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Amtimicrobial activity of essential oil of Melissa officinalis L., Lamiaceae / Antimikrobna aktivnost etarskog ulja Melissa officinalis L., Lamiaceae
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2005)
The antimicrobial activity of the essential oil of Melissa officinal is was investigated in this paper. The essential oil was obtained by the principle of water and steam and analyzed by GC and GC-MS using FID and MSD. The ...
Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead / Fazno modelovanje dinamike rasta imobilisanih ćelija kvasca u Ca-alginatnim nosačima
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
A phase-field model was formulated to describe yeast cell growth within the Ca-alginate microbead during air-lift bioreactor cultivation. Model development was based on experimentally obtained data for intra-bead yeast ...
Analysis of different factors effects on emissions of hydrocarbons from petroleum storage tanks / Analiza uticaja različitih faktora na emisiju ugljovodonika iz skladišnih rezervoara
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
Oil refineries and petrochemical industry plants are comprised of a series of complex processes which vary according to processing design, the technology which is utilized, and a number of other factors. Crude oil can be ...
Waste management in Serbia / Upravljanje otpadom u Srbiji
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2005)
Serbia is facing a tremendous challenge with respect of development of appropriate waste management infrastructure to modern European standards. The priorities are: Stop dumping - Increase collection coverage - Move to ...
Immobilization of penicillin acylase from Escherichia coli on commercial sepabeads EC-EP carrier
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
This paper reports the covalent immobilization of penicillin G acylase from E. coli on sepabeads EC-EP, an epoxy-activated polymethacrylic carrier, and describes kinetic properties of the immobilized enzyme. The selected ...
Optimizacija postupka proizvodnje uljanih ekstrakata cveta nevena digestijom
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2002)
Stillage as by-product of alcoholic fermentation / Džibra - sekundarni proizvod alkoholne fermentacije
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
Processes of bioethanol production from sugars, starch or cellulose produce enormous amounts of stillage (about 20 dm3 per dm3 ethanol), as a by-product. Chemically, stillage is an aqueous solution of different products ...
New functionalities in cellulosic fibers developed by chemical modification / Celulozna vlakna novih funkcionalnih svojstava dobijanja hemijskim modifikovanjem
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
This paper gives an overview of the current state in the field of cellulosic fibers functionalization by chemical modification. Emphasis is placed on the selective (periodate and TEMPO oxidation) and non-selective (permanganate ...
Estimation of loading losses of petroleum products from tank trucks / Procena gubitaka isparavanja naftnih derivata prilikom pretakanja
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2007)
In this paper was analyzed the quantity of loading losses, which are the primary source of evaporative emissions from tank cars and trucks. Loading losses occur as organic vapors in "empty" cargo tanks are displaced to the ...
Imobilizacija lipaze iz candida rugosa u alginatne čestice upotrebom elektrostatičkog generatora
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2002)