title: The Potential of Microalgae Lipids for Edible Oil Production.
abstract: The objective of this study was to evaluate the potential of oil-rich green algae, Chlorella vulgaris, Scenedesmus obliquus, and Nannochloropsis oceanica, to produce edible oil with respect to lipid and residue properties. The results showed that C. vulgaris and N. oceanica had similarly much higher lipid recovery (about 50 %) in hexane extraction than that of S. obliquus (about 25 %), and C. vulgaris had the highest content of neutral lipids among the three algae. The fatty acid compositions of neutral lipids from C. vulgaris and S. obliquus were mainly C16 and C18, resembling that of vegetable oils. ARA and EPA were the specific valuable fatty acids in lipids of N. oceanica, but the content of which was lower in neutral lipids. Phytol was identified as the major unsaponifiable component in lipids of the three algae. Combined with the evaluation of the ratios in SFA/MUFA/PUFA, (n-6):(n-3) and content of free fatty acids, lipids obtained from C. vulgaris displayed the great potential for edible oil production. Lipids of N. oceanica showed the highest antioxidant activity, and its residue contained the largest amounts of protein as well as the amino acid compositions were greatly beneficial to the health of human beings.
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Beijing, 100190, People's Republic of China.|University of Chinese Academy of Sciences, No.19A Yuquan Road, Shijingshan District, Beijing, People's Republic of China.
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Huang
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Beijing, 100190, People's Republic of China.
authors.forename: Dongmei
authors.initials: D
authors.lastname: Zhang
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Beijing, 100190, People's Republic of China.
authors.forename: Shengzhang
authors.initials: S
authors.lastname: Xue
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Beijing, 100190, People's Republic of China.
authors.forename: Meng
authors.initials: M
authors.lastname: Wang
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Beijing, 100190, People's Republic of China. weicong@ipe.ac.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Cong
mesh_terms: D020418:Algal Proteins / Q000032:analysis; D000596:Amino Acids / Q000032:analysis; D000975:Antioxidants / Q000378:metabolism; D005591:Chemical Fractionation; D005227:Fatty Acids / Q000378:metabolism; D020128:Inhibitory Concentration 50; D008055:Lipids / Q000096:biosynthesis* / Q000302:isolation & purification; D058086:Microalgae / Q000378:metabolism*; D009821:Oils / Q000378:metabolism*
chemical_list: D020418:Algal Proteins; D000596:Amino Acids; D000975:Antioxidants; D005227:Fatty Acids; D008055:Lipids; D009821:Oils
keywords: Algal residue; Antioxidant capacity; Edible oil; Fatty acids; Microalgae