GRADE & PURITYBioReagent?BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility.
Pour into sterile Petri dishes (typically 20–25 mL per 90 mm plate). Let solidify. Store as appropriate.
Streaking for isolation
Dry plates if necessary. Streak inoculum using a sterile loop with a quadrant or T-streak method to obtain isolated colonies. Invert plates and incubate under organism-appropriate conditions.
Colony counting (spread/spot plating)
Plate serial dilutions (e.g., 100 µL) with sterile spreaders or microdroplet methods. Incubate and count CFU on countable plates (generally 30–300 CFU/plate; literature). Report as CFU/mL or CFU/g.
Storage of prepared plates
Store wrapped/inverted at 2–8 °C to prolong shelf life. Warm to room temperature before use. Specific shelf-life for this item is not specified; refer to CoA/Spec Sheet.
Biological Roles
Scope note
BAT Agar is a complex medium; it does not have a single defined “biological role” like a pure metabolite. Instead, it functions as a supportive matrix and nutrient source for microbial growth.
General background (literature/general knowledge)
Agar matrix: Agar provides a non-nutritive, largely indigestible (for most bacteria) polysaccharide gel that creates a two-dimensional surface for colony formation and spatial separation.
Nutritional components: Complex media typically supply peptides, amino acids, vitamins, and minerals that support a wide range of microbial metabolisms. The specific nutrient profile of BAT Agar is not specified for this item; consult CoA/Spec Sheet.
Selectivity/differential action: Some agars include inhibitors (e.g., bile salts, dyes, antibiotics) or indicators (e.g., pH-sensitive dyes) to select for or differentiate among taxa. Whether BAT Agar is selective or differential is not specified for this item.
Microbial physiology studies: Solid media enable assessment of colony morphology, pigmentation, hemolysis (on blood agars), and enzymatic activities when proper substrates/indicators are included. Use matched controls and reference strains to interpret phenotypes.
Buffer Applications
Not typically applicable
BAT Agar is a microbiological culture medium, not a buffering reagent. While prepared media may contain buffering components to stabilize pH during growth, this product is not intended for standalone buffer preparation. For pH control needs, refer to dedicated buffer reagents and buffering systems.
Green Alternatives
Context
Culture media are largely water-based and, when agar is the gelling agent, rely on a renewable marine polysaccharide. Environmental considerations focus on sourcing, waste handling, and energy used during sterilization.
Greener practice considerations (literature/general knowledge)
Renewable gelling agent: Agar from sustainably harvested red algae is renewable. Alternatives like gellan gum (microbial polysaccharide) may offer comparable gel strength with potentially reduced required concentration, but may alter colony morphology.
Energy reduction: Use validated cycle parameters and load autoclaves efficiently to reduce energy and water consumption. Consider media sterilization by filtration only for non-gelling broths; agar-containing media require heat sterilization.
Waste minimization: Prepare only the volume needed. Solid biohazard waste (used plates) should be decontaminated (autoclaved) before disposal; explore programs for energy-efficient sterilization and waste heat recovery.
Packaging: Choose bulk sizes that match consumption to reduce packaging waste. Reuse plate sleeves and shipping materials where contamination risk is absent.
Trade-offs
Agar vs. gellan gum: Agar is broadly compatible and cost-effective; gellan can yield transparent gels and consistent gel strengths but may require different supplementation and can be more expensive.
Ready-to-use plates reduce energy on-site but increase transport and packaging footprints; dehydrated media lower transport mass/volume but require in-house sterilization.
Pharmaceutical Uses
Scope and limitations
For research use only (as specified). Not for drug, diagnostic, or clinical use.
Industrial and QC contexts (literature/general knowledge)
Environmental monitoring: Agar media are used in pharmaceutical manufacturing for environmental and surface monitoring and for bioburden testing when aligned with compendial methods. Compliance typically requires compendial or validated media with defined performance criteria; such status is not specified for this item.
Raw material/utility testing: Solid media support bioburden or microbial limits tests for water, intermediates, and non-sterile products when methods are appropriately validated. Specific pharmacopoeial alignment (USP/EP/JP) for this item is not specified; refer to CoA/Spec Sheet.
Excipient role: Not applicable—culture media are not formulation excipients.
Physical Properties
Item-specific facts (from Product Data)
Appearance: Not specified for this item; refer to CoA/Spec Sheet.
Any numerical specifications (pH of prepared medium, gel strength, etc.): Not specified for this item; refer to CoA/Spec Sheet.
Typical behavior: Dehydrated agar media dissolve upon heating in water and solidify on cooling to ~35–45 °C as a firm gel. Exact gel strength depends on formulation and concentration.
