Thiobacillus ferrooxidans Medium - BioReagent

Cat. No.: T1528360

GRADE & PURITY BioReagent

Storage

Room temperature

Shipped In

Normal

Overview

For cultivation of Acidithiobacillus ferrooxidans and other iron-oxidizing bacteria.

Specifications

Specifications & Purity

BioReagent

Storage

Room temperature

Shipped In

Normal

Grade

BioReagent

Product Line

biological_products

Application Protocols

No vendor-validated, item-specific protocols are provided for this product. The following high-level, literature-based guidance may assist in developing your SOPs (not product specifications):

• Reconstitute the dehydrated medium in ultrapure water according to label instructions. Mix until fully dissolved.
• Adjust pH to the desired acidic value appropriate for your study (commonly ~1.5–2.5), using sterile acid/base with cooling and aseptic technique.
• Sterilize the base medium (autoclave) if compatible; alternatively, filter-sterilize using 0.22 µm membranes for heat-labile formulations. Cool to room temperature.
• Prepare fresh sterile electron-donor solutions (e.g., Fe(II) or reduced sulfur, as required by your design) and add aseptically to the cooled sterile base medium.
• Inoculate with a pre-adapted culture of Acidithiobacillus ferrooxidans. Incubate with shaking/aeration at the strain-appropriate temperature.
• Monitor growth by redox potential, Fe(II)/Fe(III) assays, sulfate formation, pH, or optical methods suitable for turbid, precipitate-forming cultures.

For precise preparation amounts, sterilization times, and supplement concentrations, consult the product’s CoA/Spec Sheet and relevant primary literature.

Biological Roles

Thiobacillus (Acidithiobacillus) ferrooxidans is an acidophilic, chemolithoautotrophic bacterium with central roles in iron and sulfur biogeochemical cycling (literature/general). A medium tailored for this organism supports:

• Energy metabolism: Oxidation of Fe(II) to Fe(III), and oxidation of reduced sulfur species (e.g., elemental sulfur, thiosulfate), coupling these processes to proton motive force generation and ATP synthesis.
• Carbon fixation: Autotrophic growth via the Calvin–Benson–Bassham cycle using CO2 as the carbon source; biomass formation depends on inorganic nitrogen (e.g., ammonium) and phosphate availability.
• Environmental impact: Key contributor to the formation and progression of acid mine drainage via Fe(II) and sulfide mineral oxidation; conversely, harnessed for bioleaching to recover metals from sulfide ores.
• Community interactions: Often co-exists with other acidophiles (e.g., Leptospirillum spp.) where ferric iron acts as an oxidant for sulfide minerals; media composition and pH can shape consortia structure.
• Adaptation to low pH and metals: Possesses mechanisms for maintaining intracellular pH homeostasis and tolerance to elevated soluble metals; acidic media help maintain ecological relevance in laboratory studies.

This product provides the nutrient and ionic background to cultivate such organisms for research into metabolism, redox transformations, biomining, corrosion, and environmental remediation. Specific formulation components and concentrations for this item are not disclosed here; refer to the product documentation for details.

Buffer Applications

Not a dedicated buffering system. This product is a culture medium for acidophilic chemolithotrophs.

• Literature notes: Media used for Thiobacillus/Acidithiobacillus are typically maintained at low pH (≈1.5–2.5) to reflect ecological conditions and support Fe(II) stability. Buffer capacity may be limited and governed largely by sulfate/phosphate equilibria, if present.
• For experiments requiring precise pH control, researchers often adjust pH with sterile mineral acids/bases and monitor during growth, as biological oxidation can shift acidity.

For rigorous buffer formulation details or recipes, consult primary literature and adjust only if compatible with your culture objectives. Item-specific pH targets and buffering components are not specified for this product.

