Instrumental texture analysis.
For one-cycle compression,
a Texture Analyzer
(LLOYD instruments, Fareham, UK)
was used to
measure the for ceetime curve.
All experiments
were conducted in
a controlled temperature room at 25 C.
A cylinder probe (diameter 19 mm)
compressed date syrup,
placed in a plastic
food container at
fixed quantity.
The thickness of date syrup was 45 mm.
The crosshead was allowed
to descend at the
rate of 40 mm/min to
a total compression
at 20 mm in all experiments.
The instrument
automatically recorded
the forceetime curve.
All operations were
automatically controlled
by the texture
“Nexygen Lot” software
connected to the
instrument Firmness (g)
is the peak force of the
compression of
the product and
was measured
by the Nexygen MT
machine software.
Three replicates
were conducted
at each sample.