Authors: Moreno-Garc
Identifier: CSBE12081
Download file: https://library.csbe-scgab.ca/docs/meetings/2012/CSBE12081.pdf
Published in: CSBE-SCGAB Technical Conferences » AGM NABEC-CSBE Orillia 2012

Download RAW file:
DOI:
Description: Dietary ?-3 fatty acids are implicated as critical nutrients in the development of eye and brain function in infants. Epidemiological and intervention studies have shown that by increasing the intake of dietary ?-3 fatty acids, the risk of coronary heart disease is decreased. The use of lipases on the enrichment and incorporation of n-3 fatty acids into glyceride structure as well as the lipase regioselectivity and affinity for different substrates have been explored. Due to its similar activity towards the fatty acids having a different chain length and unsaturation degree, Candida antarctica lipase fraction B, has been successfully used for the production of n-3 fatty acids enriched glycerides. In this work, the effects of temperature (35 to 60?C) and free fatty acids/glycerol ratio (1.5 to 2.5) on glyceride production were tested. The reaction was catalyzed by Candida antarctica lipase fraction B by a polyesterification reaction from glycerol and a preparation of n-3 enriched free fatty acids from fish oil in a solvent system. According to our results, the production of triacylglycerols, 1,3-diacylglycerols and 1(3)-monoacylglicerols was affected by substrates molar ratio, while the production of triacylglycerols and 1(3)-monoacylglycerols was affected by both, substrates molar ratio and reaction temperature. Under our experimental conditions, the main product obtained were triacylglycerols with a concentration up to 0.9178 mM at 64

Keywords: candida antarctica fraction b, n-3 fatty acids, glycerides, esterification reaction.
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2012
Technical field: technical_fields_app4
Conference name:
Session name: Food and bioprocess engineering

Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Mexico
Language 1:
Language 2:
Rights:
Notes:
Other files: