[1] Brunel Univ, Brunel Inst Bioengn, Uxbridge UB8 3PH, Middx, England
[2] UCL Adv Ctr Biochem Engn, Dept Biochem Engn, London WC1E 7JE, England
[3] AECS, Bridgend CF31 4XZ, Mid Glamorgan, Wales
[4] Zeneca Agrochem, Bracknell, Berks, England
[5] Univ Coll Swansea, Dept Chem, Swansea SA2 8PP, W Glam, Wales
[6] AstraZeneca, Macclesfield SK10 2NA, Cheshire, England
[7] Univ Pau, ENSGTI, F-64000 Pau, France
[8] Glaxo Wellcome, Med Res Ctr, Bioproc Unit, Stevenage, Herts, England
[9] Glaxo Wellcome Operat, Ulverston LA12 9DR, Cumbria, England
[10] Zeneca Pharmaceut, Manchester, Lancs, England