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Title: Factors Affecting Resveratrol Content in Strawberries

item Wang, Shiow
item Wang, Chien
item Chen, Pei

Submitted to: HortScience
Publication Type: Abstract Only
Publication Acceptance Date: 5/16/2008
Publication Date: 7/21/2008
Citation: Wang, S.Y., Chen, C., Wang, C.Y., Chen, P. 2008. Factors Affecting Resveratrol Content in Strawberries. HortScience. 43(4):1230.2008

Interpretive Summary:

Technical Abstract: This study investigated the occurrence of resveratrol in Fragaria x ananassa Duchesne and the effect of preharvest conditions on resveratrol content. Both cis- and trans- resveratrol were detected in strawberry achenes (seeds) and pulp (receptacle tissue). Resveratrol was identified by LC-MS. Resveratrol content was found to be higher in achenes than in fruit pulp. The levels of resveratrol were affected by genotype variations, fruit maturation, cultural practices and environmental conditions. High growing temperature (25 and 30 oC) or enriched CO2 in the atmosphere significantly enhanced resveratrol content of strawberries. Advancing maturation also increased resveratrol content. The mature pulp and achenes contained higher amount of resveratrol than the immature fruit. Adding compost as a soil supplement or preharvest application of methyl jasmonate (MJ) also significantly enhanced the level of resveratrol in strawberry fruit. Among the plants grown in hill plasticulture, fruit of Ovation (B28), Mohawwk, Earliglow and B35 had higher amount of resveratrol than fruit of other genotypes. Ovation contained the highest amount of resveratrol among those grown in matted row, whereas Latestar contained the least. Ten out of fourteen tested genotypes (all except Allstar, Delmarvel, Northeaster and MEUS 8) had a higher amount of resveratrol when grown in hill plasticulture compared to in matted row.