Volume 16 No. 6 (supplement) November – December, 2011

ROMANIAN BIOTECHNOLOGICAL LETTERS

– an international journal –

CONTENTS

Cover: The Bucharest University Building

1.	Introduction
2.	IRIS SARCHIZIAN, MARINELA CÎRNU, IOAN I. ARDELEAN Isolation of a heterocyts – forming Cyanobacterium and quantification of its biotechnological potential with respect to redox properties at single cell level	……………	3
3.	CARMEN MADALINA CISMASIU The adaptation of gram-negative bacteria to acidic environmental conditions with implication in heavy metals removal processes	……………	8
4.	ROMICĂ CREŢU, ŞTEFAN DIMA, GABRIELA BAHRIM Antioxidant activity evaluation of the fungal dye oil-in-water emulsions obtained by cyclic voltammetric technique	……………	19
5.	SILVANA DĂNĂILĂ-GUIDEA, PETRU NICULIŢĂ, ESOFINA RISTICI, MONA POPA, MARIAN RISTICI, FLOAREA BURNICHI, MIHAELA DRAGHICI, MIHAELA GEICU The influence of modulated red laser light on seedlings of some annual ornamental species (Dianthus caryophyllus and Petunia hybrida)	……………	34
6.	ALINE CARDOSO, LIDIANE LEMOS, MONICA FRIGHETTO, ESTELA NUNES Total phenolics extracted from the skin of fuji apple and incorporated by liposome in galenic bases: an alternative to use by-products of food industry	……………	40
7.	GEORGIANA PARFENE, VICENTIU BOGDAN HORINCAR, GABRIELA BAHRIM, LUCIA VANNINI, DAVIDE GOTTARDI, MARIA ELISABETTA GUERZONI Lipolytic activity of lipases from different strains of Yarrowia lipolytica in hydrolysed	……………	46
8.	MARIYA PETROVA, ELY ZAYOVA AND ANTONINA VITKOVA Effect of silver nitrate on in vitro root formation of Gentiana lutea	……………	53
9.	MARIA RÂPĂ, MONA ELENA POPA, PATRIZIA CINELLI, ANDREA LAZZERI, RICA BURNICHI, AMALIA MITELUT, ELENA GROSU Biodegradable alternative to plastics for agriculture application	……………	59
10.	ROSSEN GORGOROV, MARINA STANILOVA, ANTONINA VITKOVA In vitro cultivation of some endemic and rare Alchemilla species in Bulgaria	……………	65
11.	VICENTIU-BOGDAN HORINCAR1, GEORGIANA PARFENE1, GABRIELA BAHRIM1 Evaluation of bioactive compounds in extracts obtained from three romanian marine algae species	……………	71
12.	KRASIMIRA TASHEVA AND GEORGINA KOSTURKOVA Rhodiola rosea L. in vitro plants morphophysiological and cytological characteristics	……………	79
13.	SIMONE TIBOLLO, ROBERTA ZONI, ELISA MARIANI and GIULIANO EZIO SANSEBASTIANO Study on the Application of a New Method for the Viral Detection of Caliciviruses in Foodstuffs	……………	86
14.	ILZE BEITANE, INGA CIPROVICA The study of added prebiotics on b group vitamins concentration during milk fermentation	……………	92
15.	CARMEN BEJAN, EMILIA VISOIU Resveratrol biosynthesis on in vitro culture conditions in grapevine (cv. Feteasca Neagra and Cabernet Sauvignon) under the action of AlCl3 as elicitor agent	……………	97
16.	LAURA-DORINA DINU, LAURA ANGHEL, STEFANA JURCOANE Isolation of heavy metal resistant bacterial strains from the battery manufactured polluted environment	……………	102
17.	FLORIN IMBREA, STEFANA JURCOANE, BRANKO MARINKOVIC, VALERIU TABĂRĂ, PAUL PÎRŞAN, GHEORGHE DAVID, LUCIAN BOTOŞ Role of bio-physics in maize cultivation technology	……………	107
18.	AMALIA MITELUŢ, ALINA CULEŢU, MONA POPA, PETRU NICULIŢĂ Study on optimization of solid-phase microextraction and gas chromatography-mass spectrometry analysis for the volatile fraction of pastures	……………	113
19.	ALINA ALEXANDRA DOBRE, VALERIA GAGIU, NICULITA PETRU Antimicrobial activity of essential oils against food-borne bacteria evaluated by two preliminary methods	……………	119
20.	SIMONA ROTARU, FLORENTINA ISRAEL-ROMING, GHEORGHE CAMPEANU, GEORGIANA DECIU Correlation of ochratoxin A level in wine with vine environment	……………	126
21.	ANA ROȘU, SILVANA DANAILA-GUIDEA, RICUȚA DOBRINOIU, FLORIN TOMA, DOINA TEODORA ROȘU, NINA SAVA, CONSTANTIN MANOLACHE Asclepias syriaca L. – an underexploited industrial crop for energy and chemical feedstock	……………	131
22.	IRINA SMEU, MONA ELENA POPA Effect of minimally processing operations on the shelf-life and quality characteristics of romanian lettuce		139
23.	MATEI FLORENTINA, ADRIAN GAGEANU Killer profile of wine yeast strains isolated in Dealurile Bujorului vineyard		144
24.	SILVIA SIMONA GROSU-TUDOR, MEDANA ZAMFIR Isolation and characterization of lactic acid bacteria from romanian fermented vegetables		148
25.	INGA CIPROVICA, ALLA MIKELSONE The influence of ripening temperature on diversity of non-starter lactic acid bacteria in semi-hard cheeses		155