Volume 13 No. 5 (supplement) September – October, 2008 ROMANIAN BIOTECHNOLOGICAL LETTERS – an international journal – CONTENTS 1.DOVILĖ ŠINKŪNIENĖ, VITA KIRILIAUSKAITĖ, VIDA BENDIKIENĖ and BENEDIKTAS JUODKAProperties and Immobilization of Enterobacter aerogenes 13 Lipase ……………12.GABRIELA RÂPEANU, ANDREI BOLOCAN, INGE GAZI, GABRIELA BAHRIMMetabolic activity stimulation of the wine yeasts by polyphenols extracted from red grapes ……………93.TUDOR L, ŢOGOE I, ANETA POP, ELENA MITRĂNESCUThe Yersinia enterocolitica species tolerance to temperature ……………174.TUDOR I. TOGOE, ELENA MITRĂNESCU, ANETA POP, LAURA TUDORUV Influence on Yersinia enterocolitica strains ……………23 5.MARIAN BARBU, SERGIU CARAMAN, EMIL CEANGĂOptimal Control Strategy of a Biotechnological Process Using a Fuzzy Zonal Model ……………296.MARIAN BARBU, SERGIU CARAMAN, EMIL CEANGĂA Modified ASM3 Model for a Trickling Filter ……………39 7.AYKUT BARAZI AND OSMAN ERKMENSurvival of Listeria Monocytogenes in sucuk during manufacturing and storage periods at different modified atmosphere ……………49 8.ROMICĂ CREŢU, GABRIELA BAHRIM, DIMA STEFAN, MIHAELA OLTEANUEvaluation of physical and chemical characteristics of yellow colorant produced by Epicoccum nigrum MIUG 2.15 in crude extracts and emulsions ……………599.MIHAELA COTARLET (SCANTEE), GABRIELA BAHRIM, TEODOR NEGOITĂ, PETER STOUGAARDScreening of polar streptomycetes able to produce cold-active hydrolytic enzymes using common and chromogenic substrates ……………6910.C.G. BOERIUPeroxidases in food industry: crosslinking of proteins and polysaccharides to impart novel functional properties ……………8111.INGE GAZI, GABRIELA ELENA BAHRIM, RODICA DINICA, MARTINE DEMEUNYNCKIn vitro antimicrobial activity evaluation of new nitrogen heterocycles derivates from acridine ……………87 Cover: The Bucharest University Building