Volume 11 No. 6 November – December, 2006

ROMANIAN BIOTECHNOLOGICAL LETTERS

– an international journal –

CONTENTS

1.	IOAN BONTAŞEffects of the polyphenolic extract over bacterial proteins biosynthesis on methanol	……………	2949
2.	BOGIĆ MILIČIĆ, ĐORĐE KUZMANOVIĆ, DUŠICA DELIĆ, OLIVERA STAJKOVIĆ, DRAGANA JOŠIĆNitrogen fixing activity, plasmid profiles and protein patterns of Bradyrhizobium japonicum strains	……………	2957
3.	EVELINA GHERGHINA, GABRIELA LUTAZinc quantitative estimation in tuberous roots of sweet potato following hydromineral and phitohormonal treatments applied for the purpose of modification of the metabolism of biocompound accumulation	……………	2965
4.	BOGIĆ MILIČIĆ, ĐORĐE KUZMANOVIĆ, NATAŠA RASULIĆ, DRAGANA JOŠIĆNitrogen fixing activity, plasmid profiles and intrinsic antibiotic resistance of Rhizobium          galegae strains	……………	2971
5.	MARIANA BEZDADEA, MILITINA BOURCEANU, DANIELA ZAVASTINThe permeation of protein solution at ultrafiltration through indigenous polyurethane membranes	……………	2979
6.	MARIJANA SAKAČ, SLAVKO FILIPOVIĆ, MARIJA ŠKRINJAR, SLOBODAN DAKOVIĆ, MILUTIN RISTIĆ, ŠANDOR KORMANJOŠ, IVANA SEDEJThe Effect of Extruding on the Quality of the Enriched Corn Meal	……………	2989
7.	BOGIĆ MILIČIĆ, DUŠICA DELIĆ, OLIVERA STAJKOVIĆ, NATAŠA RASULIĆ, ĐORĐE KUZMANOVIĆ, DRAGANA JOŠIĆEffects of heavy metals on rhizobial growth	……………	2995
8.	OBRADOVIĆ S., ADAMOVIĆ M.,VUKAŠINOVIĆ M., JOVANOVIĆ R., LEVIC J.The application effects of natural zeolite in feed and water on production results of  Oncorhynchus Mykiss ( Walbaum)	……………	3005
9.	LILIANA GÎTIN, MAJA HABULIN, ŽELJKO KNEZ, TRAIAN HOPULELEThermodynamic parameters for the enzymatic epoxidation of sunflower oil at atmospheric pressure with enzyme incubated at 20 MPa in SC CO2	……………	3015
10.	LILIANA GÎTIN, MAJA HABULIN, ŽELJKO KNEZ, TRAIAN HOPULELEApproximation of the thermodynamic parameters for the sunflower seed oil epoxidation reaction with enzyme treated under atmospheric pressure	……………	3021
11.	Call for papers	……………	3027
12.	Instructions for Authors	……………	3029

Cover: The Bucharest University Building