1. Plasmid maintenance and gene expression of a recombinant culture under aerobic and anaerobic conditions

   • Gerard J. Tolentino
   • Ka-Yiu San

   OriginalPaper Pages: 373 - 376

2. Effect of alkaline medium on the production and excretion of B-lactamase byEscherichia coli

   • George Georgiou
   • Terry Palumbo
   • Michael L. Shuler

   OriginalPaper Pages: 377 - 382

3. Stable-light producingEscherichia coli

   • Matti Korpela
   • Matti Karp

   OriginalPaper Pages: 383 - 388

4. Improved stability of the continuous production of acetone-butanol by Clostridium acetobutylicum in a two-stage process

   • C. Godin
   • J. M. Engasser

   OriginalPaper Pages: 389 - 392

5. Improvement of operational stapility of yeast lipase by chemical treatment

   • Masaya Kawase
   • Atsuo Tanaka

   OriginalPaper Pages: 393 - 396

6. Lipase catalysis: Factors governing transesterification

   • H. S. Bevinakatti
   • A. A. Banerji

   BriefCommunication Pages: 397 - 398

7. Reduction of nitrate byPseudomonas putrefaciens entrapped in composite agar layer/microporous membrane structures

   • D. Lemoine
   • T. Jouenne
   • G. A. Junter

   OriginalPaper Pages: 399 - 402

8. Polyethylene glycol-modified papain catalyzes peptide bond formation in benzene

   • H. Lee
   • K. Takahashi
   • Y. Inada

   OriginalPaper Pages: 403 - 407

9. Meetings calendar

   Events Pages: I - II

10. Courses for biotechnology

    Events Pages: IV - IV

11. Adsorption ofCatharanthus roseus cells on various support particles

    • F. Kargi
    • I. Freidel

    OriginalPaper Pages: 409 - 414

12. Characterization of the polysaccharides from aLactobacillus brevis and from sugary kefir grains

    • M. Pidoux
    • J. M. Brillouet
    • B. Quemener

    OriginalPaper Pages: 415 - 420

13. Microbial production of citric acid in fixed-bed column bioreactors

    • Y. D. Hang

    OriginalPaper Pages: 421 - 426

14. Preparation of lactose free milk by fermentation using immobilizedSaccharomyces fragilis

    • B. Y. K. Rao
    • S. S. Godbole
    • S. F. D'Souza

    OriginalPaper Pages: 427 - 430

15. Microfungus-yeast mixed cultures in the degradation of amylaceous wastes. I: Interactions affecting amylolytic activity

    • Ma I. G. Siso
    • M. A. Murado
    • Ma.P. González

    OriginalPaper Pages: 431 - 436

16. pH influence on ethanol production and retained biomass in a passively immobilizedZymomonas mobilis system

    • F. Borrego
    • J. M. Obón
    • J. L. Iborra

    OriginalPaper Pages: 437 - 442

17. Cotton yarn and fabric finishing wastewater treatment in upflow anaerobic filter

    • Nikos Athanasopoulos
    • Theodore Karadimitris

    OriginalPaper Pages: 443 - 444