HiMedia Laboratories M1529-5KG Soybean Casein Digest Medium with 0.5% Soya Lecithin, 5 kg Go to amazon.com Related posts Top 10 best lecithin soya beans FeatureSuspend 35.0 grams in 1000 ml distilled waterHeat if necessary to dissolve the medium completelyCream to Yellow homogeneous free flowing powder DescriptionSoybean casein digest medium with 0.5 percent soya Lecithin is used for sanitary examination of surfaces.