Abstract
Fatty acid composition and total lipid content of 8 strains of marine diatoms (Nitzschia frustrula, Nitzschia closterium, Nitzschia incerta, Navicula pelliculosa, Phaeodactylum tricornutum, Synedra fragilaroides) were examined. The microalgae were grown under defined conditions and harvested at the late exponential phase. The major fatty acids in most strains were 14∶0 (1.0%–6.3%), 16∶0 (13.5–26.4%), 16∶1n−7 (21.1%–46.3%) and 20∶5n−3 (6.5%–19.5%). The polyunsaturated fatty acids 16∶2n−4, 16∶3n−4, 16∶4n−1 and 20∶4n−6 also comprised a significant proportion of the total fatty acids in some strains. The characteristic fatty acid composition of diatoms is readily distinguishable from those of other microalgal groups. Significant concentration of the polyunsaturated fatty acid 20∶5n−3 (eicosapentaenoic acid) was present in each strain, with the highest proportion in B222 (19.5%).
Similar content being viewed by others
References
Alonso, D. L., Grima, E. M., Sanchez, P. J. A. et al., 1992. Isolation of clones ofIsochrysis galbana rich in eicosapentaenoic acid.Aquaculture 102:363–371.
Bligh, E. G., 1959. A rapid method of total lipid extraction and purification.Can. J. Biochem. Physio. 37: 911–917.
Dunstan, G. A., Volkman, J. K., Barrett, S. M. et al., 1994. Essential polyunsaturated fatty acids from 14 species of diatom (Bacillariophyceae).Phytochemistry 35: 155–161.
Grima, E. M., Medina, A. R., Gimenez, A. G. et al., 1996. Gram-scale purification of eicosapentaenoic acid (EPA, 20∶5n−3) from wetPhaeodactylum tricornutum UTEX640 biomass.J. Appl. Phycol. 8: 359–367.
Chen Mingyao, 1995. Living Food Culture. Agriculture Publishing Company. Beijing. p. 65–71. (in Chinese)
Kayama, M., Araki, S., Sato, S., 1989. Lipids of Marine Plants.In: Ackman, R. G. (ed.), Marine Biogenic Lipids, Fats, and Oils. Volume II, CRC Press, Inc. Boca Raton, Florida, p. 4–21.
Millner H. W. 1948. The fatty acids ofChlorella.J. Biochem. 176: 813–817.
Orcutt, D. M., Patterson, G. W., 1975. Sterol, fatty acid and elemental composition of diatoms grown in chemically defined media.Comp. Biochem. Physiol. 50B: 579–583.
Reitan, K. I., Rainuzzo, J. R., Olsen, Y., 1994. Effect of nutrient limitation on fatty acid and lipid content of marine microalgae.J. Phycol. 30: 972–979.
Renaud, S. M., Parry, D. L., Thinh, L. V. et al., 1991. Effect of light intensity on the proximate biochemical and fatty acid composition ofIsochrysis sp. andNannochloropsis oculata for use in tropical aquaculture.J. Appl. Phycol. 3: 43–53.
Tan, C. K., Johns, M. R., 1996. Screening of diatoms for heterotrophic eicosapentaenoic acid production.J. Appl. Phycol. 8:59–64.
Teshima, S., Yamasaki, S., Kanazawa, A. et al., 1983. Effects of water temperature and salinity on eicosapentaenoic acid level of marineChlorella.Bull. Jap. Soc. Sci. Fish. 49: 805.
Thompson, P. A., Harrison, P. J., Whyte, J. N. C., 1990. Influence of irradiance on the fatty acid composition of phytoplankton.J. Phycol. 26: 278–288.
Viso, A. C., Marty, J. C., 1993. Fatty acids from 28 marine microalgae.Phytochemistry 34: 1521–1533.
Volkman, J. K., Jeffrey, S. W., Nichols, P. D. et al., 1989. Fatty acid and lipid composition of 10 species of microalgae used in mariculture.J. Exp. Mar. Biol. Ecol. 128:219–240.
Yongmanitchai, W., Ward, O. P., 1989. ω−3 fatty acid. Alternative sources of production.Process Biochem. 8: 117–125.
Yongmanitchai, W., Ward, O. P., 1991. Growth and omega−3 fatty acid production byPhaeodactylum tricornutum under different culture conditions.Appl. Envir. Microbiol. 57: 419–425.
Zhou Hongqi, Renaud, S. M., Parry, D. L., 1996. Effect of temperature on growth, total lipid content and fatty acid composition of the microalgae,Nitzschia closterium, Nitzschia paleacea and Pavlova sp.J. Fish. China. 20: 235–240. (in Chinese)
Zhukova, N. V., Aizdaicher, N. A., 1995. Fatty acid composition of 15 species of marine microalgae.Phytochemistry 39: 351–356.
Author information
Authors and Affiliations
Additional information
Project supported by the Hi-Tech “863” Programs of the China Ministry of Science and Technology (863-819-02-01).
Rights and permissions
About this article
Cite this article
Ying, L., Kang-sen, M. & Shi-chun, S. Total lipid and fatty acid composition of eight strains of marine diatoms. Chin. J. Ocean. Limnol. 18, 345–349 (2000). https://doi.org/10.1007/BF02876083
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02876083