Effect of LED Light in Biomass Production and Presence of Metabolites in Medicinal Plants

Over the years, a large number of plants have been used in traditional medicine. However, the production of these depends on the region, height, humidity, light, and all environmental factors. All this without forgetting that many are endemic and do not grow all year. In addition, all environmental factors influence the quantity and quality of the secondary metabolites they produce, since they are their defense mechanism against droughts, winters, microorganisms, and pests. The plant factory system consists of a closed system with all controlled conditions (nutrients, humidity, light, pest-free, etc.) to produce crops, which is why it is a viable alternative to produce species with medicinal properties since they can be produced all year round, anywhere in the world, promote the overproduction of their secondary metabolites, reduce water consumption, increase production levels, etc. However, one of the most important factors is to control the hours of light (intensity and type) to promote the production of secondary metabolites with medicinal properties. That is why the plant factory system is a viable alternative to produce biomass from medicinal plants.