<p> ROUMANIAN BIOTECHNOLOGICAL LETTERS</p><p>- an international journal-</p><p>Volume 7 No. 1 January-February 2002</p><p>CONTENTS</p><p>ANTON CIUCU - Progress and Perspectives in Biosensors for Environmental Monitoring...... 537</p><p>ANA IONIŢĂ, M. MOSCOVICI, AURORA DRĂGOLICI, MIHAELA EREMIA, CĂTĂLINA BUCĂ, RADU ALBULESCU, IOANA PAVEL, MIHAELA CLAUDIA VAMANU - Lipase Production in Discontinuous Operation System Using a Candida lipolytica Strain...... 547</p><p>NATALIA CUCU - An Epigenetic Study of Bacterial NPTII Gene Expression in Agrobacterium Tumefaciens and A. Rhizogenes Mediated Potato Transformants...... 553</p><p>T. ŢOLEA, I. Gh. TĂNASE, IULIA GABRIELA DAVID, MIHAELA BULEANDRĂ, G. L. RADU - Some Similarities Between the Cell Membrane and Artificial Ion-Selective Membranes...... 561</p><p>A.VAMANU, GH. CÂMPEANU, O. POPA, E. VAMANU, GHINEA STELUŢA, DIACONU LUCIA, DOBROVOLSKI DOINA – Studies on Obtaining a Probiotic Product Based on Mixed Microbian Biomass...... 569</p><p>R. V. MALBAŠA, E. S. LONČAR, LJ. A. KOLAROV - Sucrose and Inulin Balance During Tea Fungus Fermentation...... 573</p><p>ANGELA MĂRCULESCU, CAMELIA SAND, C.H. BARBU, DANA BOBIŢ, DANIELA HANGANU - Possibilities of Influencing the Biosynthesis and Accumulation of the Active Principles in Chrysanthemum balsamita L Species...... 577</p><p>TATIANA VASSU, DIANA SMARANDACHE, ILEANA STOICA, ELENA SASARMAN, D. FOLOGEA, F. MUSAT, ORTANSA CSUTAK, ANA – MARIA NOHIT, OANA IFTIME, RALUCA GHERASIM - Biochemical and Genetic Characterization of Lactobacillus Plantarum cmgb – 1 Strain Used as Probiotic...... 585</p><p>Diary of Events...... 599</p><p>Other Informations...... 602</p><p>Roum. Biotechnol. Lett., Vol. 7, No. 6, 959-974 (2002) 1061 ROUMANIAN BIOTECHNOLOGICAL LETTERS</p><p>- an international journal-</p><p>Volume 7 No. 2 March-April 2002</p><p>CONTENTS</p><p>I. G. DAVID, M. DIACONU, G. L. RADU, V. DAVID - Investigation of the Some Electron Transfer Bioprocesses by Voltammetric Techniques...... 603</p><p>A. CIUCU, C. CIUCU, R. P. BALDWIN- Organic Phase Potentiometric Biosensor for Detection of Pesticides...... 625</p><p>S. FLESCHIN, M. SCRIPCARIU, A.A.BUNACIU-A Dynamic Kinetic Model of the Artificial Activated Sludge Process...... 631</p><p>E. IORGA, N. BELC, A. STANCOV, GH. CAMPEANU Improvement of Falling Number on Romanian Wheat Flours...... 635</p><p>A. A. BUNACIU, S. FLESCHIN, H. Y. ABOUL – ENEIN-Analysis Improvement of Drugs Using Modern Methods...... 647</p><p>L. VLĂDESCU, I. BADEA, D. MOJA - Determination of Vitamin H1 by the Potentiometric Titration...... 655</p><p>M. SCRIPCARIU, S. FLESCHIN,V. MAGEARU - Determination of Michaelis Constants for - Lactamase Reaction by Spectrophotometric Methods...... 661</p><p>A. CIUCU, C. CIUCU - Organic Phase Amperometric Biosensor for Detection of Pesticides...... 667</p><p>M. SCRIPCARIU, S. FLESCHIN, A. A. BUNACIU, V. MAGEARU - Analytical Measurements in Metabolic Changes of Bacterial Medium...... 677</p><p>I. CAPLANUS - Electrical Properties of Some New l-Asparagic Derivatives in Thin-Films...... 681</p><p>Diary of Events...... 685</p><p>38 Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) ROUMANIAN BIOTECHNOLOGICAL LETTERS - an international journal-</p><p>Volume 7 No. 3 May-June 2002</p><p>CONTENTS</p><p>Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 39 A. CIUCU - Bioelectrochemical Methods For Environmental Monitoring...... 691</p><p>S. S. FILIPOVIĆ, M. D. RISTIĆ, M. B. SAKAČ - Technology of Corn Steep Application in Animal Mashes and their Quality...... 