The headline “fruits and vegetables diminished in their nutritional quality” appeared in recent years in the media. The claimed quality loss was supposedly related to changes in agricultural practice. The comparison of contents of nine minerals and eleven vitamins of the five most important locally produced fruits as published in three different food composition databases suggested that hardly any changes occurred during the last 20 to 40 years. An apparent significant reduction was indicated for magnesium (-3%) and increases were found for folic acid (168%) as well as vitamin C (19%). However, these changes may be related to anomalies of sampling or analyses. Fruit production has undergone many changes in the last four to five decades. Though no detrimental effects on nutritional quality of fruits could be deduced. In modern diet fruits continue to provide adequate quantities of minerals and vitamins as in the past.
Plants and microorganisms can perceive and respond to sound waves. In a review of the literature, Agroscope analysed various publications on this topic. The studies show that sound can lead to positive effects on physiology in the form of improved growth, development and disease resistance.
The war in Ukraine, dry spells and droughts followed by heavy rainfall and flooding are major challenges for our food systems. But the problems that they bring to light are nothing new – and solutions are already to hand.
Biogenic amines in foods represent a health risk. Researchers from Agroscope and INRAE investigated the formation of these undesirable substances in raclette cheeses by the bacterium Morganella morganii.