ANTON CIUCU - Progress and Perspectives in Biosensors for Environmental Monitoring 537

ROUMANIAN BIOTECHNOLOGICAL LETTERS

- an international journal-

Volume 7 No. 1 January-February 2002

CONTENTS

ANTON CIUCU - Progress and Perspectives in Biosensors for Environmental Monitoring...... 537

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

NATALIA CUCU - An Epigenetic Study of Bacterial NPTII Gene Expression in Agrobacterium Tumefaciens and A. Rhizogenes Mediated Potato Transformants...... 553

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

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

R. V. MALBAŠA, E. S. LONČAR, LJ. A. KOLAROV - Sucrose and Inulin Balance During Tea Fungus Fermentation...... 573

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

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

Diary of Events...... 599

Other Informations...... 602

Roum. Biotechnol. Lett., Vol. 7, No. 6, 959-974 (2002) 1061 ROUMANIAN BIOTECHNOLOGICAL LETTERS

Volume 7 No. 2 March-April 2002

CONTENTS

I. G. DAVID, M. DIACONU, G. L. RADU, V. DAVID - Investigation of the Some Electron Transfer Bioprocesses by Voltammetric Techniques...... 603

A. CIUCU, C. CIUCU, R. P. BALDWIN- Organic Phase Potentiometric Biosensor for Detection of Pesticides...... 625

S. FLESCHIN, M. SCRIPCARIU, A.A.BUNACIU-A Dynamic Kinetic Model of the Artificial Activated Sludge Process...... 631

E. IORGA, N. BELC, A. STANCOV, GH. CAMPEANU Improvement of Falling Number on Romanian Wheat Flours...... 635

A. A. BUNACIU, S. FLESCHIN, H. Y. ABOUL – ENEIN-Analysis Improvement of Drugs Using Modern Methods...... 647

L. VLĂDESCU, I. BADEA, D. MOJA - Determination of Vitamin H1 by the Potentiometric Titration...... 655

M. SCRIPCARIU, S. FLESCHIN,V. MAGEARU - Determination of Michaelis Constants for - Lactamase Reaction by Spectrophotometric Methods...... 661

A. CIUCU, C. CIUCU - Organic Phase Amperometric Biosensor for Detection of Pesticides...... 667

M. SCRIPCARIU, S. FLESCHIN, A. A. BUNACIU, V. MAGEARU - Analytical Measurements in Metabolic Changes of Bacterial Medium...... 677

I. CAPLANUS - Electrical Properties of Some New l-Asparagic Derivatives in Thin-Films...... 681

38 Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) ROUMANIAN BIOTECHNOLOGICAL LETTERS - an international journal-

Volume 7 No. 3 May-June 2002

CONTENTS

Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 39 A. CIUCU - Bioelectrochemical Methods For Environmental Monitoring...... 691

S. S. FILIPOVIĆ, M. D. RISTIĆ, M. B. SAKAČ - Technology of Corn Steep Application in Animal Mashes and their Quality...... 705

V. RUDIC, N. POPOVA, A. CRIVOVA, S. BOORTSEVA, I. RASTIMESHINA - Biosynthesis of Lipoxygenase, Lipids and its Fatty Acid Composition of Actinomycetes and Yeast...... 711

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

D. DINU, I. F. DUMITRU, M. T. NECHIFOR - Alcohol Dehydrogenase Activity in Carassius carassius White Skeletal Muscle...... 723

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

AL. MANOLIU, Z. OLTEANU, L. OPRICA, M. M. ZAMFIRACHE, D. CREANGA - Petroleum Ferrofluid Influence on Cellulase Specific Activity in Chaetomium globosum ...... 737

R. MATEESCU, A. POP, C. P. CORNEA, I. GREBENISAN, GH. CAMPEANU - Microbial Enzymes-Lectins Interactions: Applications for Glycoproteins Purification...... 745

D. DINU, I. F. DUMITRU, M. T. NECHIFOR - Isolation and Characterization of Two Cathepsins from Muscle of Carassius auratus gibelio ...... 753