705</p><p>V. RUDIC, N. POPOVA, A. CRIVOVA, S. BOORTSEVA, I. RASTIMESHINA - Biosynthesis of Lipoxygenase, Lipids and its Fatty Acid Composition of Actinomycetes and Yeast...... 711</p><p>C. P. CORNEA, I. LUPESCU, I. VĂTAFU, T. CARAIANI, V. G. SĂVOIU, GH. CÂMPEANU, I. GREBENIŞAN, GH. P. NEGULESCU, D. CONSTANTINESCU - Production of L-Asparaginase II by Recombinant Escherichia Coli Cells...... 717</p><p>D. DINU, I. F. DUMITRU, M. T. NECHIFOR - Alcohol Dehydrogenase Activity in Carassius carassius White Skeletal Muscle...... 723</p><p>M. D. RISTIĆ, S. S. FILIPOVIĆ, M. L. J. SAKAČ - Liquid Protein Feedstuff from Freshwater fish by-products as a Component of Animal Feed...... 729</p><p>AL. MANOLIU, Z. OLTEANU, L. OPRICA, M. M. ZAMFIRACHE, D. CREANGA - Petroleum Ferrofluid Influence on Cellulase Specific Activity in Chaetomium globosum ...... 737</p><p>R. MATEESCU, A. POP, C. P. CORNEA, I. GREBENISAN, GH. CAMPEANU - Microbial Enzymes-Lectins Interactions: Applications for Glycoproteins Purification...... 745</p><p>D. DINU, I. F. DUMITRU, M. T. NECHIFOR - Isolation and Characterization of Two Cathepsins from Muscle of Carassius auratus gibelio ...... 753</p><p>F. RĂDOI, M. KISHIDA, N. POMOHACI, GH.CÂMPEANU, H. KAWASAKI - Quantitatively Calorimetric Characterization of Olygalacturonase - Producing Mutants Isolated from Saccharomyces cerevisiae Wine Strains...... 759</p><p>L. TUDOR, I. ŢOGOE, L. ENACHE, B. GEORGESCU - UV Influence Over Vibrio Bacterial Species...... 767</p><p>G. NEGOIANU-TENEA, A. CALIN, N. CUCU - Genetic Modified Medicinal Plants. I. Agrobacterium tumefaciens Mediated Reporter gus Gene Transfer and Expression in Atropa belladonna Plants...... 773</p><p>Diary of Events...... 779</p><p>ROUMANIAN BIOTECHNOLOGICAL LETTERS</p><p>- an international journal-</p><p>Volume 7 No. 4 July-August 2002</p><p>CONTENTS</p><p>40 Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) V. I. MANZATU, MIRELA IONITA-MANZATU, P. U. GIACOMONI, G. REIN, GH. CIOCA, J. GUBERNICK, HARVEY GEDEON - Aqueous Solutions Exposed to Electric and Magnetic Fields: Spectroscopic and Biochemical Analysis...... 783</p><p>CÂMPEANU GH., VAMANU A., POPA O., DUMITRU I. F., SĂSĂRMAN ELENA, VASSU TATIANA, VAMANU E., CÂMPEANU S., CÂMPEANU CARMEN, CORNEA PETRUTA - Biotechnological studies concerning the obtaining of biomass with probiotic role from yeasts and bacteria ...... 795</p><p>POPOV-RALJIĆ J., DŽINIĆ N. , KELEMEN-MAŠIĆ Đ., MANDIĆ A., PAVLOVIĆ A., SIKIMIĆ V. - Color, Texture and Sensory Characteristics of Chicken Breasts Influenced by Citric Acid Addition to the Feed ...... 803</p><p>G. DROCHIOIU, DELIA GREBINISAN, M. GREBINISAN, VIRGINIA SAIZ - Copper Mobilization by the Proteins at Various pH Values ...... 809</p><p>CORNELIU ONISCU, ANCA-IRINA GALACTION, DAN CAŞCAVAL - Modeling of Mixing in Stirred Bioreactors - 3. Mixing Time for Aerated Simulated Broths...... 817</p><p>MIHAELA UZURU, GHEORGHE CAMPEANU - Improvement proccesing tehnology of obtaining the current and raspberry natural juices and nectar...... 829</p><p>RALUCA FULEA - Enamel matrix derivative - a new approach in periodontal regeneration...... 837</p><p>ANTON CIUCU, CRISTIAN CIUCU - Determination of 2-Thiouracyl in Complex Samples by Liquid Chromatography with Electrochemical Detection ...... 847</p><p>D. FOLOGEA, ORTANSA CSUTAK, TATIANA VASSU, RALUCA GHERASIM, ILEANA STOICA, ELENA SASARMAN, DIANA SMARANDACHE, ANA-MARIA NOHIT, OANA IFTIME - Field Inversion Gel Electrophoresis of Large DNA Molecules Extracted from a Saccharomyces cerevisiae Strain ...... 855</p><p>CARMEN ELENA GEORGESCU, N. SKAUG, I. PATRASCU - Cross Infection in Dentistry ...... 