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Table 1 Synthesis of 1, 3-DAG a under different reaction conditions.

From: Solvent-free enzymatic synthesis of 1, 3-Diacylglycerols by direct esterification of glycerol with saturated fatty acids

Fatty acid speciesb

Time (h)

Temperature (°C)

Purification

1,3-DAG (%)contentc

C8:0

6

40

column (twice)

98.5

C10:0

5

45

column (twice)

99.2

C12:0

3

50

recrystallization

99.1

C16:0

2

65

recrystallization

99.5

C18:0

2

70

recrystallization

99.4

  1. aReaction conditions: Fatty acid 20 mmol, glycerol 10 mmol, lipase amount 5 wt% of reactants, vacuum applied 4 mm Hg.
  2. bC8:0 caprylic acid; C10:0 capric acid C12:0 lauric acid; C16:0 palmitic acid; C18:0 stearic acid.
  3. c1, 3-DAG content after purification.
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Lipids in Health and Disease

ISSN: 1476-511X