CNR research shows light management boosts vitamin B9 in leafy greens

Research conducted by the National Research Council (CNR-ISPA) in Italy demonstrates that managing light intensity during cultivation can significantly increase vitamin B9 levels in certain leafy vegetable species. The study, published in the journal Scientia Horticulturae, focused on the growth of young leaves and petioles (baby-leaf) of vegetables such as mizuna, chicory, and tatsoi.

According to researcher Francesco Serio, a 100-gram portion of mizuna and tatsoi grown using these methods can provide approximately 45% of the recommended daily folate intake for an adult, and 30% of the recommended amount during pregnancy. Vitamin B9 is essential for DNA synthesis and cell division.

In addition to increasing vitamin B9, the increased light availability resulted in a marked reduction in nitrate accumulation in the leaves. This dual effect improves the nutritional profile of the produce without compromising crop productivity, offering a sustainable strategy for modern agricultural production systems.