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Measuring the pH of fruits and vegetables and similar solid samples is a major challenge. Forced penetration into the sample using a conventional sensor, can result in scratches occurring on the sensor membrane and under extreme cases, may result in irreparable damage to the sensor. In addition, the presence of a ceramic junction increases the chances of junction clogging due to the entry of particulate matter. This would also result in minimum or no interaction between the sample and the reference electrolyte. Leading to inconsistency in readings along with a reduced lifetime of the sensor. Therefore, a specialized sensor is a must for pH measurements of fruits and vegetables.
METTLER TOLEDO's InLab Solids Pro-ISM is a specialized sensor for measuring the pH of fruits and vegetables with good accuracy and precision. The sensor has a spear shaped tip made of toughened glass that allows direct insertion into solid samples like fruits and vegetables and is resistant to breakage. The low maintenance solid XEROLYT®EXTRA polymer reference system offers two benefits: it has a clog-free open junction which eliminates the risk of protein fouling; and the sensor interacts with the sample through diffusing ions, eliminating the difficulties associated with immiscibility of the aqueous reference electrolyte with the sample. The specialized design and overall sensor technology of the InLab Solids Pro-ISM ensures direct sample measurement of fruits and vegetables, which is critical for ensuring reliability and consistency in maintaining quality while processing these foods .
To learn more benefits of choosing the right sensor, download the application note for measuring the pH of fruits and vegetables.
The following section covers some 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 used by various processing and canning industries. The analysis includes pH determination in a whole, fresh cut, frozen, or canned fruit or vegetable.
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.
