> Detailanzeige

Pinsirodom, Praphan; Parkin, Kirk L.

Selectivity of potato tuber lipid acyl hydrolase toward long‐chain unsaturated FA in esterification reactions with glycerol analogs in organic media

Literatur-
verwaltung

Zur
Merkliste

Lösche von
Merkliste

Per Whatsapp teilen

Schließen

Merkliste



Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
  • Medientyp: E-Artikel
  • Titel: Selectivity of potato tuber lipid acyl hydrolase toward long‐chain unsaturated FA in esterification reactions with glycerol analogs in organic media
  • Beteiligte: Pinsirodom, Praphan; Parkin, Kirk L.
  • Erschienen: Wiley, 2003
  • Erschienen in: Journal of the American Oil Chemists' Society
  • Sprache: Englisch
  • DOI: 10.1007/s11746-003-0699-8
  • ISSN: 0003-021X; 1558-9331
  • Schlagwörter: Organic Chemistry ; General Chemical Engineering
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Abstract</jats:title><jats:p>FA selectivity of a Celite‐immobilized potato lipid acyl hydrolase (LAH) in esterification reactions with long‐chain FA, including stearic acid (18∶0), oleic acid (18∶1), linoleic acid (18∶2), α‐linolenic acid (18∶3), EPA (20∶5), and DHA (22∶6), and alcohol co‐substrates (<jats:italic>n</jats:italic>‐propanol, isopropanol, 1,3‐propanediol, and glycerol) was studied in isooctane. Immobilized LAH was selective for FA of greater degrees of unsaturation (18∶3&gt;18∶2&gt;18∶1&gt;18∶0) for all alcohol acceptors evaluated. Selectivity of LAH toward unsaturated C<jats:sub>18</jats:sub> FA increased with an increase in water activity (<jats:italic>a</jats:italic><jats:sub><jats:italic>w</jats:italic></jats:sub>) from 0.19 to 0.90 for <jats:italic>n</jats:italic>‐propanol, isopropanol, and 1,3‐propanediol as alcohol co‐substrates. In contrast, with glycerol as the alcohol cosubstrate, selectivity of LAH toward these unsaturated C<jats:sub>18</jats:sub> FA increased with a decrease in <jats:italic>a</jats:italic><jats:sub><jats:italic>w</jats:italic></jats:sub> from 0.90 to 0.19. In addition, immobilized LAH strongly discriminated against EPA and DHA for both 1,3‐propanediol and glycerol as alcohol co‐substrates.</jats:p>