861</p><p>NATALIA CUCU, GABRIELA NEGOIANU-TENEA, L. GAVRILA - Genetically modified medicinal plants - II. Transfer and expression of a marker kanamycine resistance gene in Atropa belladonna plants ...... 869</p><p>DIARY OF EVENTS ...... 875</p><p>ROUMANIAN BIOTECHNOLOGICAL LETTERS</p><p>- an international journal-</p><p>Volume 7 No. 5 September-October 2002</p><p>Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 41 CONTENTS</p><p>MARINA T. NECHIFOR, I. F. DUMITRU, DIANA DINU - Heat Shock Proteins ...... 877</p><p>R.V. MALBAŠA, E. S. LONČAR, L. J. A. KOLAROV - L-Lactic, L-Ascorbic, Total and Volatile Acids Contents in Dietetic Kombucha Beverage...... 891</p><p>GHEORGHE DUCA, CORNELIU ONISCU, ALIONA MEREUŢA CORNELIU COJOCARU, MARIA GONŢA - Mathematical Modelling and Optimization of Synthesis Process of Dihydroxyfumarate Acid Sodium Salt...... 897</p><p>ORTANSA CSUTAK, D. FOLOGEA, TATIANA VASSU, RALUCA GHERASIM, ILEANA STOICA, DIANA SMARANDACHE, ELENA SASARMAN, ANA-MARIA NOHIT, OANA IFTIME - Electrophoretic Karyotyping of Some Yeast Strains Isolated from Oil-Polluted Soils ...... 905</p><p>IOAN AL. CREANGĂ, ANA ANDREEA ARTENI, CODRIN MOCĂNAŞU, D.E. CREANGĂ, D. MIHĂILESCU - Gamma Radiations Effects on Catalase and Assimilatory Pigments in False Acacia Seedlings Grown in Forestry Nursery ...... 911</p><p>DAN CASCAVAL, CORNELIU ONISCU, ANCA-IRINA GALACTION - Separation of 6- Aminopenicillanic Acid by Reactive Extraction ...... 917</p><p>OANA ADRIANA JINGA, OVIDIU OPREA, DAN JINGA, LAURA BANCU, MAGDA DINCULESCU - Complex compounds with thioxanthene drugs ...... 925</p><p>CORNELIU ONISCU, ALIONA MEREUŢA, DAN CAŞCAVAL, GHEORGHE DUCA - Selective Separation of Organic Oxyacids from Aqueous Phase by Reactive Extraction ...... 933</p><p>DAN CASCAVAL, CORNELIU ONISCU, ANCA-IRINA GALACTION - Modelling of Selective Separation of Mixture Obtained by Penicillin G Enzymatic Hydrolysis ...... 941</p><p>Diary of Events...... 949</p><p>Instructions to Authors ...... 951</p><p>ROUMANIAN BIOTECHNOLOGICAL LETTERS</p><p>- an international journal-</p><p>Volume 7 No. 6 November-December 2002</p><p>42 Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) CONTENTS</p><p>A. CIUCU, R. P. BALDWIN - Electrochemical Detection in Capillary Electrophoresis...... 959</p><p>SIMONA PÎRVUŢOIU, ESTERA DEY, S. BHAND, A. CIUCU, V. MAGEARU, B. DANIELSSON - Application of the Enzyme Thermistor for Determination of Mercury and Other Heavy Metals Using Free and Immobilised Alcohol Oxidase...... 975</p><p>ANISOARA CIMPEAN, OTILIA ZARNESCU, LUCIA MOLDOVAN, CLAUDIA NICOLAE, MARINELA FLAMANZEANU - In vitro Evaluation of Biosynthetic Activity of the Human Osteoarthritic Chondrocytes Embedded in Collagen Gel...... 987</p><p>LUCIA MOLDOVAN, ANISOARA CAMPEAN, OTILIA ZARNESCU, MARINELA FLAMANZEANU, CLAUDIA NICOLAE, DANA DUMITRESCU - Matrix Metalloproteases Involved in Injured Corneal Tissue Remodelling ...... 995</p><p>ENUTA IORGA, NASTASIA BELC, A. STANCOV, GH. CAMPEANU - The improvement of low proteolitic activity on Romanian Wheat Flours ...... 1003</p><p>C. ONISCU, C. COJOCARU, ALIONA MEREUTA, D. CASACVAL, GH. DUCA, M. MACOVEANU - Mathematical Modelling and Optimization of Tartaric Acid Separation Process from Aqueous Phase by Reactive Extraction...... 1023</p><p>C. VOINEA, A. CIUCU, C. CIUCU, N. VOICULEŢ - Voltammetric Methods for Determination of Some Anticancer Drugs...... 1031</p><p>ENUTA IORGA, GH. CAMPEANU - Improvement of Falling Number on Romanian Wheat Flours (II)...... 1041</p><p>Diary of Events...... 1055</p><p>Note for Bibliographical Abreviation...... 1057</p><p>Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 43</p>