Fruktkvalitet og bioaktive komponenter med antioksidantaktivitet i tomater dyrket på gård: Komparativ studie av økologisk og konvensjonelt produksjonssystem

| Type artikkel: Publisert studie
Gjentatte feltforsøk ved tre gårder i det sørlige og sentrale Taiwan ble etablert i oktober 2004 og 2005 for å sammenlikne kvalitets- og næringsparametere i tomater dyrket i økologisk og konvensjonelt dyrkingssystem i tropisk og subtropisk miljø.

Forfattere:

Juroszek P, Lumpkin HM, Yang RY, Ledesma DR, Ma CH.

Forskningsinstitusjon:

Crop and Ecosystem Management Unit, Nutrition Unit, and Statistics Specialist, AVRDC-The World Vegetable Center, Yi-Min Liao 60, Shanhua, Taiwan.

Publiseringssted:

Journal of agricultural and food chemistry

Årstall:

2009

Fruit quality and bioactive compounds with antioxidant activity of tomatoes grown on-farm: comparison of organic and conventional management systems

 

Fremgangsmåte

Replicated field trials at three matched farm pairs in southern and central Taiwan were established in October 2004 and 2005 to compare fruit quality and nutritional parameters of tomatoes grown on-farm under organic versus conventional management systems in tropical and subtropical environments.

Two processing tomato varieties were evaluated using a randomized complete block design at each of the farms. Aggregation of farms by type (organic vs conventional) across two years resulted in no significant differences between organic and conventional farming systems for all tomato fruit parameters measured, including quality (pH, soluble solids, acidity, and color), content of bioactive compounds with antioxidant activity (beta-carotene, lycopene, ascorbic acid, and total phenolics), and antioxidant activity.

 

Funn

This study indicated no consistent effect of the farming system on tomato fruit parameters. Farm management skills combined with site-specific effects contributed to high lycopene levels, and the choice of variety significantly influenced the content of bioactive compounds, particularly ascorbic acid and total phenolics.

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