the answer i would like to give. there are many biochemical tests for detection of various types of bacteria.
1. carbohydrate utilization tests (sugar test). - lactose , sucrose , mannitol , maltose , xylose and dextrose.
2. imvic test.
it includes indole test , methyl red test , voges proskuer test , citrate utilization test.
3. nitrate reduction test.
4. urease test
5. triple sugar iron test.
6. lead acetate test.
7. mannitol motility test
8. O-F (oxidation - fermentation) test
9. aminoacid degradation test
we can detect enterobacteriaecae group & other group of bacilli according to their charactristics by comparing with standard table.