Izolacija i selekcija mikroalgi za proizvodnju ulja

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Bojana R. Danilović
Jelena M. Cvetković-Rakić
Jovan Ćirić
Jelica B. Simeunović
Vlada B. Veljković
Dragiša S. Savić

Abstract

Proizvodnja biodizela privlači sve veću pažnju istraživača poslednjih godina. Trenutna komercijana proizvodnja biodizela uključuje transesterifikaciju ulja dobijenog iz uljarica. Kako imaju veliku brzinu rasta, visok sadržaj ulja, a mogu se gajiti u sredinama nepovoljnim za rast biljnih vrsta, mikroalge predstavljaju dobru alternativu za proizvodnju ulja. Pored toga, gajenje mikroalgi doprinosi i zaštiti životne sredine u smislu smanjenja sadržaja ugljen-dioksida u atmosferi. U cilju proučavanja mogućnosti gajenja mikroalgi za proiz­vodnju ulja, izvršena je izolacija i identifikacija 6 sojeva slatkovodnih mikroalgi iz stajaćih voda u okolini Leskovca. Utvrđeno je da mikroalge pripadaju rodovima Chlorococcum, Chlorella, Desmodesmus i Scenedesmus. Izolati su, zatim gajeni u laboratorijskim, kontro­lisanim uslovima uz određivanje brzine rasta, produktivnosti biomase i sadržaja ulja. Naj­veći sadržaj suve biomase utvrđen je kod sojeva Chlorococcum sp. i Desmodesmus sp.1 (1,5 g/dm3), dok se sadržaj ulja kretao u opsegu od 15,8% (Chlorococcum sp.) do 33% (Chlorella sp.). Kako je najveća produktivnost ulja utvrđena kod mikroalgi Chlorella sp. i Scenedesmus sp., ova dva izolata su najpogodnija za dalja proučavanja u cilju poboljšanja prinosa ulja i mogućnosti upotrebe u procesu proizvodnje biodizela.

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How to Cite
Danilović, B. R., Cvetković-Rakić, J. M., Ćirić, J., Simeunović, J. B., Veljković, V. B., & Savić, D. S. (2017). Izolacija i selekcija mikroalgi za proizvodnju ulja. HEMIJSKA INDUSTRIJA (Chemical Industry), 71(1), 69–74. https://doi.org/10.2298/HEMIND151127019D
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General

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