Acid-catalyzed hot-water extraction of docosahexaenoic acid (DHA)-rich lipids from Aurantiochytrium sp. KRS101

Sun A. Choi, Joo Young Jung, Kyochan Kim, Jin Suk Lee, Jong Hee Kwon, Seung Wook Kim, Ji Won Yang, Ji Yeon Park

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

In this study, acid-catalyzed hot-water extraction of docosahexaenoic acid (DHA)-rich lipids from Aurantiochytrium sp. was performed, and its yield-enhancing effects were investigated. The total fatty acid content of the Aurantiochytrium sp. was 482.5mg/g cell, of which 141.7mg/g cell (29.4% of total fatty acids) was DHA. The lipid-extraction yield by acid-catalyzed hot-water treatment was compared with those by organic solvents. Among the various acid-catalyzed hot-water treatment conditions, the most optimal were 1.00% H2SO4 concentration, 100°C, 30min, under which the lipid-extraction yield was 472.4mg/g cell, and most of the DHA was extracted (29.2% of total fatty acids). Acid-catalyzed hot-water extraction treatment markedly improved the lipid-extraction yield of Aurantiochytrium sp.

Original languageEnglish
Pages (from-to)469-472
Number of pages4
JournalBioresource technology
Volume161
DOIs
Publication statusPublished - 2014 Jun

Keywords

  • Acid-catalyzed hot-water extraction
  • Aurantiochytrium sp
  • Docosahexaenoic acid
  • Fatty acid content
  • Microalgal lipids

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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