Meclary Agar - BioReagent

Cat. No.: M1528501

GRADE & PURITY BioReagent

Storage

Room temperature

Shipped In

Normal

Descripción general

For fungal cultivation

Specifications

Especificaciones y pureza

BioReagent

Condiciones de almacenamiento de almacenamiento

Room temperature

Enviado en

Normal

Grado

BioReagent

Product Line

Productos biológicos

Application Protocols

Item-specific, tested applications and conditions are not provided in the Product Data. General procedures for agar media are outlined below. Always adapt to your SOPs and consult the CoA/Spec Sheet for this item.

• Plate preparation (general):

• Weigh the specified amount of dehydrated medium (value not specified here).
• Add to deionized water, heat with stirring until fully dissolved.
• Autoclave at 121 °C for a validated time.
• Cool to ~50 °C; add sterile supplements if required.
• Pour into sterile Petri dishes to a standard depth (~4 mm); allow to solidify. • Inoculation and incubation: Streak, spread, or spot inoculate. Incubate under conditions appropriate to the organism(s) of interest (temperature/atmosphere not specified for this item). • Quality checks: Perform sterility control (uninoculated plate), and, if applicable, growth promotion/inhibition tests with control strains per your QC program. • Disposal: Autoclave used plates/broths before disposal in accordance with biosafety regulations.

Biological Roles

• Functional role (general for agar media): Provides a solid, inert matrix that supports the diffusion of nutrients and metabolites while immobilizing microorganisms for colony formation. If nutrients/indicators are included, the medium can also supply carbon/nitrogen sources and report metabolic activity via color change or precipitation reactions. • Growth and differentiation: Depending on formulation (not specified for this item), the medium may be:

• Nonselective (supporting a broad range of bacteria/yeasts),
• Selective (inhibiting specific groups via salts, dyes, or antibiotics), and/or
• Differential (revealing metabolic traits via pH or chromogenic indicators). • Experimental impact: Gel strength, water activity, and pH influence colony size and morphology; consistent preparation is essential for reproducible CFU counts and inhibition zone diameters (general guidance). • Downstream compatibility: Plates prepared from agar media are compatible with replica plating, phage assays, and image-based colony analysis (general knowledge). Item-specific biological performance characteristics are not specified; refer to CoA/Spec Sheet.

Buffer Applications

This product is a culture medium matrix rather than a defined buffering reagent.

• Not typically used to make standalone buffer systems. If the formulation includes buffering salts, they define the working pH of the prepared medium; for this item, specific buffer composition and pH range are not specified—refer to CoA/Spec Sheet. • Practical note: When supplementing with antibiotics or pH-sensitive indicators, verify the final pH after sterilization and cooling to ensure activity and stability (general guidance).

Green Alternatives

• Sustainability perspective (general): Agar is derived from marine red algae and is a renewable, biobased gelling agent, often preferred over animal-derived gelatin for sustainability and biosafety reasons. • Potential alternatives and tradeoffs (literature/general):

• Gellan gum: Microbially produced polysaccharide; can achieve strong, clear gels at lower concentrations. May require controlled cation content and can be costlier.
• Carrageenan blends: Also algal-derived; gel texture and thermal hysteresis differ from agar, potentially impacting microbial motility and diffusion assays.
• Plant-based or synthetic hydrogels (e.g., carboxymethylcellulose, polyacrylamide for electrophoresis-only contexts): Not typically suitable for general microbial culture due to nutrient interactions or toxicity. • Process improvements:
• Use energy-efficient heating/autoclaving cycles validated for sterility assurance while minimizing time-at-temperature.
• Prepare only the volume needed to reduce waste; store unused dehydrated medium tightly sealed to extend shelf life. • Comparative overview (general):
• Agar: Broad compatibility, stable at incubation temperatures, simple preparation.
• Gellan: Lower use level, clearer gels; may alter diffusion characteristics in bioassays.
• Gelatin: Lower sustainability and melts near 35 °C—unsuitable for most microbiology.

Pharmaceutical Uses

No therapeutic claims. Discussion below concerns manufacturing/formulation and quality control contexts only (general information for agar-based products).

