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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fraser BrothFraser Broth Fraser Broth Base is a liquid medium used for the selective enrichment of Listeria spp. This broth was first described by Fraser and Sperber, and is utilized with a Ferric Ammonium Citrate supplement for the rapid detection of Listeria from food and environmental samples. Tryptose, Beef Extract, and Yeast Extract provide nutrients like amino acids, peptides, carbohydrates, and vitamins for bacterial growth. Esculin is the main energy
Fraser Broth
Fraser Broth Base is a liquid medium used for the selective enrichment of Listeria spp. This broth was first described by Fraser and Sperber, and is utilized with a Ferric Ammonium Citrate supplement for the rapid detection of Listeria from food and environmental samples. Tryptose, Beef Extract, and Yeast Extract provide nutrients like amino acids, peptides, carbohydrates, and vitamins for bacterial growth. Esculin is the main energy source. Sodium Chloride provides essential electrolytes and maintains osmotic equilibrium. Disodium Phosphate and Monopotassium Phosphate act as pH buffers. Lithium Chloride, Nalidixic Acid, and Acriflavine are selective agents for Listeria growth. All members of the Listeria spp. hydrolyze Esculin to 6,7-dihydroxycoumarine. This compound reacts with Ferric Ammonium Citrate, thus resulting in the blackening of the medium. There is a choice of 3 sizes - 500g, 2kg, and 10kg.
PREPARATION: Mix 55 grams of the medium in one liter of purified water until evenly dispersed. Distribute and autoclave at 121°C for 15 minutes. Cool to room temperature. Aseptically add 10mL of Fraser Broth Supplement.
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4.7 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Great, easy to chew toy!
Color: Orange - Maple Wood
Nice durable chew toy. My English Bulldog loves chewing the ends as well as the middle and the design is easy for him to hold with his paws as he chews
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
★★★★★ 5
Durable even with aggressive chewer
Color: Red - Bacon
This one is actually lasting a long time! It’s not his favorite but he still plays with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 5
Great product
Color: Multicolor, Color: Multicolor
I have three aggressive, chewing dogs that absolutely love these bones. I've had them for a couple of months and they have yet to break them or damage them. Lots of chewing left.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Great for aggressive chewers!
Color: Orange - Maple Wood, Color: Orange - Maple Wood
Great for aggressive chewers!! My grand-dog loves it. It is slightly heavy, perfect for him. It definitely cleans his teeth. He plays with it all the time.
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Reviewed in the United States on April 6, 2026
★★★★★ 3
My dog didn’t like it
Color: Orange - Maple Wood
Dog showed no interest at all
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
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