Tryptic Soy Broth (TSB), 1 mL, 13 × 100 mm Polycarbonate Tube, Screw Cap, 10/Pk

This product provides 10 sterile tubes, each containing 1 mL of Tryptic Soy Broth (TSB). Packaged in highly durable, optical-grade polycarbonate tubes with screw caps, this small-volume format is specifically designed for small-scale enrichments, suspension preparation, and molecular biology applications.

The "Micro" Suspension:

While standard TSB tubes typically contain 5mL or 10mL, this 1 mL fill serves specialized niches:

1. Inoculum Prep: It is the perfect volume for suspending a single colony to create a dense slurry for streaking, specific gravity adjustment (McFarland standards), or PCR template preparation.

2. Dilution Blank: Ideal for small serial dilutions ($10^{-1}$) where conserving reagents and space is critical.

3. Sentinel Studies: Used for checking sterility of small medical devices or swabs where total immersion in a large volume isn't necessary.

The Polycarbonate Advantage:

The tube itself is a key feature, distinguishing it from standard glass or polystyrene disposables.

• Unbreakable: Polycarbonate is virtually shatterproof, making it safer for transport or centrifugation.

• Optical Clarity: It offers glass-like transparency, allowing for easy visual inspection of turbidity (growth) without opening the cap.

• Autoclavable: Unlike polystyrene, polycarbonate can withstand high temperatures, ensuring the tube maintains its integrity during the sterilization process.

The Medium:

Tryptic Soy Broth (also known as Soybean-Casein Digest Medium) is the "workhorse" liquid medium of the microbiology lab.

• Nutritious: A nutritious blend of enzymatic digests of casein and soybean meal provides amino acids and glucose, supporting the rapid growth of aerobic, facultative, and anaerobic bacteria (as well as fungi).

• Compliance: It meets the formulation standards of the USP and EP for sterility testing.

Common Applications:

• PCR Setup: Suspending colonies before DNA extraction.

• Antibiotic Susceptibility: Preparing bacterial suspensions for MIC testing.

• Sterility Checks: Incubating small samples (needles, fibers) to detect contamination.

• Stock Cultures: Short-term maintenance of isolates before freezing.

Key Features:

• Precision Volume: 1 mL fill prevents waste for small-scale tasks.

• Premium Material: Polycarbonate is shatterproof and optically clear.

• Secure Seal: Screw cap prevents leaking during vortexing or centrifugation.

• Universal Growth: Supports a vast range of fastidious and non-fastidious organisms.

• Format: Sterile liquid broth in 13x100mm tubes (10-pack).

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