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Yeast Firmness

Specification

Texture testing a yeast block for firmnessA processor of yeast blocks was looking for a quantifiable, consistent way to measure and ultimately better control the texture of their product. Current methods involved simple visual inspections and very subjective human sensory evaluation. Yeast blocks are extremely susceptible to either drying out too quickly or retaining moisture and becoming clay-like if not handled and packaged in the proper manner. In addition, the company runs different formulations and therefore the texture will vary between formulations. Because of these factors, a consistent and repeatable method of measuring and therefore controlling the texture is essential.

 

 

Method

yeast block firmness graphBefore testing, samples were left in their wrapping to hold the sample together for testing. All testing was done using a TMS-Pro with a 4mm cylinder probe which ran at a speed of 50 mm/min and 15mm into the block. The graph to the right shows the probe entering the product (1st curve) and the probe exiting the product (curve under line). This negative force tells us how the product fractures, if at all, when probe is exiting. This indicates whether the product is dry and crumbly or moist and sticky.

 

 

Significance

Test method and system proved differences between blocks of different formulations Allows for more concise control of textural attributes of the product Reduces the possibility of downtime due to a product that does not meet quality standard.

yeast block firmness results tables

Trusted by customers across the world

Nestle purchased a texture system from Food Technology Corporation in 2006. Since then I have recommended the texture system to several vendors in North and Central America. Staff at FTC was able to develop a simple training manual and procedure for the texture system allowing easy training in short period of time.

From purchasing of equipment through to installation and start-up, the level of personal care and service was remarkable. Shirl Lakeway and his staff at Food Technology Corporation are patient and understanding, and are always at our disposal for any assistance. Since we bought the equipment we have had no problems and feel very secure knowing that we can count on FTC for their support and service.

Dr Mawele Shamaila, Nestle - USA
http://www.nestleusa.com/

My first contact with FTC was through buying texture analyzer equipment as my area of interest is Rheology. We faced a problem operating the appliance. The company tried hard to help us through the internet, but the University thought it was better to send me to the company branch located in England. I received a highly advanced training course for 10 days free of charge. They provided me with programs that operate the equipment along with the information needed.

It was a great effort and outstanding support. I would like to thank Shirl Lakeway and FTC for providing me with this opportunity and for his continuous help. Finally, I encourage researchers who are interested in the physical properties of foods and dairy to choose FTC as it is a respectable and dependable company and offers the best deals concerning prices and training with different languages, such as Arabic for the Middle East.

Professor Hoda El-Zeini, Dairy Science and Agriculture University - Cairo, Egypt
Professor
https://cu.edu.eg

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