Green Alternatives

“Green alternatives” typically refer to replacing hazardous solvents or reagents; this product is a culture medium and does not have a direct green substitute. Nevertheless, sustainable practices can be applied (literature/general guidance):

• Concentrates and stocks: Prepare sterile concentrates of stable components (where appropriate) to reduce packaging and energy associated with repeated sterilizations.
• Right-size preparation: Make only the volume required for each experiment to minimize disposal of acidic, metal-laden spent media.
• Closed-loop handling: Where permitted, collect spent media containing ferric iron or sulfate for appropriate treatment or recycling in lab-scale leaching systems.
• Energy efficiency: Use validated autoclave cycles and load planning to reduce energy consumption while maintaining sterility assurance.
• Material choices: Prefer reusable glassware (acid-washed) over disposable plastics when compatible with acidic conditions and sterility requirements.

Trade-offs:

• Highly acidic media and iron salts may necessitate corrosion-resistant equipment and careful waste neutralization, which can increase resource use. Balance these needs against experimental requirements.

There is no one-to-one greener “replacement” for a specialized microbiological medium; focus instead on minimized waste and optimized workflows.

Pharmaceutical Uses

This product is not an excipient or pharmaceutical-grade material. It is a research-use-only microbiological medium designed for cultivating acidophilic chemolithotrophic bacteria in laboratory settings.

• No pharmacopeial monograph or compendial status is indicated for this item.
• Not intended for human or veterinary applications, clinical diagnostics, or manufacturing of medicinal products.

If you require media qualified for GMP or clinical applications, consult suppliers offering materials with appropriate compliance, traceability, and validation packages.

Physical Properties

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Solubility: Intended for aqueous preparation; medium components are formulated for dissolution in water (literature/general). Specific solubility parameters are not provided for this item.
• pH (prepared medium): Not specified for this item; refer to CoA/Spec Sheet. (Literature for T. ferrooxidans cultivation often employs acidic conditions, typically pH ~1.5–2.5, depending on the electron donor and objective.)
• Melting/Boiling Point, Density, Refractive Index, UV cutoff, conductivity: Not specified for this item; refer to CoA/Spec Sheet.

Practical notes (literature/general guidance):

• Dissolution is improved with gradual addition to stirred water; some salts are hygroscopic and should be handled quickly to minimize caking.
• If iron(II) salts are included or added, prepare fresh and minimize aeration prior to sterilization/usage to limit Fe(II) oxidation to Fe(III).
• Sterile filtration of heat-labile components is common; otherwise, media are typically autoclaved according to standard microbiology practices.

Because this is a multi-component mixture for biological culture, many single-compound physical constants are not applicable. For item-specific quantitative data, consult the Certificate of Analysis or Specification Sheet.

Quality and Grades

• Grade: BioReagent — intended for laboratory research applications involving biological systems. BioReagent-grade products emphasize consistency, low bioburden, and suitability for microbiology and biochemical workflows.

What BioReagent typically implies (general):

• Components and blending controlled to support reproducible culture performance.
• Attention to contaminants that can inhibit growth (e.g., heavy metals at inhibitory levels, organics, or particulates), though exact impurity specifications are product-specific.
• Batch traceability, with lot-specific CoA available upon request.

Item-specific notes:

• Purity percentages, stabilizers, metal limits, UV absorbance, and other analytical criteria are not specified for this item; refer to CoA/Spec Sheet.
• The product is categorized under life science reagents and is designated For research use only.

Practical guidance:

• For sensitive iron/sulfur-oxidizer work, consider validating a new lot by a small-scale inoculation trial to confirm growth kinetics and oxidation rates meet your lab’s benchmarks.
• If your application is analytical (e.g., trace-metal studies), pair this medium with high-purity water and dedicated acid-washed glassware to minimize background signals.
• Record lot numbers in all reports to maintain experiment traceability.

For any compendial or QC acceptance criteria (pH after preparation, sterility assurance, etc.), please consult the product label and CoA.

Reaction and Applications

This product is used for cultivating Thiobacillus (Acidithiobacillus) ferrooxidans and related acidophilic chemolithotrophs in research settings. While not a reagent for synthetic chemistry reactions, it enables biological oxidation processes of geochemical relevance.

