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Human activities influence the natural distribution and biogeochemical cycling of elements, thus changing the chemical environment where plants develop (Nriagu and Pacyna 1988). Among the elements which could affect plants, heavy metals are not naturally removed or degraded and therefore progressively accumulate in soil or water sediments (Bussotti et al. 1983; Hunter et al. 1987). In forest ecosystems...
Chemo-enzymatic initiation of graft copolymerization of acrylic compounds onto different technical lignosulfonates (LS) was compared to a Fenton-like system (ferrous ion, t-BHP). The enzyme tested was a phenoloxidase laccase (EC 1.10.3.2) from the white rot basidomycete Trametes versicolor. Most applied lignins were successfully grafted, resulting in a polymer yield of more than 90%. The effect of...
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