ISOLATION AND PARTIAL IDENTIFICATION
OF DEXTRANASE PRODUCING BACTERIA

Untung Murdiyatmo
(Indonesian Sugar Research Institute)

Samples of soils and composts have been used as sources of microbes for isolating dextranase producing bacteria. By using a selective medium and enrichment technique, six gram positive isolates capable of producing extracellular dextranase have been found. Partial identification of these isolates show that one of them belongs to Micrococcus sp (isolate B1), and the rest belong to Streptococcus spp..(isolates B2, B3, B4 and B6). Dextranase productivity of the isolates was 182,3 ; 244,5 ; 20,5 ; 72,3 ; 13,9 and 15,7 unit/ml respectively.

Key words : Bacterial dextranase, Micrococcus, Streptococcus.



(Indonesian Sugar Research Journal Vol.XXXII (3-4) September - Desember 1996 :1 - 7)