Supplemental blue LED light also
stimulated antioxidant status in green vegetables: increased polyphenol (Johkan et al. 2010), vitamin C (Li et al.
2012), carotenoid (Lefsrud et al. 2008, Li and Kubota 2009) and anthocyanin contents (Stutte et al. 2009, Li and
Kubota 2009), that affected leaf coloration (Stutte et al. 2009, Mizuno et al. 2011).