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LETHEEN AGAR MODIFIED 500 grams/bottle

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Letheen Agar Modified is a modification of Letheen Broth Base. It is highly nutritious and recommended for use in the microbiological testing of cosmetics. It can be used to inactivate quarternary ammonium compounds and other preservatives when establishing the number of bacteria present in cosmetics and other materials. Beef extract, casein peptone and meat peptone provide nitrogen, vitamins, minerals and amino acids essential for growth. Yeast extract is the source of vitamins, particularly of the B-group. Glucose is the fermentable carbohydrate providing carbon and energy. Sodium chloride supplies essential electrolytes for transport and osmotic balance. Lecithin, polisorbate 80 and sodium bisulfite neutralize quaternary ammonium compounds and partially neutralize the preservative system commonly found in cosmetics. Bacteriological Agar is the solidifying agent. The medium is also used for microbiological samples from surfaces that have been treated with disinfectants.
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