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Fruit Snack Yield and Firmness Consistency

Highlights

  • Objective measurement test method to evaluate the sensory bite strength experienced from a chewy fruit snack product
  • Repeatable and quick test method using a software-controlled texture analyzer
  • Precision penetration probe fixture to compress and ultimately pierce the sample then to pass into the product
  • Quantified hardness texture attribute correlated to initial bite resistence and subsequent complete bite force characteristics

Requirement

texture evaluation of fruit snacks

A company producing fruit snacks needed a way to measure the texture of their products to ensure a consistent finished product. Since the raw materials used can vary over time, the production process needs to be adjusted accordingly. Current quality control methods were completely subjective and the results varied from person to person. A way to objectively and accurately measure the product was required.
 

 

 

 

Solution

texture evaluation of fruit snacksAfter several trials, it was determined that a simple penetration test would work well. This method was found to yield consistent data on the product and was quick and easy to set up. The samples were placed on a flat plate and punctured using a blunt, 3mm diameter, stainless steel probe.

Care was taken to select samples of very similar shape and size. Each sample was penetrated at a speed of 200mm/min to a distance of 20mm. Calculations of the peak force encountered and the work (area under the curve) were performed.

 

 

 

Benefit

texture evaluation of fruit snacks

• The customer can now obtain objective measurements that correlate to historical subjective evaluations

• Simple test method allows a large number of repetitions to be performed for meaningful statistical analysis

• Results are easily exported to other programs for further analysis and long term SPC

  

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