Apple Freshness Comparison

Application

Measuring ripeness and firmness of fresh apples.

  

Problem

This processor did not have a way to objectively or quantitatively measure the texture of their products. Current methods for evaluating ripeness and firmness of apples were done through sensory panel testing and use of a penetrometer which both gave inconsistent and unreliable data.

 

Solution

Apple firmness is mesured from the peak penetrometer force

Testing was performed with a TMS-Pro Texture Analyzer, a 500N load cell and a 5mm diameter steel cylinder probe. The apples were held in place with the TMS spherical sample holder. Taking into account that all apples are not identical in shape/size, the program was written to first start at zero then run down at 50mm/min until it sensed the top of the apple. Next, run into the apple 15mm at 250mm/min, then return to zero. The graph shows the curves from 3 types of apples in which 2 samples of each type were ran. The initial upward slope is the cylinder probe penetrating the apple. The peak represents when the outside skin is ruptured. The rest of the curve represents the probe penetrating through the flesh of the apple. This graph shows the Fuji and Granny Smith apples were similar in firmness, with Granny Smith being slightly firmer and the Golden Delicious apples being the least firm.

Trusted by customers across the world

I have been working with FTC for the past 3 years, we bought in that lapse of time 2 texture analyzers with different probes fixtures for all kind of applications at our Monterrey Plant. We have always been able to count on the technical support of FTC who kindly answers our requests in a prompt manner and with the best disposition.

As we continue developing our process to achieve better results at our company, we will for sure rely on FTC for technical support and equipment upgrades that will deliver us the best possible results.

Claudia Rojas, Hershey Monterrey Plant - Mexico
Asst. Staff Scientist
https://www.hersheys.com

Our experience with FTC has been more than satisfactory, not only for the quality of the equipment you’ve got but for the post selling service that has proved to be excellent.

Any problem that we had, it took nothing more than a simple mail or phone call to have your immediate answer. We want to thank you very much for the quality of service provided.

 

 

Gonzalo Moraes, Arrozur S.A. Montevideo – Uruguay

I am impressed by the great attitude you have toward your customers.

With all the responsibilities you have, but in less than an hour you reply to our one year’s worth of questions, as if you are dedicated to provide support to our company only.

 

 

Ahmed N. Alajaji, Aljazirah Dates and Food, Saudi Arabia
http://www.aljazirahdates.com.sa