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Aseptic Packaging Testing

CHEMetrics® self-filling reagent ampoules provide quality control managers in the aseptic food and beverage packaging industry with simple, accurate measurements of hydrogen peroxide.

Hydrogen Peroxide Usage

Aseptic packaging materials must be sterilised before Extended Shelf-Life (ESL) and Ultra High Temperature (UHT) treated food or beverages are packed. This ensures that the packaged products will have a shelf life of over six months. Packaging material and machinery may be sterilised with a hydrogen peroxide solution before the packing process. A solution of 30-35% (w/v) hydrogen peroxide is typically used, which is reduced from the packaging material using pressure rollers or heat to less than 0.5 ppm (w/v) according to FDA guidelines (21 CFR 178.1005).

Case Study

One of the leading milk processing plants in North America has selected the CHEMetrics K-5543 Hydrogen Peroxide Vacu-vials® ampoules and the V-2000 Multi-Parameter Photometer to ensure compliance with this critical residual concentration limit in its high-speed production environment. The plant operates its several production lines in a 24/7 operation with three shifts per day, and performs the testing process every 30 minutes.

In evaluating available test methods, the plant required:

The CHEMetrics K-5543 Vacu-vials test system met those requirements. The system employs Vacu-vials reagent ampoules and the V-2000 photometer.

Ease of Use

Operator training is reduced by more than 50% compared to alternative hydrogen peroxide tests because of the intuitive operation of the V-2000 Photometer and the easy-to-use Vacu-vials ampoules. The CHEMetrics system virtually eliminates false positive results due to operator error. Plant management and quality control personnel have peace of mind knowing that the packaging process is uninterrupted, their products are safely packaged, and they are fully compliant with local and federal requirements and regulations.

Each ampoule contains a precisely measured dose of ferric thiocyanate reagent. When the tapered tip of the ampoule is snapped beneath the surface of a sample, the vacuum in the ampoule aspirates the correct volume of sample to mix with the colour-forming reagent. Hydrogen peroxide oxidises ferrous iron to the ferric state, resulting in the formation of a red thiocyanate complex which is read by the CHEMetrics V-2000 photometer. Test results are achieved within one minute.

Aseptic Packaging Test Kits

CHEMetrics self-filling ampoules have become the industry standard for disinfectant testing within the aseptic packaging industry. They are available in instrumental or visual formats. They are available not only for hydrogen peroxide but also other disinfectants such as peracetic acid and ozone.

Note: Additional ranges are available for each analyte.

An optional Vacu-vials Snapper can be used in conjunction with the K-5543 Hydrogen Peroxide Vacu-vials Test Kit to further simplify test procedures and reduce testing times, to allow the analyst to draw the sample into the ampoule without having to remove the sample from the aseptic packaging (see above video).

General Aseptic Packaging Applications

Packaging operators routinely monitor residuals using CHEMetrics self-filling ampoules on aseptic packaging lines that process:

  • Fruit juices
  • Fruit desserts
  • Milk
  • Wine
  • Yogurt
  • Pudding
  • Vegetables
  • other Extended Shelf-Life (ESL) products

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