Mycobacterium avium subsp. paratuberculosis (MAP), cause of paratuberculosis in cattle and other animals, is meant to be suspicious for being involved in Crohn’s disease, an inflammatory bowel disease of humans. As the bacterium is able to partially survive the pasteurization of milk and the process of cheese ripening, it is important to know the presence of living MAP in Swiss raw milk. In the current study, 232 bulk milk samples from different parts of Switzerland were analysed for the presence of living MAP by cultural method. As MAP was not able to be detected in any sample, one can conclude, that Swiss raw milk is not massively and widespread contaminated with MAP. However, a final risk assessment can only be performed, if studies are present using a reference method for MAP detection which is still needed to be developed.
Metschnikowia pulcherrima is a naturally occurring yeast with applications in agriculture, the food industry and biotechnology. Agroscope is investigating this yeast in particular with regard to biocontrol applications in plant protection.
Soya-, cereal-, seed- or nut-based plant drinks are consumed increasingly frequently as milk substitutes. Agroscope researchers have studied the macro- and micronutrients in these drinks and have identified major differences between the plant drinks themselves as well as in comparison with milk.
Cheese varieties from Switzerland are characterised according to various criteria. Agroscope analysed the free volatile carboxylic acids in ten cheese varieties and demonstrated that the latter are suitable for characterisation and differentiation.