Solubility: Nutrient media are intended to be soluble/dispersible in water; agar requires heating to near boiling for complete dissolution (literature).
Density, refractive index, logP, pKa, UV cutoff: Not applicable/meaningful for complex dehydrated media.
Color/clarity of poured plates: Varies with formulation; many nutrient agars are pale to amber and slightly opalescent after sterilization (literature).
Quality & Grades
Item-specific facts (from Product Data)
Grade: BioReagent.
Interpretation and implications (literature/general knowledge)
BioReagent grade indicates suitability for general laboratory and life-science applications. For complex media, this typically implies consistent nutrient performance, low bioburden in the dehydrated product, and controlled lot-to-lot variability suitable for microbial culture workflows.
What BioReagent is not: It is not equivalent to clinical/diagnostic or GMP manufacturing grades. No claim is made for sterility prior to reconstitution or for pharmacopoeial compliance unless explicitly stated (not specified for this item; refer to CoA/Spec Sheet).
Lot verification: For complex media, quality is commonly verified via growth promotion testing (GPT) with reference strains, clarity, pH of the prepared medium, and gel strength. Specific acceptance criteria for this item are not specified; refer to CoA/Spec Sheet.
Stabilizers/indicators: Some agars include indicators (e.g., pH dyes), selective agents, or supplements. Presence/absence and concentrations are not specified for this item; refer to CoA/Spec Sheet.
Reaction & Applications
Scope note
As a culture medium, BAT Agar is not a reagent for chemical synthesis. “Applications” here refer to microbiological workflows.
General applications (literature/general knowledge)
Plate-based microbiology: Preparation of solid media for streaking, isolation, and colony enumeration of microorganisms. The selectivity/differential properties of BAT Agar are not specified for this item; consult CoA/Spec Sheet for intended organism groups.
Environmental/industrial testing: Solid media are used for monitoring bioburden, sanitary quality checks, and process hygiene assessment when matched to target organisms.
Teaching and research: Supports routine cultivation, phenotypic characterization, and maintenance of cultures.
Practical tips
Asepsis: Perform preparation and pouring near a flame or in a laminar-flow hood to minimize contamination.
Sterilization: Autoclave reconstituted medium at 121 °C for ~15 minutes (literature practice). Do not overheat to avoid sugar/caramelization and indicator degradation if present.
Pouring: Cool to ~45–50 °C before adding heat-labile supplements, then pour plates to a consistent depth (commonly 20–25 mL in standard 90 mm plates; literature) to ensure reproducible diffusion and colony morphology.
Controls: Include sterility controls (uninoculated plates) and, where applicable, growth-promotion controls with reference strains to verify performance.
Reaction Conditions
Context
This section is framed as preparation and sterilization conditions rather than chemical reaction parameters.
General preparation conditions (literature/general knowledge; not product specifications)
Reconstitution: Disperse the dehydrated medium in purified water with stirring. Heat to near boiling to fully dissolve agar.
Sterilization: Autoclave at 121 °C for ~15 minutes (15 psi) for typical volumes. Avoid prolonged sterilization that can darken the medium or degrade heat-labile components.
Post-sterilization handling: Cool to ~45–50 °C before adding sterile, heat-labile supplements (e.g., antibiotics). Mix gently to avoid bubble formation.
Pouring plates: Dispense aseptically into sterile Petri dishes; allow to solidify at room temperature on a level surface. Dry plates (covered) as needed to remove surface moisture before use.
Incubation: Inoculated plates are typically incubated inverted to prevent condensation drip. Temperature and atmosphere depend on target organisms (e.g., 20–30 °C for many fungi, 30–37 °C for many bacteria; literature). Exact conditions for BAT Agar are not specified for this item.
Quality checks
Verify appearance, pH (of prepared medium), and growth-promotion with relevant strains where applicable. Acceptance criteria for this item are not specified; refer to CoA/Spec Sheet.
Safety & Handling
Item-specific facts (from Product Data)
GHS Classification, Signal Word, H-statements, Pictograms: Not specified for this item; refer to SDS.
Storage Conditions: Room temperature (as provided).
Shipped In: Normal conditions.
Research Use: For research use only.
General safety guidance (literature/general knowledge; always defer to SDS)
Personal protective equipment: Use lab coat, safety glasses, and appropriate gloves. Avoid inhalation of dust and contact with eyes/skin.
Handling: Minimize dust generation; handle in a well-ventilated area. Prevent moisture uptake—keep containers tightly closed when not in use.
Incompatibilities: Strong oxidizers and strong acids/bases may degrade organic components. Avoid contact with moisture prior to use to prevent clumping and microbial contamination.