Research applications (literature/general):

• Iron oxidation studies: Support growth on Fe(II) as electron donor for assays of ferrous-to-ferric oxidation kinetics, redox potential measurements, and bio-assisted precipitation phenomena.
• Sulfur and sulfide oxidation: When used with reduced sulfur substrates, facilitates studies of thiosulfate/polysulfide/elemental sulfur oxidation and sulfate generation.
• Biomining and bioleaching: Lab-scale simulations for metal recovery from sulfide ores, heap leaching models, and evaluation of microbial consortia performance.
• Acid mine drainage (AMD) research: Enrichment and maintenance of strains implicated in AMD formation and mitigation strategies.
• Electrochemical bio-oxidation: Coupling to electrodes or ferric/ferrous redox mediators to study extracellular electron transfer under low pH conditions.

Practical tips (literature/general):

• Maintain acidic pH appropriate to the electron donor strategy (often ~1.5–2.5). Monitor and adjust using sterile acid/base as required; note that Fe(II) oxidation can acidify medium.
• Prepare fresh Fe(II) stock solutions and add aseptically to minimize abiotic oxidation; reduce aeration before inoculation if controlling oxidation rate is important.
• Employ sterile technique and incubate at temperatures matching the strain’s optimum; shaking improves oxygen transfer for iron oxidation.

Item-specific performance characteristics are not specified; consult CoA/Spec Sheet and validate conditions in your lab.

Reaction Conditions

Not a chemical reaction reagent. However, typical culture conditions for Acidithiobacillus ferrooxidans are provided here as general literature guidance to help plan experiments. These are not item-specific specifications:

• Temperature: Often 25–35°C depending on strain; verify with your isolate.
• pH: Acidic; commonly adjusted to ~1.5–2.5 at 25°C. Monitor over time as metabolism can alter pH.
• Aeration/Agitation: Shaking or bubbling to provide oxygen supports iron and sulfur oxidation; control aeration to manage Fe(II)→Fe(III) oxidation rates.
• Electron donors: Fe(II) salts or reduced sulfur species are supplied according to the experimental design; prepare fresh and add aseptically.
• Sterility: Autoclave base medium when suitable; filter-sterilize heat-labile supplements.
• Inoculum: Start with an actively growing culture; acclimate to target pH and donor concentration if transitioning from different conditions.

Item-specific directions (e.g., exact grams per liter, sterilization cycles) are not provided here; follow the label/CoA and your institutional SOPs, and validate conditions with small-scale trials.

Safety and Handling

• GHS Classification / Signal Word / H-Statements / Pictograms: Not specified for this item; refer to the product SDS for authoritative hazard classification.
• General hazards (literature/general): Dehydrated culture media can be nuisance dusts and may cause mechanical irritation to eyes and respiratory tract. Acidic media components or iron salts (if present or added during preparation) can be corrosive in solution.
• PPE: Use appropriate laboratory PPE: lab coat, safety glasses or face shield, and disposable gloves. Employ a dust mask/respirator if airborne dust may form (per risk assessment and SDS guidance).
• Handling: Avoid creating dust. Add powder to water slowly with stirring to minimize clumping and aerosolization. If preparing acidic media, add acid/base cautiously with cooling and secondary containment.
• Incompatibilities (general): Store away from strong bases or strong oxidizers/reducers unless part of the intended formulation protocol. Keep ferrous salts (if handled separately) away from oxidizing environments to limit premature oxidation.
• Microbiological practice: Prepare and dispense under aseptic conditions. Sterilize by autoclaving when suitable; filter-sterilize heat-labile supplements. Handle cultures of Acidithiobacillus spp. using BSL-1/BSL-2 practices as dictated by institutional biosafety policies.
• First aid (overview): In case of eye/skin contact, rinse with water for several minutes; remove contaminated clothing. If inhaled, move to fresh air. If ingested, rinse mouth. Seek medical attention as needed. Defer to the SDS for detailed measures.
• Always consult the current SDS for this specific product before use.