F. RĂDOI, M. KISHIDA, N. POMOHACI, GH.CÂMPEANU, H. KAWASAKI - Quantitatively Calorimetric Characterization of Olygalacturonase - Producing Mutants Isolated from Saccharomyces cerevisiae Wine Strains...... 759

L. TUDOR, I. ŢOGOE, L. ENACHE, B. GEORGESCU - UV Influence Over Vibrio Bacterial Species...... 767

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

Volume 7 No. 4 July-August 2002

CONTENTS

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

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

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

G. DROCHIOIU, DELIA GREBINISAN, M. GREBINISAN, VIRGINIA SAIZ - Copper Mobilization by the Proteins at Various pH Values ...... 809

CORNELIU ONISCU, ANCA-IRINA GALACTION, DAN CAŞCAVAL - Modeling of Mixing in Stirred Bioreactors - 3. Mixing Time for Aerated Simulated Broths...... 817

MIHAELA UZURU, GHEORGHE CAMPEANU - Improvement proccesing tehnology of obtaining the current and raspberry natural juices and nectar...... 829

RALUCA FULEA - Enamel matrix derivative - a new approach in periodontal regeneration...... 837

ANTON CIUCU, CRISTIAN CIUCU - Determination of 2-Thiouracyl in Complex Samples by Liquid Chromatography with Electrochemical Detection ...... 847

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

CARMEN ELENA GEORGESCU, N. SKAUG, I. PATRASCU - Cross Infection in Dentistry ...... 861

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

DIARY OF EVENTS ...... 875

Volume 7 No. 5 September-October 2002

Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 41 CONTENTS

MARINA T. NECHIFOR, I. F. DUMITRU, DIANA DINU - Heat Shock Proteins ...... 877

R.V. MALBAŠA, E. S. LONČAR, L. J. A. KOLAROV - L-Lactic, L-Ascorbic, Total and Volatile Acids Contents in Dietetic Kombucha Beverage...... 891

GHEORGHE DUCA, CORNELIU ONISCU, ALIONA MEREUŢA CORNELIU COJOCARU, MARIA GONŢA - Mathematical Modelling and Optimization of Synthesis Process of Dihydroxyfumarate Acid Sodium Salt...... 897

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

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

DAN CASCAVAL, CORNELIU ONISCU, ANCA-IRINA GALACTION - Separation of 6- Aminopenicillanic Acid by Reactive Extraction ...... 917

OANA ADRIANA JINGA, OVIDIU OPREA, DAN JINGA, LAURA BANCU, MAGDA DINCULESCU - Complex compounds with thioxanthene drugs ...... 925

CORNELIU ONISCU, ALIONA MEREUŢA, DAN CAŞCAVAL, GHEORGHE DUCA - Selective Separation of Organic Oxyacids from Aqueous Phase by Reactive Extraction ...... 933

DAN CASCAVAL, CORNELIU ONISCU, ANCA-IRINA GALACTION - Modelling of Selective Separation of Mixture Obtained by Penicillin G Enzymatic Hydrolysis ...... 941

Instructions to Authors ...... 951

Volume 7 No. 6 November-December 2002

42 Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) CONTENTS

A. CIUCU, R. P. BALDWIN - Electrochemical Detection in Capillary Electrophoresis...... 959

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

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

LUCIA MOLDOVAN, ANISOARA CAMPEAN, OTILIA ZARNESCU, MARINELA FLAMANZEANU, CLAUDIA NICOLAE, DANA DUMITRESCU - Matrix Metalloproteases Involved in Injured Corneal Tissue Remodelling ...... 995

ENUTA IORGA, NASTASIA BELC, A. STANCOV, GH. CAMPEANU - The improvement of low proteolitic activity on Romanian Wheat Flours ...... 1003

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

C. VOINEA, A. CIUCU, C. CIUCU, N. VOICULEŢ - Voltammetric Methods for Determination of Some Anticancer Drugs...... 1031

ENUTA IORGA, GH. CAMPEANU - Improvement of Falling Number on Romanian Wheat Flours (II)...... 1041

Note for Bibliographical Abreviation...... 1057

Roum. Biotechnol. Lett., Vol. 7, No. 6, 1061-1066 (2002) 43