Guide pricing

Register now to view our guide prices in just a few seconds.

If you're just starting your search for a tensile tester then our guide prices include test frame, software, installation and ongoing support. Excludes price of load sensor and accessories.

Would you like a formal quote or a demo?

You can also request a free formal quotation and demonstration if you want to discuss your test requirements with an engineer.

What is Mecmesin | Texture Analysis?

 

Mecmesin | Texture Analysis is the rebrand of our Food Technology Corporation (FTC) business under our parent Mecmesin brand.

Through our 15 plus year association with FTC, Mecmesin has built up extensive experience in practical food texture measurement.

This rebrand is part of our strategy to emphasise the strength of our capabilities and to grow our food texture analysis business.

Our expertise combined with our cost effective solutions for field, factory and laboratory test environments makes us the ideal partner for your texture measurement needs.

Texture Analysis SolutionsMushrooms (Canned) Firmness Effect of Salt

Highlights

  • Alternative formulations correlated to the physical properites of the canned product
  • Repeatable test method for comparative results using a software-controlled texture analyzer
  • Industry-standard bulk compression-shear fixture to accurately replicate bite and chew effort
  • Quantified hardness texture profile to verify processing additives have minimal impact on customer acceptance

Situation

A producer of canned mushrooms uses simple subjective measurements to evaluate the final texture of their product. The information is often used to make adjustments to the process. Their real need, however, is to obtain objective data that represents the sensory evaluation. Our example here demonstrates how this can easily be done using a food texture analyzer. For the particular test, an unsalted (control) product and a low-salt equivalent were compared.

 

 

 

 

Method

A Food Technology Corporation (FTC) TMS-Pro Texture Analyzer was fitted with a 2.5 kN intelligent loadcell, along with a Kramer shear compression cell. This type of test cell is designed for testing products in a bulk form instead of small samples, compressing and extruding the contents with multiple blades. This method of testing generally produces more consistent results than simple probe or plate compression, achieving average texture values across the bulk sample. Each test used a whole can of drained mushrooms, which was allowed to stand for 90 seconds before being added to the shear cell.

The TL-Pro control and analysis software was programmed to move the blades of the test cell down at a speed of 250 mm/min to a distance far enough to ensure that the product was completely expressed through the bottom of the test cell. On completion of the test cycle, the software automatically calculated the peak force of compression or ‘firmness’ of the sample. In addition, the work done (energy spent, or area under the curve) was calculated as an additional defining factor.

 

Results

The graphical representation from TL-Pro, of the test results for the four samples, is shown here (force applied, against cumulative displacement).

The control and salted samples show no great distinction, there being no clear division of groups of traces. Lines cross, but generally with a greater peak force found in the unsalted samples, showing that firmness can increase at greater compression and extrusion depending on the product formulation.

The same results with additional calculations are shown here.

  • Average = arithmetic mean
  • SD = standard deviation
  • CV = coefficient of variation: (SD/Mean) x 100

 

Significance

Consistency in the results demonstrates that this method of testing is reliable, repeatable and detailed. Peak values over bulk testing are a valid and useful comparison. Firmness in itself may, however, be variable across the test, since shear is taking place, not just compression. The energy expended in completing the cycle could provide a more useful comparison figure, as may firmness at specific displacements. What we have demonstrated, however, is that objective and detailed data are available with computerized texture analysis that cannot be obtained any other way. These data provide an invaluable way to compare product formulations against subjective evaluations of what is a desired texture experience, and then to automate testing for acceptability.

Talk to your nearest representative for your country about solutions, pricing and support
 

Got a question about a solution? Get in touch and speak to one of our Technical Sales Engineers now...

Speak to an expert