Solvent Selection

Not a solvent-selection product. This is a dehydrated culture medium intended to be reconstituted in water.

• Primary solvent: Ultrapure water (type I or equivalent) is typically used to prepare microbiological media (literature/general guidance).
• Miscibility: Upon reconstitution, the medium is an aqueous solution; organic solvent systems are not applicable.
• Ionic strength and acidity: Media for Thiobacillus/Acidithiobacillus are commonly formulated at low pH (acidic), but the exact target pH for this item is not specified; consult CoA/label.

When preparing:

• Use freshly produced, degassed ultrapure water when handling Fe(II)-containing solutions to limit oxidation (literature/general).
• If supplements are heat-labile, prepare them in sterile water and add by aseptic filtration after base medium sterilization.

If your application requires an alternative aqueous matrix (e.g., defined ionic background for electrochemical assays), validate organism performance after any deviations from standard water preparation.

Storage and Reconstitution

• Storage Conditions (as supplied): Room temperature (per Product Data). Store tightly closed in a dry place to minimize caking and moisture uptake.
• Shipping: Normal (per Product Data).
• Shelf life: Not specified for this item; refer to CoA/Spec Sheet.

Reconstitution (general literature guidance; not product specifications):

• Use freshly prepared ultrapure water. Add powder gradually with stirring until completely dissolved.
• Adjust pH to target acidity appropriate for Acidithiobacillus cultures if required by your protocol; verify pH at working temperature.
• Sterilize by autoclaving when compatible. For heat-labile components, filter-sterilize (0.22 µm) and add aseptically after the base medium has cooled.
• If employing Fe(II) or reduced sulfur donors, prepare fresh sterile stocks separately and add immediately before use to limit abiotic oxidation.
• Dispense into sterile vessels, label with lot number, preparation date, and pH.

Prepared media:

• Store at 2–8°C protected from light when possible to limit Fe(II) oxidation and microbial contamination (literature/general); equilibrate to room temperature before use. Avoid repeated freeze–thaw.

Always defer to the product label and CoA/Spec Sheet for any item-specific directions and to your institutional SOPs for sterilization and aseptic handling.

• Research Use Note: For research use only.

Structure and Identity

This product is a prepared culture medium optimized for the cultivation of Thiobacillus (Acidithiobacillus) ferrooxidans and related acidophilic, chemolithotrophic bacteria.

• SKU: T1528360
• Product Type: Dehydrated microbiological medium (mixture), not a single defined chemical entity
• Grade: BioReagent
• CAS: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular Formula: Not applicable to a mixture; not specified for this item.
• Molecular Weight: Not applicable to a mixture; not specified for this item.
• SMILES / InChI / InChIKey: Not applicable to a mixture; not specified for this item.

Structural features (descriptive):

• A multicomponent inorganic medium intended to support growth of iron- and/or sulfur-oxidizing bacteria. As a blend, it does not have a single 2D structure.
• Typically prepared in ultrapure water and sterilized prior to inoculation (literature/general guidance).

Notes on composition (literature/general knowledge, not product-specific):

• Media for T. ferrooxidans commonly include inorganic salts and may be supplemented with an iron(II) source (e.g., ferrous sulfate) or reduced sulfur species as electron donors, along with ammonium and phosphate as nutrients. Exact formulation and concentrations vary by medium (e.g., variants of “9K” medium) and application. This product’s specific formulation is not disclosed here; consult the product label or CoA for details.

Synthetic Utility

Not applicable. This product is a culture medium rather than a chemical building block or reagent for organic synthesis.

• For insights on how to employ the medium in microbiological research, see the sections “Reaction & Applications,” “Biological Roles,” and “Storage & Reconstitution.”

Target Specificity

Not applicable. This product is not an antibody or affinity reagent and has no antigen/epitope specificity. It is a culture medium intended for research cultivation of Thiobacillus (Acidithiobacillus) ferrooxidans.