BioMed Research International

Research Article

Copper Enhanced Monooxygenase Activity and FT-IR Spectroscopic Characterisation of Biotransformation Products in Trichloroethylene Degrading Bacterium: Stenotrophomonas maltophilia PM102

Table 2

Interpretation of FT-IR data of TCE-treated, benzene-treated, and peptone-grown (control) PM102 biomasses. Functional groups were assigned to respective wavenumbers with reference to Coates (2000) [27].
Group frequency ( ) Functional group
Treated (TCE-induced biomass) 
 536Aliphatic bromo C–Br stretch
 874Epoxy ring
 1072Cyclic ethers C–O stretch
 1251Skeletal C–C vibrations
 1394Tertiary alcohol OH bend
 1555Carboxylic acid
 1644Amide or secondary amine NH bend
 2932Methylene stretch
 3414Hydroxy group H bonded OH stretch
Control (peptone-grown biomass) 
 527Aliphatic bromo C–Br stretch
 699Aliphatic chloro C–Cl stretch
 1112Cyclic ethers C–O stretch
 1250Skeletal C–C vibrations
 1416Vinyl C–H in plane bend
 1639Amide or secondary amine NH bend
 2947Methyl C–H asym./sym. stretch
 3421Hydroxy group H bonded OH stretch
Treated (benzene-treated biomass) 
 582Aliphatic bromo C–Br stretch
 7491,2-Disubstitution (ortho) aromatic ring
 1027Cyclohexane ring vibrations
 1250Skeletal C–C vibrations
 1446Aromatic ring stretch
 1639Amide or secondary amine NH bend
 2253Isocyanate (–N=C=O asym. stretch)
 2947Methyl C–H asym./sym. stretch
 3421Hydroxy group H bonded OH stretch