• Excipient roles (general): Agar can function as a gelling, thickening, or suspending agent in non-sterile oral or topical prototypes, and as a matrix component for microbiological quality control assays (e.g., bioburden, environmental monitoring). This item’s suitability for GMP use is not specified; refer to CoA/Spec Sheet. • Compendial status: Specific pharmacopeial conformance (USP/EP/JP) is not provided for this item; refer to CoA/Spec Sheet. • QC microbiology: Agar media are widely used for plate count methods, growth promotion testing, and inhibitor/antibiotic assays. Selectivity/differential properties for this specific product are not specified—consult the product documentation.

Physical Properties

Because this is a formulated medium/mixture, single-compound properties do not apply. Item-specific values are not provided in the Product Data.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet. • Melting/gelation behavior (literature, general for agar media): Agar typically dissolves in hot water (>85–90 °C), gels on cooling (approx. 30–40 °C), and remelts at higher temperatures, exhibiting hysteresis. Exact temperatures for this item are not specified; refer to CoA/Spec Sheet. • Density, refractive index, pKa, logP: Not applicable/Not specified for this item; refer to CoA/Spec Sheet. • Solubility: Readily dispersible in water with heating (general for agar-based media). Item-specific solubility and recommended concentration are not specified; refer to CoA/Spec Sheet. • pH of prepared medium: Not specified for this item; refer to CoA/Spec Sheet. • UV cutoff/absorbance: Not specified for this item; refer to CoA/Spec Sheet.

Quality and Grades

• Supplied grade: BioReagent (item-specific fact). • What BioReagent typically implies (general): Suitable for biological laboratory applications, prepared and controlled to support reproducible experimental outcomes. For culture media, this often includes controls on raw material consistency, microbial bioburden, and performance testing with representative organisms. • Item-specific specifications (gel strength, clarity, ash, moisture, pH of 1× preparation, microbial growth performance): Not specified for this item; refer to CoA/Spec Sheet. • Stabilizers/indicators: Not specified for this item; refer to CoA/Spec Sheet. • Practical notes on quality (general for agar media):

• Lot-to-lot consistency is critical for colony morphology, diffusion-based assays, and selective/differential behavior if indicators/inhibitors are present.
• Performance testing commonly assesses recovery/inhibition of control strains and gel firmness at recommended g/L; consult the CoA for this item’s validated organisms and endpoints if available. • Compliance: Pharmacopeial/standard references (if any) are not specified for this item; refer to CoA/Spec Sheet.

Reaction and Applications

As a microbiological culture medium, this product is not used as a reagent for chemical synthesis. Instead, its applications are biological/analytical.

• Typical laboratory uses (general for agar media):

• Preparation of solid plates for isolation of microbial colonies and purity checks.
• Pour plates/spread plates for enumeration (CFU) and environmental monitoring.
• Diffusion assays (e.g., antimicrobial susceptibility/zone-of-inhibition) when the formulation is appropriate.
• Maintenance of microbial stocks and phenotype characterization based on colony morphology, pigmentation, and growth patterns. • If the formulation includes selective/differential agents (not specified here), the medium can support targeted recovery or inhibition and visual differentiation. For this item, exact selectivity and indicators are not specified; refer to CoA/Spec Sheet. • Practical tips (general):
• Fully dissolve the medium with gentle boiling; avoid localized scorching. Clarify by filtration only if the formulation allows.
• Degas briefly after sterilization (or allow to cool) to minimize bubble formation when pouring plates.
• Standard plate depth is ~4 mm; calibrate volume per plate size to ensure consistent diffusion and growth conditions (general guidance).

Reaction Conditions

Not applicable to chemical reactions. For laboratory preparation of plates/broth from agar media (general guidance only; item-specific instructions are not provided):

• Dissolution: Disperse the dehydrated medium in deionized water. Heat with stirring to achieve full dissolution; avoid scorching. • Sterilization: Autoclave at 121 °C using an appropriate time/pressure validated for volume. Allow to cool to ~45–55 °C before pouring plates or adding heat-labile supplements. • Concentration, pH, and supplements: Exact g/L load, target pH, and supplement schedules for Meclary Agar are not specified for this item—refer to CoA/Spec Sheet. • Expected performance: Growth promotion/inhibition profiles and colony morphology depend on the specific formulation; consult the product documentation for validated organisms if available.

