2.3. TAG composition
The TAG composition determination was performed by GLC
with an Agilent 6850 Series GC System USA.
A capillary column DB-
17HT Agilent (50% phenyl-methylpolysiloxane,15m_ 0.25mmi.d.,
0.15 mm film thickness) was used. The operating conditions were:
split, ratio of 1:100; column temperature: 250 _C, programmed to
340 _C at the rate of 5 _C/min; carrier gas: helium, at a flow rate of
1.0 mL/min; injector temperature: 375 _C, detector temperature:
375 _C; injected volume: 1.0 mL; sample concentration: 100 mg/
5 mL of tetrahydrofuran. The identification of TAGs peaks was
performed by comparison of the retention times, according to the
procedure of Antoniosi Filho, Mendes, and Lanças (1995). The
analysis was performed in duplicate for each blend sample.