FIRMNESS MEASUREMENT OF PROCESSED TABLE BEETS

Area of Science:

• Food Science
• Agricultural Engineering
• Sensory Evaluation

Background:

• Assessing the textural quality of processed table beets is crucial for consumer acceptance and product development.
• Existing methods for texture analysis can be time-consuming or lack precision.

Purpose of the Study:

• To develop and validate a rapid back extrusion method for estimating the textural quality of processed table beets.
• To compare the efficacy of this new method against traditional taste panel evaluations and a puncture test.

Main Methods:

• A rapid back extrusion technique was employed to measure the force-distance relationship during sample deformation.
• The mean of fluctuations in the force-distance plateau was used as a key indicator of firmness.
• Results were statistically correlated with sensory data from taste panel evaluations and measurements from a puncture method.

Main Results:

• The back extrusion method showed high correlation with taste panel evaluations for both commercial (r=0.91) and experimental (r=0.98) table beet samples.
• The mean of fluctuations provided a more consistent firmness value compared to the maximum force recorded.
• The extrusion method demonstrated strong agreement with a standard puncture test (r=0.91).

Conclusions:

• The rapid back extrusion method is a reliable and efficient tool for objectively assessing the textural quality of processed table beets.
• This method offers a viable alternative to subjective sensory evaluations and other mechanical testing techniques.
• The findings support the use of this back extrusion technique in food quality control and research settings.