Safety and Handling

• GHS classification, signal word, H-statements, pictograms: Not specified for this item; refer to SDS. • General hazards (mixtures/agar media – general knowledge):

• Low acute toxicity expected; treat as laboratory chemical. Dust may cause mechanical irritation to eyes/respiratory tract. Avoid inhalation and contact.
• Hot, freshly sterilized agar can cause thermal burns—handle melted medium with heat-resistant gloves and face/eye protection.
• After use, plates/broths may contain live microorganisms; handle as biohazard and autoclave before disposal per institutional biosafety protocols. • PPE: Lab coat, safety glasses, appropriate gloves (e.g., nitrile), and dust mask/respirator if generating dust. Use heat protection when pouring plates. • Incompatibilities: Strong oxidizers may degrade organic components; avoid contamination with acids/bases that could alter gel/medium performance (general guidance). • First aid (overview; defer to SDS):
• Inhalation of dust: Move to fresh air; seek medical advice if irritation persists.
• Eye contact: Rinse cautiously with water for several minutes; remove contacts if present and easy; seek medical attention if irritation continues.
• Skin contact: Wash with soap and water; for burns from hot medium, cool with water and obtain medical attention.
• Ingestion: Rinse mouth; seek medical advice. • Fire safety: Organic mixture; may burn if dry. Use water spray, CO2, foam, or dry chemical. Combustion may produce CO/CO2; firefighters wear SCBA.

Solvent Selection

This product is a water-prepared culture medium; traditional solvent selection is not applicable.

• Medium preparation solvent: Deionized or distilled water (general for agar-based media). Avoid high-ionic-strength or highly buffered waters that can shift pH or ionic balance unless specified by the formulation. • Additives and supplements: If the formulation requires antibiotics, carbohydrates, or heat-labile factors, add aseptically after autoclaving and cooling to ~45–55 °C to avoid degradation (general guidance). • Comparison to alternatives:

• Agar vs. gellan gum: Agar offers robust gelation with broad compatibility; gellan can form clearer gels and tolerate lower concentrations but may require specific cation conditions (literature, general).
• Agar vs. gelatin: Agar maintains gel strength at typical incubation temperatures (30–37 °C) where gelatin liquefies (general).

Storage and Reconstitution

• Storage conditions (item-specific): Room temperature (from Product Data). Keep container tightly closed, dry, and protected from moisture and contamination. Store away from strong oxidizers. • Shipping (item-specific): Shipped at ambient temperature (Normal). • Shelf life: Not specified for this item; refer to CoA/Spec Sheet. • Reconstitution/preparation (general guidance):

• Use deionized or distilled water.
• Heat with stirring to dissolve completely; avoid boiling over.
• Autoclave at 121 °C using a validated cycle for the volume.
• Cool to ~45–55 °C before pouring or adding heat-labile supplements. • Recommended concentration (g/L) and target pH: Not specified for this item; refer to CoA/Spec Sheet. • Freeze–thaw: Not applicable to the dehydrated powder. Do not freeze prepared plates unless your protocol validates performance after freezing; agar gels can suffer syneresis and texture changes. • Research Use Note: For research use only (from Product Data).

Structure and Identity

• Item type: Complex nutrient/gelling medium (agar-based). This product is a formulated mixture rather than a single defined chemical. • CAS: Not specified for this item; refer to CoA/Spec Sheet. • Molecular formula: Not applicable (mixture). • Molecular weight: Not applicable (mixture). • SMILES / InChI / InChIKey: Not applicable for mixtures; Not specified for this item; refer to CoA/Spec Sheet. • Structural features (general):

• Contains polysaccharide agar (agarose/agalactan fractions) as the primary gelling matrix (general knowledge for agar media), typically combined with nutrients, salts, and indicators depending on the formulation. Exact composition for Meclary Agar is not specified for this item; refer to CoA/Spec Sheet. • 2D structure description: As a mixture, it does not have a single discrete molecular structure; the predominant matrix (agar) consists of repeating galactose-based units forming linear chains that gel via hydrogen bonding upon cooling (general knowledge).

Synthetic Utility

Not applicable. This product is not a chemical building block or reagent for organic synthesis.

• If used in method development or analytics: Agar plates can support bioassays whose outcomes inform synthetic biology or fermentation workflows, but the medium itself does not participate in chemical reactions (general note).

Target Specificity

Not applicable. This product is not an antibody or affinity reagent.

• No antigen/epitope/species reactivity, clone, or isotype information is associated with this item.