Volume 9 No. 4 July – August, 2004 ROMANIAN BIOTECHNOLOGICAL LETTERS – an international journal – CONTENTS 1.MARIANA-CARMEN BALOTESCU, LIA MARA PETRACHEAdherence of lactobacilli to intestinal mucosa and their antagonistic activity against pathogens ……………17372.Gabriela BahrimAgricultural biowaste as resources for fodder yeast additives development ……………17513.Gabriela Bahrim, F. SopticăCorrelative effect of solid media on yellow pigmentogenesis at an Epicoccum sp. strain …………… 17574.ANA CAPATANAThe cytogenetic study of different sunflower’s genotypes …………… 17635.VAMANU EMANUEL, POPA OVIDIU, DRUGULESCU MANUEL, VAMANU ADRIANProbiotic Product Based on Pollen and Honey ……………17716.Oana Craciunescu, Lucia Moldovan, Wanda Buzgariu, Otilia Zarnescu, Bojin, G.L. RaduPreparation of an Elastin–Collagen Artificial Matrix. Evaluation of Its Structure and Biocompatibility ……………17857.JELENA DODIĆ, DUŠANKA PEJIN, STEVAN POPOV, SINIŠA DODIĆ, JASNA MASTILOVIĆ, VLADIMIR PUŠKAŠ, JOVANKA POPOV-RALJIĆEvaluation of fermentative activities of different strains of Saccharomyces cerevisiae in bread dough ……………17938.D. Letca, C. Hemmerling, M. Walter, K. BucholzComparison of cell disruption methods for a recombinant Escherichia coli strain …………… 17999.Call for papers ……………180910.Instructions for Authors …………… 1811 Cover: The Bucharest University Building