Additives are compounds added to a product to perform a specific task. They can function as conservatives, acidity regulators or to contribute to human and animal welfare. MasterLab is proficient in analyzing a broad range of organic acids, medicinal additions, enzyme activities and colorants & pigments.

Organic acids and alcohols

Organic acids is a general term describing molecules containing a carboxylic acid group.  They can be used as a substitute for antibiotics to prevent Salmonella infection or as acidity regulator in food and beverages. Some of these acids can be produced by bacteria during fermentation and thus are available from a natural source. Liquid feeds are produced primarily from already processed products, rest products and spills which are generally acidic. Controlling the fermentation process is important because other cultures of bacteria can produce different organic acids. The composition and amount of organic acids can influence the effectiveness of the final product.


Animals can get ill just like humans, special medicated animal feeds or premixes are then be used to treat the animals. Most medicines are banned, for those still allowed in special animal feeds their dosage needs to be tested. A too high dosage can lead to unwanted side-effects which can be harmful for the animal.


Enzymes are proteins that have a specific function. Certain types can break down starch into glucose while others break down protein into smaller peptides. Some enzymes are added to animal feed to aid the animal’s digestive system and improve the performance of a feed. Other enzymes like phytases are added to break down phytic acid which can have anti-nutritional values. An extra benefit is the release of non-available phosphate which is essential for animal growth. Furthermore enzymes can be used in industrial processes.

Colorants and pigments

Coloring agents are added to premixes to get a certain color in animal products. To get a yellow/orange egg-yolk, a chicken needs to consume a source of carotenoids. Salmon get theirred/pinkish color by eating krill. Farm grown salmon are fed fish feeds and need to get these pigments as additive in the feed. Colorants and pigments are also used to give certain food products their distinct color like cheese, butter and margarine. These colorants and pigments can be naturally available or added by a premix/concentrate.