1. Editorial

   • J. D. Bu'Lock

   EditorialNotes Pages: I - II

2. Meetings calendar 1986

   Events Pages: III - IV

3. IgG production kinetics in serum free media

   • John P. Tharakan
   • Pao C. Chau

   OriginalPaper Pages: 529 - 534

4. Plasmid stability during continuous culture in aSaccharomyces cerevisiae double mutant transformed by a plasmid carrying a eukaryotic gene

   • Magda Marquet
   • Sami Alouani
   • Stephen W. Brown

   OriginalPaper Pages: 535 - 540

5. Production of xylonic acid byPseudomonas fragi

   • J. Buchert
   • L. Viikari
   • P. Markkanen

   OriginalPaper Pages: 541 - 546

6. Retinyl esters synthesis by polyethylene glycol-modified lipase in benzene

   • Ayako Ajima
   • Katsunobu Takahashi
   • Yuji Inada

   OriginalPaper Pages: 547 - 552

7. Ultrafiltration as concentration step in hyaluronate lyase production

   • Bautista J.
   • Chico E.
   • Machado A.

   OriginalPaper Pages: 553 - 556

8. Experiences with a new type of microcarrier

   • R. Schulz
   • H. Krafff
   • J. Lehmann

   OriginalPaper Pages: 557 - 560

9. Evidence of oxygen limitation in a hollow fibre reactor with immobilized E. coli

   • S. L. Paterson
   • A. G. Fane
   • P. L. R. Rogers

   OriginalPaper Pages: 561 - 564

10. Membrane enclosed alginate beads containingGluconobacter cells and molecular dispersed catalase

    • W. Hartmeier
    • Angelika Heinrichs

    OriginalPaper Pages: 565 - 570

11. Rapid detection of microbial hydantoinase on solid medium

    • André Morin
    • Werner Hummel
    • Maria-Regina Kula

    OriginalPaper Pages: 571 - 576

12. Production of uricase by different strains of Streptomyces

    • K. Demnerová
    • B. Králová
    • V. Adámek

    BriefCommunication Pages: 577 - 578

13. Limitations of the Congo-Red staining techniques for the detection of cellulolytic activities

    • P. Sharma
    • S. Pajni
    • D. K. Dube

    OriginalPaper Pages: 579 - 580

14. A versatile assay for total cellulase activity using U-[¹⁴C]-labelled bacterial cellulose

    • Patricia du Preez
    • A Kistner

    OriginalPaper Pages: 581 - 586

15. Temperature and pH optima of enzyme activities produced by cellulolytic thermophilic fungi in batch and solid-state cultures

    • W. Grajek

    OriginalPaper Pages: 587 - 590

16. Measurement of yeast invertase during alcoholic fermentation

    • O. Naudin
    • M. J. Boudarel
    • A. Ramirez

    BriefCommunication Pages: 591 - 592

17. Ethanol production by 107 strains of yeasts on 5, 10, and 20% lactose

    • R. J. Bothast
    • C. P. Kurtzman
    • P. J. Slininger

    OriginalPaper Pages: 593 - 596

18. Fermentation of cellobiose and wood sugars to ethanol byCandida shehatae andPichia stipitis

    • Sarad Parekh
    • Morris Wayman

    OriginalPaper Pages: 597 - 600

19. Removal of NH₃-N from domestic waste water by fungi

    • Yasmeen Akhtar
    • A. Ghaffar

    OriginalPaper Pages: 601 - 604