TY  - JOUR 
T1  - Application of foam column as green technology for concentration of saponins from sisal (Agave sisalana) and Juá (Ziziphus joazeiro)
JO  - Brazilian Journal of Chemical Engineering
A1  - Ribeiro, B. D.
A1  - Barreto, D. W.
A1  - Coelho, M. A. Z.
SN  - 0104-6632
UL  - 10.1590/S0104-66322013000400002
VL  - 30 
Y1  - 2013
PB  - Brasil 
ER  -