Every month, only one official milk-testing result is available from between 1000 and 1200 milk producers instead of the two required. Of the missing results, one part originates from milk-collection centers where milk delivery takes place every other day and sampling is performed manually, and is therefore attributable to the time delay between sampling notification and milk delivery. Extending the maximum time allowed between sampling and commencement of the analysis from 30 to 36 hours would provide an easy and cost-effective method to solve this problem. The increase in the number of samples with results above the maximum permitted limit would be slight: In the present study, the percentage increased from 1,397 % at 30 hours to 1,468 – 2,648 % at 36 hours, representing a rise of 0,07 – 1,25 %. This can be accepted as a justifiable drawback as it would affect very few producers and only those whose milk at 30 hours contains bacterial counts close to the official limit. The overall discrimination would probably be even lower as the increased time span would not necessarily affect both monthly samples and therefore, after calculation of the monthly geometric mean as required by the public-law milk quality control, the results may well remain within the limits set.
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.