Determination of Dissolved Oxygen Levels to Guarantee the Quality of Natural Juices

Dissolved oxygen meters are equipment in charge of calculating the amounts of oxygen in substances, using predominantly sensors, such as electrochemical and optical. These tests are performed inside the laboratory where a thin, penetrable film gas collects the elements of the water sensor. In this sense, oxygen passes through and is reduced, creating a current that is measured for the concentration of oxygen. In addition, the fluorescence loss is measured, where the luminophore that is related to the film is fanned by the light of a blue LED that transmits red light and the oxygen in the sample turns off the exaltation.

In this case, the amounts of oxygen to measure the levels in fruit juices, conversion is important, because the acid corrodes easily, causing loss of vitamin function. In addition, with this loss, the pollutants may not be altered and survive sterilization causing deterioration in the juices.

That is why, by means of the dissolved oxygen meters, they determine each of the existing parameters in the face of the processes of control of the shelf life of the fruit juices they possess.

Methods for Measuring Dissolved Oxygen Levels in Fruits

To measure the dissolved oxygen levels in fruits and ensure the quality of the products, deaeration processes should be studied to remove the dissolved amounts of oxygen before pasteurization, since during the treatment the air acts as a thermal resistance attracting part of the heat and minimizing the efficiency. Therefore, the pressure of the chamber is adjusted to obtain the desired temperature that penetrates the fruit juice and is the boiling point at that pressure.

The vapors are then removed but pass through the condenser, causing the aromas to evaporate along with the oxygen, and fall by gravity and immediately guarantee the organoleptic quality. Thus, when the oxygen concentration is higher, the amount of light emitted is lower. And as a consequence, to determine the oxygen levels, the sensor of the meter is placed in the sample, and after a few minutes, it shows the final results expressed in milligrams for each liter of dissolution

Importance of Dissolved Oxygen Meters for the Final Product

Thanks to the dissolved oxygen meters, it is able to capture in an important way the oxygen levels that affect the quality parameters of the juices during storage, such as vitamin C, color and aroma, causing oxidation in an irreversible way when oxygen is present.

For this reason, dissolved oxygen meters are used to reach an end product of quality and efficient determination, by means of optical sensors equipped with pH where only about 30 seconds is taken without attending maintenance, because if the sensor measures oxygen, and the cover needs to be replaced, the meter will issue a warning indicating that it should be changed.

Dissolved Oxygen Meters Brand Kalstein

We at Kalstein offer you the best equipment that is ideal for any laboratory. They are made with the best technology on the market. We have at your disposal the Dissolved Oxygen Meters belonging to the YR series, it has a professional design and functions such as the Range of 0.0 to 20.0mg / L, resolution of 0.1 ml / L, accuracy of ± 0.2 mg / L. In addition to the alarm limit that is automatically displayed when the reading exceeds the specified range. As well as the calibration report showing the date, time, calibration point, etc. In addition, it has many other attractive features that can be appreciated in our catalogs HERE