Scientists crack the secret behind strawberries' rich flavor and nutrition

A team of researchers from Freiberg University of Technology (TU Bergakademie Freiberg) and Serbia has uncovered key details about what gives strawberries their taste and nutritional benefits. Their study, led by Dr. Jan Zuber, reveals that most important biomarkers are found in the fruit’s red skin. The findings could help farmers and breeders choose better strawberry varieties for consumers. The research involved analysing 25 new strawberry cultivars using ultra-high-resolution mass spectrometry. This advanced technique allowed the team to detect tiny differences in biomarkers—down to the sixth decimal place in mass. Among the compounds identified, pelargonidin-3-O-malonyglucoside, an antioxidant, stood out in the strawberry skin.

Other key biomarkers included organic acids like citric acid and sugars such as glucose. These molecules play a major role in flavour and nutritional quality. The project, funded by the German Academic Exchange Service (DAAD), aimed to improve the selection of strawberry varieties for commercial growing. The team’s findings were published in the journals *Analytical Science* and *Plants*. Their work provides a scientific basis for predicting how consumers will respond to new strawberry types.

The study highlights the importance of the strawberry’s red skin in determining both taste and health benefits. Growers can now use these biomarkers to develop more flavourful and nutrient-rich varieties. The research also sets a foundation for further improvements in strawberry cultivation.