Please wait a minute...

中国生物工程杂志

China Biotechnology
China Biotechnology  2015, Vol. 35 Issue (11): 61-69    DOI: 10.13523/j.cb.20151109
    
Rapid Detection of Neutral Lipids by HPLC-ELSD in Microalgae
MENG Ying-ying1,2, WANG Hai-tao1,3, CAO Xu-peng1, XUE Song1, YANG Qing2, WANG Wei-liang4
1. Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
2. School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116622, China;
3. University of Chinese Academy of Sciences, Beijing 100084, China;
4. State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
Download: HTML   PDF(1098KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

The total lipids extracted from microalgae are different from the plant lipids, which are whole-cell extracts. The composition is very complex, existing low polar compounds similar with triglycerides (TAG) on chromatographic retention properties. A rapid and efficient method for determination of neutral lipids in microalgae using HPLC-ELSD was developed by optimizing the analytical columns. The chromatographic separation was performed on a Diol analytical column (250mm×4.6mm, 5μm) by the gradient elution with hexane and isopropanol. The calibration of TAG, free fatty acid (FFA), diacylglycerol (DAG) and moacylglycerol (MAG) showed good linearity. The recoveries of TAG spiked in I. zhangjiangensis and N. oceanica IMET1 were in the range of 96.2%~113.1% and the relative standard deviations 0.46%~4.8%. This method was applied to determine the TAG content of I. zhangjiangensis and N. oceanica IMET1 and compared with traditional solid-phase extraction (SPE) and the common used TLC/GC method. Compared with the above two methods, this method is simple and accurate for the determination of TAG in microalgae.



Key wordsNeutral lipids      Isochrysis zhanjiangensis      TAG quantification      Nannochloropsis oceanica IMET1      TLC/GC     
Received: 08 June 2015      Published: 24 November 2015
ZTFLH:  Q542  
Cite this article:

MENG Ying-ying, WANG Hai-tao, CAO Xu-peng, XUE Song, YANG Qing, WANG Wei-liang. Rapid Detection of Neutral Lipids by HPLC-ELSD in Microalgae. China Biotechnology, 2015, 35(11): 61-69.

URL:

https://manu60.magtech.com.cn/biotech/10.13523/j.cb.20151109     OR     https://manu60.magtech.com.cn/biotech/Y2015/V35/I11/61

