TY  - JOUR 
T1  - Application of fractional factorial design to levan production by Zymomonas mobilis
JO  - Brazilian Journal of Microbiology
A1  - Melo, I.R.
A1  - Pimentel, M.F.
A1  - Lopes, C.E.
A1  - Calazans, G.M.T.
SN  - 1517-8382
UL  - 10.1590/S1517-83822007000100010
VL  - 38 
Y1  - 2007
PB  - Brasil 
ER  -