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Description
A-1 MediumA 1 Medium A 1 Medium is used for the detection of fecal coliforms in drinking water, treated wastewater, seawater, and beverages. Enzymatic Digest of Casein provides nitrogenous sources and vitamins. Lactose and Salicin are the carbohydrate sources providing energy for bacterial growth. Sodium Chloride maintains the osmotic balance. Triton X 100 is a surfactant improving nutrient uptake by the bacteria. There is a choice of 3 sizes 500g, 2kg, and
A-1 Medium
A-1 Medium is used for the detection of fecal coliforms in drinking water, treated wastewater, seawater, and beverages. Enzymatic Digest of Casein provides nitrogenous sources and vitamins. Lactose and Salicin are the carbohydrate sources providing energy for bacterial growth. Sodium Chloride maintains the osmotic balance. Triton X-100 is a surfactant improving nutrient uptake by the bacteria. There is a choice of 3 sizes - 500g, 2kg, and 10kg.
PREPARATION: Mix 31.5 grams of the medium in one liter of purified water until evenly dispersed. Heat with repeated stirring to dissolve completely. Distribute into test tubes with Durham tubes and autoclave at 121°C for 10 minutes.
Additional Literature:
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4.6 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Great way to remove dry skin while not being abrasive
Style: Bath & Body
One side of the scrubber is a softer cloth, the other is a more abrasive cloth. There is a sponge divider between the two. This is great to use during the dry days of winter when my skin becomes dryer and more scaly. The soft side is for my face, of course. The ribbon band across the back lets me slide my hand in and get a bit more leverage and to hold on to the scrubber.
Much kinder to my skin than a loofah.
I wash the Scrubber with the towels so it is always clean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
★★★★★ 5
A nicer loofah
Style: Bath & Body
So nice! The two different sides is a plus. Soaps up easily and rinses out great. Makes for a pleasant shower everytime.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
A Self-Care Essential
Style: Bath & Body
I love these scrubbies! They’re a good size, and durable. One side is soft, and the other exfoliates. It has a little loop on top to hang it up. They are a bit pricey though.
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Reviewed in the United States on August 27, 2025
★★★★★ 5
Good quality items from thai brand
Style: Bath & Body
I am satisfied with this brand. Convenient and good quantity product.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Good for aging dry skin
Style: Bath & Body
Why did you pick this product vs others?:
I've been using this product for about a year and have found it beneficial for dry aging skin. It is abrasive enough for exfoliating yet suitable for delicate sensitive skin. I ordered the 3 pack because the price per sponge is much better than store purchase.
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Reviewed in the United States on June 21, 2025
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