Overview
Microbial culture storage tubes are critical tools in microbiology and biotechnology for preserving microbial strains. Designed to withstand ultra-low temperatures, these tubes ensure the long-term viability of bacteria, fungi, and other microorganisms. They are widely used in academic research, pharmaceutical development, and industrial processes where strain integrity is paramount. Standard tubes are made from polypropylene or similar cryogenic-resistant materials, often featuring screw caps with silicone gaskets to prevent contamination and desiccation. Their compact size (typically 1–5 mL) allows efficient storage in freezers or liquid nitrogen dewars.
Structure and Working Principle
These tubes consist of a cylindrical body, a threaded neck, and a cap with an airtight seal. The interior is sterilized to eliminate contaminants, while the material’s low thermal conductivity minimizes ice crystal formation during freezing. Some variants include beads or cryoprotectant solutions to enhance cell survival. When stored at -80°C or in liquid nitrogen (-196°C), microbial metabolism halts, preserving genetic stability. The tube’s design prevents vapor penetration and physical damage, ensuring samples remain intact for years. High-quality tubes are often DNase/RNase-free to protect sensitive genetic material.
Key Features
1. **Cryogenic Resistance**: Tubes endure extreme temperatures without cracking. Polypropylene variants remain flexible at -196°C. 2. **Sterility**: Pre-sterilized via gamma irradiation or autoclaving to prevent cross-contamination. 3. **Traceability**: Options include barcodes, writable surfaces, or color-coded caps for sample tracking. Additional features may include internal threading for secure sealing, graduated markings for volume measurement, and compatibility with automated handling systems. Industrial-grade tubes often meet ISO 13485 or FDA standards for clinical use.
Application Areas
1. **Research Laboratories**: Strain collections, genetic studies, and microbiome research. 2. **Pharmaceuticals**: Vaccine development, antibiotic production, and probiotic storage. 3. **Agriculture**: Preservation of nitrogen-fixing bacteria and biocontrol agents. In industrial settings, these tubes are used for master cell banks in biomanufacturing. Clinical labs rely on them for pathogenic strain archiving and antimicrobial resistance testing. Their role in long-term biodiversity conservation (e.g., culture repositories) is also significant.
Maintenance and Precautions
- **Storage**: Keep at consistent ultra-low temperatures; avoid frequent access to prevent thawing. - **Handling**: Use gloves and sterile techniques to maintain integrity. Thaw frozen cultures rapidly in a 37°C water bath. Avoid overfilling tubes to prevent cracking during freezing. Regularly inspect seals for wear. For liquid nitrogen storage, use vapor-phase storage to avoid tube rupture from liquid ingress. Dispose of compromised tubes via biohazard protocols.
B2B Procurement Guide
1. **Volume**: Bulk purchases (100+ units) typically reduce costs by 20–30%. 2. **Certifications**: Prioritize suppliers with ISO 9001 or GMP compliance for assured quality. 3. **Customization**: Some manufacturers offer logo printing, unique cap colors, or pre-filled cryoprotectants. Evaluate suppliers for lead times and cold-chain packaging options. For high-throughput facilities, consider racks or pre-labeled tubes to streamline workflows. Sample testing for sterility and durability is recommended before large orders.
Related Manufacturers
- 主营：高耐磨、氧化锆、球磨机、聚氨酯、碳化硅、硬质合金、真空手套箱、尼龙球磨罐、聚四氟乙烯、土壤研磨机、刚玉球磨罐、不锈钢球磨罐、不锈钢手套箱、亚克力手套箱、惰性气体手套箱
- 主营：KINTEK 瓷珠菌种保存管、压力蒸汽灭菌生物指示剂(自含式)、压力蒸汽灭菌生物指示剂(安瓿式)、KINTEK 定量质控菌株
- 主营：冷冻研磨仪、冷冻研磨机、组织研磨仪、土壤球磨仪、高通量组织研磨机、多样品组织研磨仪、多样品组织冷冻研磨机、全自动样品快速研磨仪、高通量多样品组织研磨仪
- 主营：混匀仪、混样仪、均质器、移液器、yds-35-125、jxfstprp-64、jxfstprp-24、jxfstprp-cl、生物容器、细胞破碎、整支灭菌、单道手动、tissuelyser-48、漩涡混合器、细胞粉碎机、磁珠磁力架、迷你双垂直、恒温振荡器、电泳仪电源、漩涡混合仪、迷你离心机、净化工作台、掌上离心机、组织研磨机、冷冻研磨机
- 主营：菌种保存管、澳柯玛
- 主营：滤芯吸头、离心瓶、培养皿、移液管、样品管、冷冻管、连排管、八连管、螺口管、离心管、PCR管、virya1250ul、细胞培养、生物科技、滤芯吸嘴、PCR板
- 主营：酶标条、酶标板、移液器、管管盖、移液管、冷冻管、pcr管盒、连排管、八连管、避光管、螺口管、离心管、凸面带、200加长、锥形瓶、pcr八连、聚丙烯、过滤板、培养皿、吸头盒、培养瓶、离心瓶、深孔板、反应板、带滤芯
- 主营：离心瓶、深孔板、乳胶手套、移液管、离心管、巴氏吸管、冻存管、石墨管、滤芯吸头、丁腈手套、生物磁珠、冻存盒、色谱柱、抑制器、500ml离心瓶
- 主营：离心瓶、冻存盒、细胞过滤器、冻存管、巴氏吸管、移液管、石墨管、乳胶手套、丁腈手套、淋洗液发生罐、样品瓶、导电吸头、采样锥、截取锥、离子色谱柱、离子抑制器、萃取池、氘灯、萃取小柱
- 主营：真空离心浓缩仪、超微量分光光度计、球磨机、Microbank菌种保存管、荧光定量pcr仪、恒温金属浴、磁珠磁力架、高压均质机、甩板机、多功能酶标仪、超声波细胞粉碎机、核酸蛋白分析仪、电泳仪、微孔板振荡器、高速冷冻离心机、电泳仪电源、研磨机、手持式匀浆机、拍打式均质机、组织破碎仪、超细筛分仪、恒温水浴锅、液氮罐、旋涡混匀仪、超声波清洗机
- 主营：滤芯吸头、移液吸头、离心瓶、冻存管、螺口管、PCR管、八连管、细胞培养、吸头
- 主营：1ml双向、移液器、发光板、移液管、螺口管、离心管、站立管、避光管管、培养板、滤芯吸头、细胞培养、独立包装、滤芯盒装、消毒螺口、液体处理、加长吸头、灭菌包装、实验室用品、酶标板透明、实验室玻璃、塑料培养皿、三角细胞摇瓶
- 主营：无包被、封膜仪、泵系统、微生物菌种保存管、金属浴、混匀仪、梯度pcr、分散机、热封仪、超声波、磨样仪、培养皿、微孔板、离心机、点焊机、研磨仪、研磨机、匀浆机、提取仪、半自动、载玻片、组织均质、细胞破碎、组织研磨、生物指示、组织匀浆
- 主营：吸头、离心瓶、培养板、PCR管、八连管、离心管、移液管、培养瓶、培养皿、三角摇瓶
- 主营：7h9肉汤、大肠杆菌、琼脂培养基、肉汤管、磷酸盐缓冲液、胰蛋白胨胆盐