Growing Practices Can Boost Microgreens’ Nutrition

Scientists at Penn State University published two studies on ways to improve the nutrition of microgreens. The studies focused on supplementing microgreens with zinc as they are growing and exploring how differing levels of light exposure affect microgreens’ nutrient levels. Researchers found that high light intensity increased antioxidants in microgreens, such as vitamin C, flavonoids, and phenolic acids, but it also decreased some plant-defense compounds. Meanwhile, adding zinc through fertigation resulted in higher levels of specific antioxidants and more essential amino acids in the microgreens. Researchers concluded that light intensity affected the overall metabolite composition of the microgreens more than zinc levels did. This research highlights potential for the quick-growing crop to be used to improve nutrition and health, particularly in populations with a specific nutrient deficiency.
Related ATTRA blog: Microgreens: Tiny Crops, Big Profits – A Nutritional Powerhouse for Farmers and Winter Menus