LED treatments enhance lettuce phytochemicals, antioxidants

Tuesday, May 10, 2016 - 12:10 in Biology & Nature

Scientists investigated the effects of combined red (R) blue (B) LED with or without green (G) LED light and white LED light on hydroponically grown lettuce. Results showed that continuous light exposure at preharvest can effectively reduce nitrate accumulation and increase phytochemical concentrations; 24 hours continuous RB LED with G light exposure significantly enhanced free-radical scavenging activity, increased phenolic compound concentrations, decreased nitrate content, and enhanced lettuce quality.

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