Extended metabolism methods for increasing and extracting metabolites from algae and microorganisms

A method for producing an antimethanogenic halide compound, said method comprising the steps of:

• a) providing a haloperoxidase enzyme a bromoperoxidase, an iodoperoxidase, a chloroperoxidase, and combinations thereof;
• b) providing a reaction solution, said reaction solution comprising:
• i) formate and/or acetone;
• ii) hydrogen peroxide;
• iii) a halide;
• and
• c) contacting the peroxidase enzyme with the reaction solution for a time period sufficient to synthesize an antimethethanogenic halide compound;
• wherein the antimethanogenic halide compound is selected from the group consisting of bromoform, chloroform, iodoform, and combinations thereof

A composition comprising:

• a) an algal biomass;
• b) a reaction solution, said reaction solution comprising:
• i) a volatile fatty acid or ketone;
• ii) hydrogen peroxide;
• iii) a halide;
• and
• c) a secondary metabolite.