[1] Hu Q, Sommerfeld M, Jarvis E, et al. Microalgal triacylglycerols as feedstocks for biofuel production: perspectives and advances. Plant J, 2008, 54(4): 621-639.
[2] Chisti Y. Biodiesel from microalgae. Biotechnol Adv, 2007, 25(3): 294-306.
[3] Breuer G, Lamers P P, Martens D E, et al. The impact of nitrogen starvation on the dynamics of triacylglycerol accumulation in nine microalgae strains. Bioresour Technol, 2012, 124(337): 217-226.
[4] Beermann C, Green A, Möbius M, et al. Lipid class separation by HPLC combined with GC FA analysis: comparison of seed lipid compositions from different Brassica napus L. varieties. J Am Oil Chem Soc, 2003, 80(8): 747-753.
[5] Ruiz-Gutiérrez V, Pérez-Camino M C. Update on solid-phase extraction for the analysis of lipid classes and related compounds. J Chromatogr A, 2000, 885(1-2): 321-341.
[6] Chen W, Sommerfeld M, Hu Q. Microwave-assisted Nile red method for in vivo quantification of neutral lipids in microalgae. Bioresour Technol, 2011,102(1): 135-141.
[7] Isleten-Hosoglu M, Gultepe I, Elibol M. Optimization of carbon and nitrogen sources for C biomass and lipid production by Chlorella saccharophila under heterotrophic conditions and development of Nile red fluorescence based method for quantification of its neutral lipid content. Biochem Eng J, 2012, 61: 11-19.
[8] Romek M, Barbara G, Ewa K, et al. New technique to quantify the lipid composition of lipid droplets in porcine oocytes and pre-implantation embryos using Nile Red fluorescent probe. Theriogenology, 2011, 75(1): 42-54.
[9] Gao C F, Wang Y, Shen Y, et al. Oil accumulation mechanisms of the oleaginous microalga Chlorella protothecoides revealed through its genome, transcriptomes, and proteomes. BMC Genomics, 2014, 15: 582-595.
[10] Fan J H, Cui Y B, Wan M X, et al. Lipid accumulation and biosynthesis genes response of the oleaginous Chlorella pyrenoidosa under three nutrition stressors. Biotechnol Biofuels, 2014, 7:17-30.
[11] Lin J T. HPLC separation of acyl lipid classes. J Liq Chromatogr Relat Technol, 2007, 30(13-16): 2005-2020.
[12] Rodríguez-Alcalá L M, Fontecha J. Major lipid classes separation of buttermilk, and cows, goats and ewes milk by high performance liquid chromatography with an evaporative light scattering detector focused on the phospholipid fraction. J Chromatogr A, 2010, 1217(18): 3063-3066.
[13] McLaren D G, Miller P L, Lassman M E, et al. An ultraperformance liquid chromatography method for the normal-phase separation of lipids. Anal Biochem, 2011, 414(2): 266-272.
[14] Donot F, Cazals G, Gunata Z, et al. Analysis of neutral lipids from microalgae by HPLC-ELSD and APCI-MS/MS. J Chromatogr B, 2013,942-943(24): 98-106.
[15] Wang H T, Yao C H, Ai J N, et al. Identification of carbohydrates as the major carbon sink of the marine microalga Isochrysis zhangjiangensis (Haptophyta) and optimization of its productivity by nitrogen manipulation. Bioresour Technol, 2014, 171: 298-304.
[16] Wang H T, Meng Y Y, Cao X P, et al. Coordinated response of photosynthesis, carbon assimilation, and triacylglycerol accumulation to nitrogen starvation in the marine microalgae Isochrysis zhangjiangensis (Haptophyta). Bioresour Technol, 2015, 177(12): 282-288.
[17] Hibberd D J. Notes on taxonomy and nomenclature of the algal classes Eustigmatophyceae and Tribophyceae (synonym Xanthophyceae). Bot J Linn Soc, 1981, 82(2): 93-119.
[18] Campos H, Boeing W J, Dungan B N, et al. Cultivating the marine microalga Nannochloropsis salina under various nitrogen sources: effect on biovolume yields, lipid content and composition, and invasive organisms. Biomass Bioenergy, 2014, 66(7): 301-307.
[19] Rodolfi L, Zittelli G C, Bassi N, et al. Microalgae for oil: strain selection, induction of lpid synthesis and outdoor mass cultivation in a low-cost photobioreactor. Biotechnol Bioeng, 2009, 102(1): 100-112.
[20] Van Vooren G, Le Grand F, Legrand J, et al. Investigation of fatty acids accumulation in Nannochloropsis oculata for biodiesel application. Bioresour Technol, 2012, 124(3): 421-432.
[21] Xiao Y, Zhang J T, Cui J T, et al. Metabolic profiles of Nannochloropsis oceanica IMET1 under nitrogen-deficiency stress. Bioresour Technol, 2013, 130: 731-738.
[22] Meng Y Y, Jiang J P, Wang H T, et al. The characteristics of TAG and EPA accumulation in Nannochloropsis oceanica IMET1 under different nitrogen supply regimes. Bioresour Technol, 2015, 179: 483-489.
[23] Kobayashi N, Noel E A, Barnes A, et al. Rapid detection and quantification of triacylglycerol by HPLC-ELSD in Chlamydomonas reinhardtii and Chlorella Strains. Lipids, 2013, 48(10): 1035-1049.
[24] Li X B, Moellering E R, Liu B S, et al. A galactoglycerolipid lipase is required for triacylglycerol accumulation and survival following nitrogen deprivation in Chlamydomonas reinhardtii. Plant Cell, 2012, 24(11): 4670-4686.
[25] Simionato D, Block M A, La Rocca N, et al. The response of Nannochloropsis gaditana to nitrogen starvation includes de novo biosynthesis of triacylglycerols, a decrease of chloroplast galactolipids, and reorganization of the photosynthetic apparatus. Eukaryot Cell, 2013, 12(5): 665-676.

[1] FENG Di-na, AI Jiang-ning, LIU Ya-nan, CHEN Zhao-an, XUE Song, ZHANG Wei. Effects of Nitrogen-containing Media on the Accumulation of Lipid and Carbohydrate in Marine Microalgae Isochrysis zhanjiangensis[J]. China Biotechnology, 2011, 31(10): 29-34.