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Measuring the pH of solid samples, such as fruits and vegetables, presents a significant challenge. When using a conventional sensor, forcibly penetrating the sample can cause scratches on the sensor membrane and, in extreme cases, irreparable damage. Additionally, a ceramic junction increases the risk of clogging due to the entry of particulate matter, leading to minimal or no interaction between the sample and the reference electrolyte. This can result in inconsistent readings and a reduced sensor lifespan. Therefore, specialized sensors are necessary for accurate pH measurements of fruits and vegetables.
The InLab Solids Pro-ISM from METTLER TOLEDO is a specialized sensor designed for the accurate pH measurement of fruits and vegetables. This sensor has a spear-shaped tip made of toughened glass, enabling direct insertion into solid samples without the risk of breakage. The low-maintenance solid XEROLYT®EXTRA polymer reference system offers two key benefits: it has a clog-free open junction that eliminates the risk of protein fouling, and it interacts with the sample through diffusing ions, which removes difficulties associated with the immiscibility of the aqueous reference electrolyte with the sample. The specialized design and overall sensor technology of the InLab Solids Pro-ISM ensure direct sample measurement of fruits and vegetables, which is crucial for maintaining quality and consistency during food processing. If you want to learn more about the benefits of choosing the right sensor, you can download the application note for measuring the pH of fruits and vegetables.
The following section covers more information about the pH levels of fruits and vegetables and the importance of pH measurement.
Where is the pH of fruits and vegetables measured?
The pH measurement of fruits and vegetables is important for various processing and canning industries. This analysis determines the pH of whole, fresh-cut, frozen, or canned fruits or vegetables.
Why is measuring the pH of fruits and vegetables important?
The freshness of fruits and vegetables indicates their maximum nutritional benefit. The pH levels help confirm the shelf life and freshness of these products. Based on the above information (i.e., the amount of acid present in the fruits and vegetables) suitable preservation techniques are carried out. To learn more details about samples, choosing the right sensor, and adopting good measuring practices, download the application note by clicking the button above for the pH measurement of fruits and vegetables.
