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. 2020 Mar 23;17(6):2121. doi: 10.3390/ijerph17062121

Figure 2.

Figure 2

As (a) and Ni (b) concentration in growth substrate (white bars), and corresponding HI prepupae (gray bars) and frass (black bars). E: control substrate 100% coffee silverskin; As, Bs, Cs, and Ds: substrates enriched with 5%, 10%, 20%, and 25% of Schizochytrium sp., respectively; Ai, Bi, Ci, and Di: substrates enriched with 5%, 10%, 20%, and 25% of Isochrysis sp., respectively. Each bar represents the mean ± standard deviation (n = 9). * indicates statistically significant differences (p < 0.05) within the same matrix with respect to control group E.