Kuhne’s Fermentation Tube
Product Code : SCL-CLE-11903
The StemAids Kuhne’s Fermentation Tube is a specialized glass vessel engineered for the qualitative and quantitative study of anaerobic respiration (fermentation) in yeast and other microorganisms. Its unique "J-shaped" vertical design allows for the complete isolation of a yeast-sugar solution from atmospheric oxygen, facilitating the collection and measurement of evolved Carbon Dioxide (CO2). Manufactured to ISO 9001:2015 standards, it is a critical asset for Microbiology and Biochemistry laboratories in both University and Secondary School settings.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material |
High-clarity Borosilicate Glass 3.3 (Expansion 33) |
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Structure |
Vertical closed-top graduated tube with an integrated bulb reservoir |
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Graduation |
Permanent white enamel scale (typically 0–10ml or 0–20ml) |
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Base |
Broad, integrated glass foot for free-standing stability |
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Dimensions |
Approx. 150mm to 200mm height |
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Chemical Resistance |
High resistance to ethanol and organic acids |
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ISO Compliance |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
7017.90.10 (Laboratory Glassware) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Anaerobic Interface: Facilitates student understanding of Microbial Metabolism. By filling the vertical arm completely, learners identify how fermentation occurs in the absence of oxygen.
- Metabolic Quantification: Enables the measurement of the Fermentation Rate; learners apply the graduated scale to record the volume of CO2 gas produced over a specific time interval (ml/hr).
- Substrate Analysis: Supports the analysis of "Sugar Utilization"; students evaluate the effectiveness of different carbohydrates (Glucose vs. Sucrose vs. Starch) by comparing gas production rates.
- Biochemical Evaluation: Allows students to evaluate the presence of CO2 by introducing a small amount of Potassium Hydroxide (KOH) into the bulb; the resulting vacuum (as CO2 is absorbed) confirms the identity of the gas.
Experimental Procedure Note
For optimal demonstration, the yeast-sugar mixture should be introduced into the tube and tilted until the graduated vertical arm is entirely filled with liquid, leaving no air bubbles at the top. As fermentation progresses, the gas will collect at the apex, displacing the liquid into the bulb reservoir.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, high-impact packaging. The "J-bend" of the tube is specifically braced with shock-absorbent material to prevent fracture during maritime or air transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a standardized experiment guide for fermentation studies.
- Durability: Borosilicate 3.3 glass ensures that the tube can be safely autoclaved and cleaned with aggressive sanitizers without losing optical clarity.
Direct OEM Sourcing Advantages
Procuring the StemAids Kuhne’s Fermentation Tube directly ensures vertical manufacturing control:
- Precision Graduations: Direct oversight of the etching process ensures that the volume markings are accurate, allowing for reliable quantitative data collection across different lab groups.
- Structural Integrity: We ensure uniform glass thickness at the "bend" of the J-tube, which is the most common point of failure in lower-quality glasswork.
- Direct Factory Inventory: Guaranteed availability of standardized sets to ensure all student stations are equipped with identical apparatus for synchronized testing.
- Stable Foot Design: Direct manufacturing allows us to ensure the glass base is perfectly flat and weighted, minimizing the risk of accidental tipping during the 24-48 hour fermentation cycle.
