Toxic effects of ionic liquid 1-octyl-3-methylimidazolium tetrafluoroborate on soil enzyme activity and soil microbial community diversity

Environmental Impact of Ionic Liquids: Recent Advances in (Eco)toxicology and (Bio)degradability

“…As referred to above, ILs can cause adverse effects on soil microbial communities and soil enzymatic activities . For example, 10 mg Kg −1 of [omim][BF 4 ] influences the microbial community and the activities of urease, β‐glucosidade, acid phosphatase, and dehydrogenase …”

“…Sun et al have observed that after 40 days of contact between soil and [omim][BF 4 ]t he concentration of the IL changes by no more than 5%. [92] Ammonium-and phosphonium-based ILs also demonstrate the ability to persist on soil for long periodso ft ime. [93] The length of the alkyl side chain is am ajor factor affecting the strength of binding of the ILs to the soil surface.…”

“…As referred to above,I Ls can cause adversee ffects on soil microbial communities and soil enzymatic activities. [92,132] For example, 10 mg Kg À1 of [omim][BF 4 ]i nfluences the microbial community and the activities of urease, b-glucosidade, acid phosphatase, and dehydrogenase. [92] Besides an increasei nt he number of publications related to the effects of ILs on enzymatic activity and the mechanisms involved, new methods to implement enzymatici nhibition assays have been developed.…”

“…[92,132] For example, 10 mg Kg À1 of [omim][BF 4 ]i nfluences the microbial community and the activities of urease, b-glucosidade, acid phosphatase, and dehydrogenase. [92] Besides an increasei nt he number of publications related to the effects of ILs on enzymatic activity and the mechanisms involved, new methods to implement enzymatici nhibition assays have been developed. TheS araiva group has developed automated methods to assess the effects of ILs with different cations,a lkyl-chain lengths, and anionso nt he activity of five different enzymes.…”

Activity of dehydrogenases in clay soil exposed to quaternary ammonium salts with iodine anion

“…Also Azimova et al (2009) measured the effect of imidazolium-derived ionic liquids on the bacterial respiration rate. However, the results obtained by Sun et al (2017) revealed that dehydrogenases, as well as acid phosphatase, were not sensitive to 1-methyl-3-octylimidazolium tetrafluoroborate, while the urease activity was first stimulated and then inhibited by this ionic liquid (observed after 30-day incubation). Telesiński and Sułkowska (2016) reported that two imidazolium ionic liquids: 3-butyl-1-methylimidazolium tetrafluoroborate and 3-hexyl-1-methylimidazolium tetrafluoroborate, decreased the activity of o-diphenol oxidase, but the size of this effect depended on the dosage of ionic liquids, incubation time, and soil properties.…”