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Enzymatic synthesis of structured lipids using a novel cold-active lipase from Pichia lynferdii NRRL Y-7723

Authors
Kim, Hak-RyulHou, Ching T.Lee, Ki-TeakKim, Byung HeeKim, In-Hwan
Issue Date
1-10월-2010
Publisher
ELSEVIER SCI LTD
Keywords
Acidolysis; Borage oil; Caprylic acid; Enzyme loading; Novel lipase; Regiospecifity; Structured lipids; Temperature
Citation
FOOD CHEMISTRY, v.122, no.3, pp.846 - 849
Indexed
SCIE
SCOPUS
Journal Title
FOOD CHEMISTRY
Volume
122
Number
3
Start Page
846
End Page
849
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115536
DOI
10.1016/j.foodchem.2010.03.067
ISSN
0308-8146
Abstract
Structured lipids (SL) were synthesized by the acidolysis of borage oil with caprylic acid using lipases. Six commercial lipases from different sources and a novel lipase from Pichia lynferdii NRRL Y-7723 were screened for their acidolysis activities and Lipozyme RM IM and NRRL Y-7723 lipase were selected to synthesize symmetrical SL since recently NRRL Y-7723 lipase was identified as a novel cold-active lipase. Both lipases showed 1,3-regiospecifity toward the glycerol backbone of borage oil. The effects of enzyme loading and temperature on caprylic acid incorporation into the borage oil were investigated. For Lipozyme RM IM and NRRL Y-7723 lipase, the incorporation of caprylic acid increased as enzyme loading increased up to 4% of total weight of the substrate, but significant increases were not observed when enzyme loading was further increased. The activity of NRRL Y-7723 lipase was higher than that of Lipozyme RM IM in the temperature range between 10 and 20 degrees C. (C) 2010 Elsevier Ltd. All rights reserved.
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Kim, In Hwan
보건과학대학 (바이오시스템의과학부)
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