Case Studies 17.10.2015

Case Study Arla Food Deutschland

Shelf-life tests on milk and dairy products: Top-quality dairy products

Requirements:

  • Shelf-life tests on milk and dairy products
  • Studies on product stability and packaging quality
  • Programming options for various cycles
  • Homogeneous temperature conditions across test specimens
  • Rapid temperature changes
  • Simulations of various climate zones using light/humidity
     

BINDER solution:

  • KB cooling incubator with compressor technology for safe, reproducible incubation, even at high ambient temperatures
  • MK 240 dynamic climate chamber for packaging tests under dynamic conditions
  • KBF LQC constant climate chamber with light and humidity for demanding stability testing
  • KBW 720 growth chamber with homogeneous light distribution and constant temperature conditions across test specimens

Arla Foods a.m.b.a. is a global dairy group and cooperative of dairy farmers from seven European countries. The group is the fifth largest dairy company in the world in terms of the volume of milk it processes, not to mention the world's biggest supplier of organic dairy products.


Dairy products under control

To assure the high quality of the products, the various dairy products undergo extensive quality testing procedures in the company's own food sensor technology department. “Reproducibility, reliability, and repeatability are all key considerations when it comes to applying and performing our methods. With this in mind, it is also essential to maintain the highest levels of accuracy to ensure processes can be repeated at any time,” explains Bettina Krämer, Senior Sensory Specialist at Arla's Consumer Central Europe (CCE) business unit.

 

Shelf-life test or accelerated aging test


The simulation chambers are used for applications including stability and shelf-life tests on fresh milk and dairy products, and accelerated shelf-life tests (ASLT) on longlife products. As part of these testing processes, the laboratory uses both a KB cooling incubator with compressor  technology and a KBW growth chamber with light from BINDER. In comparison to a shelf-life test, which simulates real-time storage conditions, an accelerated shelf-life test looks at stability and shelf-life un-der conditions including increased tempe-rature for a shortened period of time.  Packaging tests are also carried out in the simulation chambers in line with consu-mer behavior and distribution conditions.

To ensure maximum quality of the packa-ging materials, comprehensive tests are carried out in MK dynamic climate cham-bers, which involve rapid changes in tem-perature and other dynamic conditions. To this end, the laboratory operates ac-cording to special standards such as DIN 10955 Sensory analysis – Testing of packaging materials and packages for foodstuffs, or DIN EN 1230 Paper and board intended to come into contact with foodstuffs – Sensory analysis – Part 1: Odour and Part 2: Off flavour (taint).

Packaging on the test bench

In order to ensure the maximum quality of packaging materials, extensive tests are carried out in MK series climatic chambers under dynamic conditions and with rapid temperature changes. The laboratory works according to special standards such as DIN 10955 Sensory testing - Testing of packaging materials and packaging for foodstuffs or DIN EN 1230 Paper and board intended to come into contact with foodstuffs - Sensory analysis - Part 1: Odor and Part 2: Flavor transfer.

Shelf-life testing with exposure to light


Even certain areas of the light spectrum can affect product shelf-life. And this is precisely where KBF LQC constant climate chambers – with their unique lighting concept – come into play. The most im-portant features are high temperature ac-curacy and homogeneous light distribution across the entire usable space, which is achieved with the patented diffuser in the illumination cassettes. The constant clima-te chamber with light dose measurement has special, patented, spherical light sen-sors for real measurements at sample level. The purpose – and advantage – of this application to create standardized, reproducible conditions. “It is so important, not to mention extremely useful, to have the flexibility to program various different cycles – particularly in our line of work,” explains Bettina Krämer. “The range of temperature levels, humidity control, and automatic illumination shutdown mean the simulation chambers can be used in a wide variety of different applications to meet a whole host of customer requirements. This allows us to analyze the quality and stability of our products at every stage of the value chain,” Bettina Krämer concludes.

Reproducibility, reliability, and repeatability are all key considerations when it comes to applying and performing our methods...

Bettina Krämer

Senior Sensory Specialist

Advantages

  • Reprocucibiltiy
  • Fast and precise humidification
  • Various programms
  • Homogeneous light distribution
  • Precise climate conditions
     

Application

  • Pharmaceutical industry
  • Food and beverage
  • Cosmetic industry
  • Basic research

 

Download Case Study