Biotype No. Isolates Total No. of isolates Positive sugars
I 020, 021, 034, 040, 041, 049, 052, 062, 065, 072, 079, 067, 073, 074, 083 15 Dulicitol
II 006, 007, 027, 076, 048, 053 6 Raffinose
III 015, 019, 060, 055, 054, 082, 085 7 Rhamnose
IV 035, 050, 047, 058, 061, 076 6 Sucrose
V 010, 039, 046 6 Dulicitol and rhamnose
VI 044, 078, 088 3 Raffinose and rhamnose
VII 029, 087, 0067 3 Rhamnose and salicine
VIII 022, 066, 070 3 Rhamnose and starch
IX 013, 051, 065 3 Rhamnose and sucrose
X 003, 004, 026, 037 4 Dulicitol,raffinose and rhamnose
XI 009, 069, 079 3 Dulicitol,rhamnose and starch
XII 043, 051, 065 3 Raffinose, rhamnose and sucrose
XIII 001, 025, 080 3 Raffinose, salicine and sucrose
XIV 031, 063 2 Raffinose,starch and sucrose
XV 032, 096 2 Dulicitol, raffinose, salicine and sucrose
Table 2: Biotypes of E. coli isolates on the basis of fermentation reactions of dulcitol, raffinose, rhamnose, salicin, starch and sucrose.