Figures index : The Effect of Hydroxycinnamic Acids on the Microbial Mineralisation of Phenanthrene in Soil : Science and Education Publishing

Figures index

International Journal of Environmental Bioremediation & Biodegradation. 2015, 3(2), 40-47 doi:10.12691/ijebb-3-2-1

Figure 1. Chemical structures of some of the hydroxycinnamic acids used in this study

Figure 2. Mineralisation of ¹⁴C–phenanthrene in fresh artificially spiked soils amended with (a) caffeic acid, (b) ferulic acid, (c) p-coumaric acid, (d) a mixture of hydroxycinnamic acids (caffeic acid, ferulic acid and p-coumaric acid at a 1:1:1 ratio) at concentrations of 50 µg kg^-1 (●), 100 µg kg^-1 (○), 200 µg kg^-1 (■) and unamended soil (□). Error bars, where visible, represent standard error of mean (n = 3)

Figure 3. Mineralisation of ¹⁴C–phenanthrene in artificially spiked soils amended with 100 µg kg^-1 (a) caffeic acid, (b) ferulic acid, (c) p-coumaric acid, (d) a mixture of hydroxycinnamic acids (caffeic acid, ferulic acid and p-coumaric acid at a 1:1:1 ratio) at 0 d (T1 [● = amended; ○ = unamended]), 16 d (T2 [ ▼= amended; = unamended]), 32 d (T3 [■ = amended; □ = unamended]) and 48 d (T4 [= amended; = unamended]) time points. Error bars, where visible, represent standard error of mean (n = 3)