Figure 5From: Echium acanthocarpum hairy root cultures, a suitable system for polyunsaturated fatty acid studies and productionDouble Bond Index. Double Bond Indexes (DBI) of each culture were calculated as [(% 18:1) +2*(% 18:2) +3*(% 18:3) +4*(18:4)]/100. Each value is the mean ± standard deviation of three replicates. The different sampling point days are specified in the Method section.Back to article page