We recently received an enquiry from a company supporting the potato processing industry, asking whether rapid glucose testing could be used to assess incoming potato deliveries.
It is an interesting application and one that highlights both the strengths and challenges of electrochemical biosensing in food production.
Why Measure Glucose in Potatoes?
For potato crisp and french fry manufacturers, glucose is an important quality parameter. Reducing sugars can influence browning during frying, affecting both product appearance and consistency.
As a result, there is considerable interest in methods that can provide a rapid indication of potato glucose levels before raw material enters production.
Traditional laboratory methods can provide accurate results, but many processors would prefer a faster, more accessible measurement that can be performed closer to the point of decision making.
Can Electrochemical Sensors Measure Potato Glucose?
The short answer is yes.
Glucose is one of the best-understood analytes in electrochemical sensing, and electrochemical glucose sensors have been widely used for decades. The challenge is not whether the sensor can detect glucose, but how that measurement is integrated into a practical workflow for potato testing.
Questions that typically arise include:
- How should potatoes be sampled from a delivery?
- How should glucose be extracted from the sample?
- What level of sample preparation is required?
- How should results be correlated to existing quality metrics?
- What decision thresholds are meaningful for production?
These questions are often application-specific and need to be addressed by the organisation implementing the testing method.
Components Available for Developers
While Zimmer & Peacock does not currently offer a dedicated, off-the-shelf potato glucose testing solution, we do provide the key building blocks required for organisations interested in developing and evaluating such an application.
Glucose Sensors
Our Generation 1 glucose sensors provide a straightforward route to electrochemical glucose measurement:
https://shop.zimmerpeacock.com/en-gb/products/glucose-generation-1
These sensors can be used to explore glucose measurement in a wide range of sample types and matrices.
SenseItAll Platform
For organisations looking for a simple measurement platform, our SenseItAll instrument provides portable electrochemical measurement capability:
https://shop.zimmerpeacock.com/en-gb/products/senseitall-sia-generation-4-device-only
The platform enables rapid testing and data collection and can be used alongside our glucose sensors for application development and evaluation.
Developer Kits
For those wishing to investigate glucose sensing in more depth, we also offer developer-focused solutions that include sensors, electronics, software, and supporting materials:
https://zimmerpeacock.com/blog/getting-started-with-zimmer-peacocks-unique-glucose-sensor-technology
These kits are particularly useful for teams looking to establish sample preparation workflows, evaluate measurement performance, and determine whether glucose sensing can deliver value within their quality control processes.
The Importance of Sampling
One of the most important considerations in potato glucose testing is representative sampling.
Large potato deliveries can exhibit natural variation due to factors such as:
- Variety
- Growing conditions
- Storage conditions
- Seasonal effects
- Distribution of sugars within a batch
Consequently, developing a robust sampling and sample preparation protocol is often just as important as selecting the measurement technology itself.
An Opportunity for Innovation
We believe potato glucose testing remains an interesting application area for electrochemical sensing. While we do not currently offer a dedicated turnkey solution for this market, we are interested in organisations looking to investigate and develop the application further.
For customers wishing to explore the opportunity, Zimmer & Peacock can provide the underlying sensing technology, measurement platforms, and development tools needed to begin evaluating glucose measurement in potato samples.
The sensor may be only one part of the solution, but it is often an excellent place to start.
Useful Links
- Glucose Sensors: https://shop.zimmerpeacock.com/en-gb/products/glucose-generation-1
- SenseItAll Platform: https://shop.zimmerpeacock.com/en-gb/products/senseitall-sia-generation-4-device-only
- Glucose Developer Kit: https://zimmerpeacock.com/blog/getting-started-with-zimmer-peacocks-unique-glucose-sensor-technology
- FoodSense Technology: https://www.foodsensetechnology.com/
