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Table 4 Supernatant Hg removal after aggregation and sedimentation of Hg amended culture medium with/without Yarrowia spp. cultivation

From: Mercury removal during growth of mercury tolerant and self-aggregating Yarrowia spp.

Aggregation condition Supernatant Hg removal (%)
Without yeast biomass (negative control)
 Medium containing 32 µg Hg ml−1 with NH3 alum salt 17.9 (1.0)
 Medium containing 32 µg Hg ml−1 with Na alum salt 19.6 (0.7)
 Medium containing 32 µg Hg ml−1 with K alum salt 18.1 (0.7)
With Idd1 biomass
 Culture biomass (in medium containing 32 µg Hg ml−1) without alum salt treatment 91.3 (0.7)
 Culture biomass (in medium containing 32 µg Hg ml−1) with NH3 alum salt 90.4 (0.3)
 Culture biomass (in medium containing 32 µg Hg ml−1) with Na alum salt 93.8 (0.4)
 Culture biomass (in medium containing 32 µg Hg ml−1) with K alum salt 88.9 (0.6)
With Idd2 biomass
 Culture biomass (in medium containing 32 µg Hg ml−1) without alum salt treatment 94.8 (0.3)
 Culture biomass (in medium containing 32 µg Hg ml−1) with NH3 alum salt 90.8 (0.3)
 Culture biomass (in medium containing 32 µg Hg ml−1) with Na alum salt 93.4 (0.4)
 Culture biomass (in medium containing 32 µg Hg ml−1) with K alum salt 92.2 (0.7)
  1. Values in parenthesis are standard error of mean (n = 3)