, respectively. The lipid content increased significantly under high light while nitrogen-replete conditions induced the highest carotenoids content. However, only with a double stress of high light and nitrogen-deficiency it was possible to maximize the productivities of both carotenoids and lipids. Carotenoids (mainly β-carotene) accounted for ca. 5% of the microalgal lipid under the double stress. Data herein show the potential of T. arborum for the production of both lipids and carotenoids, and hence provide an appropriate way to produce different products from T. arborum.
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, People's Republic of China; College of Food Science and Engineering Ocean University of China, Qingdao 266003, People's Republic of China.
authors.forename: Lanlan
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, People's Republic of China. Electronic address: liutz@qibebt.ac.cn.
authors.forename: Tianzhong
authors.initials: T
authors.lastname: Liu
mesh_terms: D002338:Carotenoids / Q000096:biosynthesis*; D005227:Fatty Acids / Q000096:biosynthesis; D008055:Lipids / Q000096:biosynthesis*; D058086:Microalgae / Q000378:metabolism*; D019207:beta Carotene / Q000096:biosynthesis
chemical_list: D005227:Fatty Acids; D008055:Lipids; D019207:beta Carotene; D002338:Carotenoids
keywords: Edible oil; Fatty acid; Microalga; Trentepohlia arborum; β-Carotene