Enzymatic hydrolysis and extraction of arachidonic acid rich lipids from Mortierella alpina

Jiang Ying You, Chao Peng, Xin Liu, Xiao Jun Ji, Jinmiao Lu, Qianqian Tong, Ping Wei, Leilei Cong, Zhiyong Li, He Huang

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

A novel method for efficient arachidonic acid rich lipids extraction was investigated. Six different enzymes (papain, pectinase, snailase, neutrase, alcalase and cellulase) were used to extract lipids from Mortierella alpina. The effects of enzyme concentration, temperature and hydrolysis time on oil recovery were evaluated using factorial experimental design and polynomial regression for each enzyme. Hydrolysis time is found to be the most important parameter for all enzymes. The ratios of enzyme mixtures were also studied. It showed that the mixtures of pectinase and papain (5:3, v/v), pectinase and alcalase (5:1, v/v) were better combined effects on oil yields. The effects of hydrolysis time and temperature were then analyzed by response surface methodology, and oil recoveries were satisfactory (104.6% for pectinase and papain and 101.3% for pectinase and alcalase). In the whole process, the lipid composition was not affected by the enzyme treatments according to fatty acid profile.

Original languageEnglish
Pages (from-to)6088-6094
Number of pages7
JournalBioresource Technology
Volume102
Issue number10
DOIs
StatePublished - May 2011

Keywords

  • Arachidonic acid
  • Enzymatic hydrolysis
  • Mortierella alpina
  • Oil extraction

Fingerprint

Dive into the research topics of 'Enzymatic hydrolysis and extraction of arachidonic acid rich lipids from Mortierella alpina'. Together they form a unique fingerprint.

Cite this