Posted in | News | New Product

Pet Food Has to Meet Strict Guidelines

Dogs represent one of the most preferred pets across the globe. The general diet of a dog should comprise a combination of carbohydrates, minerals, proteins, fats, vitamins and water.

Dog food manufacturers across the globe have been introducing products suitable for every stage of a dog’s life. Some of these products provide hypoallergenic nutrition, whereas other formulations are produced for controlling health conditions such as kidney and heart-related diseases[1].

Fig.1: Sample of dog food

Image Credit: FRITSCH GmbH.

Hence the importance of continued pet food testing for various ingredients or to even prevent contamination due to aflatoxin or salmonella. New technologies and testing methods for example are helping manufacturers and vet supply chains to keep products safe. FRITSCH Mills are perfectly suited for sample preparation prior to further testing of pet food.

​​​​​First test with the Variable Speed Rotor Mill PULVERISETTE 14 premium line

In this trial we used our Variable Speed Rotor Mill PULVERISETTE 14 premium line converted into a cutting mill in combination with our high-performance Cyclone separator and 4 mm square perforated sieve shells.

​​​​​​​

​​​​​​​Fig.2: Variable Speed Rotor Mill PULVERISETTE 14 premium line

Image Credit: FRITSCH GmbH.

Grinding parameter:

  • Feed quantity: 200 g
  • Feed Size: 10 mm
  • Grinding Time: 1.40 min
  • Final Fineness: 1 mm

​​​​We programmed the maximum speed setting of 18000 rpm and used a batch of 200 g of the dog food. The sample was fed slowly and was ground within 1:40 minutes. The grinding sound was typical during the grinding process.  

   ​​​​​​​

​​​​​​​Fig.3: Processed sample final fineness 1 mm

Image Credit: FRITSCH GmbH.

Afterwards we inspected the grinding chamber: No perforations were clogged, but it could be seen that the sample was very greasy and gradually adhered to the sieve pan holder and the collecting vessel. We packed the sample and cleaned the Variable Speed Rotor Mill PULVERISETTE 14 premium line equipment with a soft brush and hot water.

​​​​​​ ​​​​​​

​​​​​​​Fig.4: Sample output sieve shell 4 mm

Image Credit: FRITSCH GmbH.

Second Test with the FRITSCH Knife Mill PULVERISERTTE 11

​​​​​​​In this trial, we used our Knife Mill PULVERISETTE 11, which was equipped with a standard grinding vessel made of plastic PC and a standard knife made of stainless steel.

​​​​​​​Fig.5: Knife Mill PULVERISETTE 11

Image Credit: FRITSCH GmbH.

​​​​​​​
​​​​​​​Grinding parameter:

  • Feed quantity: 200 g
  • Feed Size: 10 mm
  • Grinding Time: 20 seconds
  • Final Fineness: < 1 mm

We programmed the grinding time into 3 steps, 2 x 5 seconds with 5000 rpm for pre-crushing and 1 x 10 seconds with 10000 rpm. 200 g of the dog food was used. After the grinding time of 20 seconds we checked the collecting vessel.   

Fig.6: View inside standard grinding vessel

Image Credit: FRITSCH GmbH.

The majority of the sample was ground much finer than the requested 1 mm. Like in our first trial, the surfaces which were in contact with the ground sample, were covered with a small amount of the grease or oil.

​​​​​​​

Fig.7: Ground dog food after 20 seconds of grinding

Image Credit: FRITSCH GmbH.

In summary: Both systems avoid sample heating and loss of analytes.

With the Variable Speed Rotor Mill PULVERISETTE 14 premium line, a precise result is achieved by the predefined sieve size.

The strong points of the Knife Mill PULVERISETTE 11 are a fast an efficient comminution of batch samples.

 

Sources and further literature

[1]  https://www.imarcgroup.com/dog-food-manufacturing-plant

Author: Dirk Peter, Laboratory Assistant, Fritsch GmbH

E-Mail: [email protected]

 

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    FRITSCH GmbH - Milling and Sizing. (2021, December 14). Pet Food Has to Meet Strict Guidelines. AZoM. Retrieved on January 22, 2022 from https://www.azom.com/news.aspx?newsID=57686.

  • MLA

    FRITSCH GmbH - Milling and Sizing. "Pet Food Has to Meet Strict Guidelines". AZoM. 22 January 2022. <https://www.azom.com/news.aspx?newsID=57686>.

  • Chicago

    FRITSCH GmbH - Milling and Sizing. "Pet Food Has to Meet Strict Guidelines". AZoM. https://www.azom.com/news.aspx?newsID=57686. (accessed January 22, 2022).

  • Harvard

    FRITSCH GmbH - Milling and Sizing. 2021. Pet Food Has to Meet Strict Guidelines. AZoM, viewed 22 January 2022, https://www.azom.com/news.aspx?newsID=57686.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Submit