“… carotenoid concentrations also increased significantly: that … (P<0·001); that of phytofluene was 1·8-fold higher (P<0·005); that of phytoene was 2·6-fold higher (P<0·005); …-carotene was 1·5-fold higher (P<0·01) In contrast, the α-tocopherol concentration remained nearly constant.”