INFLUENCE OF CULTIVATION TECHNIQUES ON HEALTH BENEFICIAL COMPONENTS IN STRAWBERRY

Strawberries are an efficient source for bioactive compounds.
These substances are mainly linked to polyphenols.
Phenolics are generated in the secondary metabolism which is affected, e.g., by environmental stress and, consequently, by cultivation techniques.
In this study the influence of black and white mulching foil in combination with flat, matted row, and high bed cultivation on the content of bioactive compounds was analyzed for two harvest dates.
The antioxidant capacity was measured by ORAC assay, TEAC assay, and total phenols with Folin-Ciocalteu reagent.
It was observed that the fresh fruits of the high bed cultivation contain total antioxidant capacity up to 50% higher than the fruits of the control in the bare soil.
HPLC analysis showed that only a few phenolic compounds were influenced, e.g., quercetin-3-glucoside.
The color of the polyethylene foil did not affect the total antioxidant capacity based on the fresh weight of the fruit.

Workshop on Berry Production in Changing Climate Conditions and Cultivation Systems. COST-Action 863: Euroberry Research: from Genomics to Sustainable Production, Quality and Health

M. Josuttis, E. Krüger, H. Dietrich

mulching foil, high bed, TEAC, ORAC, total phenols, total anthocyanins, antioxidant activity

https://doi.org/10.17660/ActaHortic.2009.838.34