Method for biotransformation of trichothecenes

A method for biotransformation of a trichothecene by contacting material contaminated with trichothecenes with an exogenous non-animal glutathione-S-transferase (GST) having substrate specificity for the epoxide ring of the trichothecene, comprising

• incubating components comprising the material, the GST, and glutathione in an aqueous solution at a pH range of 6 to 9 under conditions wherein glutathione reacts with the epoxide moiety, thereby forming an epoxide adduct, wherein:
• (i) the GST has at least 95% sequence identity with SEQ ID NO:
• 2 or SEQ ID NO:
• 4, or the GST has an amino acid sequence as defined in (i) and is encoded by a polynucleotide sequence having at least 95% sequence identity with SEQ ID NO:
• 1 or SEQ ID NO:
• 3.