Lactic Bacteria Differential HiVeg™ AgarFor differentiation of homofermentative and heterofermentative lactic acid bacteria. It is also used for differentiation of homofermentative Lactobacilli and heterofermentative Streptococci. Heterofermentative lactic acid bacteria produce CO2, lactic acid, acetic acid, ethanol and mannitol and is indicated by yellow colour formation. Heterofermentative lactic acid bacteria induce lesser acidification and thus vary in the colour formation by the indicator in the medium. This medium is prepared by replacing animal peptones with vegetable defined peptones to avoid BSE/TSE/GMO risk.
- Appearance of powder: bluish grey coloured, homogeneous, free flowing powder
- Gelling: firm, comparable with 1.5% agar gel of MV1087
- Colour and clarity: blue coloured, clear to slightly opalescent gel forms in petri plates, clear solution in tubes
- Reaction of 3.56% w/v of MV1087 or 2.05% w/v of MV1086 aqueous solution is pH 7.0 ± 0.2 at 25°C
- Cultural characteristics observed after an incubation at 35-37°C for 18 -48 hours