details, the reader should refer to Ludwig et al. (1992a). Basically, an
enantioselective transformation of α-HCH can be investigated by determining the
enantiomeric excess (EE) either of α-HCH or of its first transformation products
throughout the experimental period.
Fig. 8.1 (upper) and Fig. 8.2 (lower): Degradation of the prochiral γ-hexachlorocyclohexane
(HCH, upper part) and the chiral α-hexachlorocyclohexane (HCH) (lower part), as well as the
respective pentachlorocyclohexene metabolites (PCCH) via dehydrochlorination (HCl elimination)
8.1 Microbial Transformation of Chiral Environmental Pollutants
109
enantioselective transformation of α-HCH can be investigated by determining the
enantiomeric excess (EE) either of α-HCH or of its first transformation products
throughout the experimental period.
Fig. 8.1 (upper) and Fig. 8.2 (lower): Degradation of the prochiral γ-hexachlorocyclohexane
(HCH, upper part) and the chiral α-hexachlorocyclohexane (HCH) (lower part), as well as the
respective pentachlorocyclohexene metabolites (PCCH) via dehydrochlorination (HCl elimination)
8.1 Microbial Transformation of Chiral Environmental Pollutants
109