Thermal hazards: During preparation and autoclaving, hot liquids and steam can cause burns—use heat-resistant gloves and face/eye protection.
Biological safety: Once reconstituted, sterilized medium is prone to microbial growth. Practice aseptic technique to avoid unintended cultures. Dispose of used plates/broths as biohazard according to institutional policy (e.g., autoclave before disposal).
First aid (overview): If inhaled (dust), move to fresh air; if in eyes, rinse cautiously with water; if on skin, wash with soap and water; if ingested, rinse mouth. Seek medical attention if irritation persists.
Spill response: Avoid dust, sweep up carefully, and place in appropriate waste. Clean area to remove residue; prevent release to drains of reconstituted, contaminated media.
Solvent Selection
Applicability note
This product is a dehydrated microbiological medium. It is not used as a solvent. The relevant diluent is purified water.
Practical guidance (literature/general knowledge)
Preferred diluent: Use high-purity water (e.g., ASTM Type II or better). Impurities such as chlorine, heavy metals, or high hardness can inhibit growth or affect gelation.
Dissolution: Gradually disperse the powder into cold water with stirring to minimize clumping. Heat with agitation to near boiling until completely dissolved.
Clarification: Some media remain slightly opalescent after sterilization; filtration is generally not used for agar-containing media due to gelation upon cooling.
Comparative notes: If organic solvents are required for supplemental antibiotics or indicators, prepare sterile stock solutions separately in appropriate solvents (e.g., ethanol, methanol, DMSO), sterile-filter them, and aseptically add to cooled (~45–50 °C) sterilized medium. Solvent choice depends on supplement solubility and microbial tolerance; keep final solvent content low (typically ≤1–2% v/v) to avoid growth inhibition.
General guidance (literature/general knowledge; not product specifications)
As supplied: Keep container tightly closed in a cool, dry place. Protect from humidity to prevent clumping and pre-gelation. Use desiccant where appropriate.
Shelf life: Follow label guidance; unopened dehydrated media are typically stable for many months when dry. For this item, specific shelf life is not specified; refer to CoA/Spec Sheet.
Reconstitution and sterilization
Reconstitution medium: Purified water. Disperse powder gradually with stirring and heat to dissolve completely.
Sterilization: Autoclave at 121 °C for ~15 minutes (literature). Do not over-sterilize to avoid degradation of components.
Post-sterilization: Cool to 45–50 °C before adding heat-labile supplements. Pour plates aseptically.
Storage after preparation
Plates: Store inverted in sealed sleeves or wrapped to prevent desiccation, typically at 2–8 °C. Allow to equilibrate to room temperature and dry surface condensation before use. Specific hold time/shelf life for prepared plates is not specified for this item.
Broth (if prepared without agar): If applicable, store at 2–8 °C for short periods; avoid repeated reheating.
Disposal
Treat used media as biohazard. Autoclave before disposal in accordance with institutional and local regulations.
Structure & Identity
Item-specific facts (from Product Data)
SKU: B1528710
Product Name: BAT Agar
Grade: BioReagent
CAS: Not specified for this item; refer to CoA/Spec Sheet.
Molecular Formula: Not specified for this item; refer to CoA/Spec Sheet.
Molecular Weight: Not specified for this item; refer to CoA/Spec Sheet.
SMILES / InChI / InChIKey: Not applicable for a complex medium; not specified for this item; refer to CoA/Spec Sheet.
General description (literature/general knowledge)
BAT Agar is a complex, multi-component, agar-based microbiological medium. As a blend of organic nutrients and a gelling agent (agar), it does not have a single defined molecular structure.
Structural features: The gelling matrix is typically agar (a sulfated galactan from red algae) composed primarily of agarose (repeating agarobiose units: alternating D-galactose and 3,6-anhydro-L-galactose) and agaropectin (more highly substituted). Nutrient components (if present) commonly include peptides, amino acids, carbohydrates, mineral salts, and buffers, but exact composition is manufacturer-dependent.
Physical form is usually a dehydrated, free-flowing powder that forms a firm gel when dissolved in water and sterilized, but specific appearance for this item is not specified.
Synthetic Utility
Not applicable
BAT Agar is a biological culture medium and is not used as a reagent or building block in synthetic organic, inorganic, or polymer chemistry. For laboratory synthesis applications, refer to dedicated reagents and catalysts.
Target Specificity
Not applicable
No antibody, probe, or biochemical target information is associated with this product. As a culture medium, any organismal specificity (selective/differential features) depends on formulation details that are not specified for this item; refer to CoA/Spec Sheet.
Frequently Asked Questions
How should this product be stored?
Store at room temperature.
Need help choosing the grade?
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
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