Earlier information led us to coloration as one of the markers for powerful compounds (anthocyanins) that have shown positive effects on cardio vascular disease, cancer and can boost cognitive function. Further research has shown that you can enhance compounds in plants by exposing them to different wavelengths of light. We noted the effect of blue LED lights had on the tested vegetables.
We attempted to see if we could duplicate these results on our simple microgreen system here. Again, the last blog highlighted growing out our upland cress microgreens so we built a grow bench that provided our blue LED lighting to grow out our microgreens. The photos here show the results of growing out our cress for a six week period and using the blue lighting for the last two weeks on the tray on the right side. Notice the enhanced purplish color of the right tray. I do believe now that a final finishing grow for a week or so on our standard growing crops should enhance the nutritional compounds available in our microgreens.