Analytical and bioluminescence-based non-invasive quality assessment of differentially grown strawberry ( Duch. 'Asia') during household refrigeration storage.

Strawberry is a typical spring fruit, for which consumer demand is particularly high; however, information is scarce on the comparison of quality traits of strawberries of local and imported origin during household refrigeration storage. That is why we sought to answer the question of to what extent the quality of strawberries changes during 5 days of household refrigeration storage. The choice of methods was focused on fast and at the same time informative analytical methods: pH, total antioxidant capacity, and lipid oxidation. Furthermore, a non-invasive imaging technique: ultra-weak bioluminescence measurement was carried out along with the determination of fruit morphological (weight, height, width, and color) and analytical (antioxidant capacity and lipid oxidation) traits. The data indicate that the longer strawberries are cultivated in the same plantation, the smaller their fruit weight and the lower their fruit quality become. In addition, the results cast light on a controversial fact: despite the fact that the sample from the store had the finest appearance, as determined, its antioxidant capacity was the lowest for the duration of home refrigeration storage, indicating the lowest nutritional value.This was validated by the lipid oxidation levels, which were defined by the amount of malondialdehyde as well as by the rate of ultra-weak bioluminescence. The research underlines the exceptional value of local fruits over importand provides valuable information to customers, encouraging them to purchase strawberries from local farms in order to not only support the local economy but also to adopt a more health-conscious attitude. In addition, ultra-weak bioluminescence testing offers a non-invasive method for assessing fruit quality.