keto-D-fructose 6-phosphate + phosphate = acetyl phosphate + D-erythrose 4-phosphate + H2O
keto-d-fructose 6-phosphate + phosphate = acetyl phosphate + d-erythrose 4-phosphate + h2o
"fructose-6-phosphate phosphoketolase"
"fructose-6-phosphate phosphoketolase"