AMETEK Brookeld Page 40 Manual No. M08-372-F1116
READING:
Peak Positive Force
HARDNESS
Total Negative Area
Adhesiveness
(Indication of Viscosity)
t
F
Peak Negative Force
ADHESIVE FORCE
Total Positive Area
Consistency
Fat Free
Low Fat
Modulus
Gradient
(from initial
curve only)
DISCUSSION:
Once the trigger is attained, the force continues to increase until a surface
fracture occurs. The modulus changes at this point to a less steep gradient,
and the force nearly reaches a plateau.
The low-fat sample appears much softer than the fat-free, having increased
ow over the plunger with a visually less grainy and more glossy uid
appearance. The softer set is characterized by the lower forces and areas
of work measured, as well as the shallower slope. The softer set is also
characterized by the failure to form sample fracture and the absence of peaks
within the curve.
The fat-free sample has a much steeper initial gradient and subsequently higher
values for all measured parameters. Its grainy set structure is characterized
by the large number of peaks attained within the curve, while the increased
viscosity or spoonability is shown within the negative portion of the curve.
PARAMETER
COLLECTION: Peak force and work (area under load curve) will show on CT3 display when
used as stand alone. With an attached computer and TexturePro CT software
modulus and many other parameters are available.
PARAMETERS: HARDNESS Force necessary to attain a given deformation
WORK Internal strength of bonds within a product
(Total Positive Area)
ADHESIVENESS Work necessary to overcome attractive forces
(Total Negative Area) between surface of the food and the materials
with which it comes into contact.
ADHESIVEFORCE Force required to “pull” probe from sample
(suction).
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