Vibrio Chromogenic Medium - BioReagent

Cat. No.: V1528762

GRADE & PURITY BioReagent

Storage

Store at 2-8°C

Shipped In

Wet ice

Visão geral

For rapid detection of Vibrio; Vibrio parahaemolyticus appears blue, Vibrio cholerae appears red

Specifications

Especificações e pureza

BioReagent

Condições de armazenamento de armazenamento

Store at 2-8°C

Enviado em

Wet ice

Este produto requer transporte de cadeia fria. Serviços terrestres e outros serviços econômicos não estão disponíveis.

Grau

BioReagent

Product Line

Produtos biológicos

Application Protocols

General guidance (literature) for using a Vibrio chromogenic medium. Item‑specific instructions are Not specified for this item; follow the CoA/Spec Sheet and institutional SOPs.

• Materials:
  • High‑purity water (ASTM Type I/II), sterile plates/tubes, calibrated balance, heat source, and autoclave.
  • Control strains representing target Vibrio spp. and representative non‑target flora.
• Preparation (dehydrated media, typical literature workflow):
  1. Weigh the quantity indicated on the label/CoA into an appropriate volume of water; mix while heating to fully dissolve. Avoid prolonged overheating of chromogens.
  2. Sterilize by autoclaving only if directed by the CoA; some chromogens are added aseptically after sterilization via 0.2 µm filtration.
  3. If solid medium is required and agar is included, dispense into sterile plates at ~45–50°C; allow to solidify. Protect plates from light.
• Inoculation and incubation:
  • Streak or spread appropriate dilutions of samples. Incubate inverted plates, commonly 35–37°C for 18–24 h (optimize per target species and matrix).
  • If salinity adjustment is recommended for Vibrio recovery, supplement with sterile NaCl as specified by the formulation (for this item: Not specified).
• Reading results:
  • Observe colony color and morphology against a white background. Record presumptive identifications and confirm by orthogonal tests (biochemical/molecular).
• QC:
  • Run positive/negative controls with each lot; document performance.

For research use only (per Product Data).

Biological Roles

This tab addresses the biological context of the target organisms for which this medium is designed (general literature information).

• Target group: Vibrio spp., Gram‑negative, facultatively anaerobic, often halophilic bacteria prevalent in marine and estuarine environments.
• Differentiation principle: Species‑specific enzymatic activities (e.g., certain glycosidases, aminopeptidases, or carbohydrate utilization enzymes) hydrolyze chromogenic substrates in the medium, releasing colored chromophores that accumulate in colonies.
• Ionic/osmotic considerations: Many Vibrio species prefer elevated NaCl; appropriate salinity in the medium enhances recovery and selectivity (exact NaCl level for this item: Not specified).
• Growth factors: Peptones, yeast extract, and trace ions typically support rapid growth; inhibitors limit competing flora, enabling clearer differentiation (formulation specifics: Not specified).
• Outcomes: Distinct colony hues enable presumptive assignment to Vibrio groups in research settings, which can then be verified by confirmatory biochemical or molecular tests.

Note: This information is provided to contextualize the intended biological use of a chromogenic Vibrio medium and does not constitute medical or diagnostic guidance. For research use only (per Product Data).

Buffer Applications

This product is a complete culture medium rather than a buffering agent. It is not typically used to formulate standalone buffer systems. If pH control is required during preparation, use the buffering capacity inherent to the medium or supplement with compatible buffers as directed by the formulation (item-specific guidance: Not specified for this item; refer to CoA/Spec Sheet).

Green Alternatives

• Process considerations (general): Media preparation can be resource-intensive due to autoclaving and disposable plasticware. Greener practice focuses on minimizing energy, consumables, and chemical waste while ensuring biosafety.

Options and trade-offs (literature/general):

• Ready‑to‑use plates vs in‑house prep:
  • Pros: Eliminates autoclave energy/time and reduces preparation waste; consistent performance; less exposure to powdered media.
  • Cons: Refrigerated transport/storage footprint; shorter shelf life once poured; cost.
• Autoclave optimization:
  • Batch plates efficiently to maximize chamber load; use validated shortest effective cycles to reduce energy.
• Light management:
  • Protecting plates from light preserves chromogens, reduces remake frequency, and lowers waste.
• Waste handling:
  • Implement on‑site sterilization of spent plates/cultures to minimize transport; segregate clean packaging for recycling where regulations allow.
• Alternative indicators:
  • Some chromophores have improved environmental profiles; selection is formulation-dependent and Not specified for this item.

No composition-specific “green” substitutions can be recommended without the exact formulation; consult the CoA/Spec Sheet for compatible practices.

Pharmaceutical Uses

This BioReagent‑grade medium is intended for research use only and is not certified for clinical diagnostics or pharmaceutical manufacturing. Typical roles for related products (literature/general):

• Environmental monitoring in research labs associated with marine biotechnology.
• Microbiological method development and validation studies (non‑GMP), including selectivity/sensitivity assessments for Vibrio spp.

Pharmacopeial status, excipient use, and GMP application details are Not specified for this item. Users in regulated environments should qualify the medium internally and refer to the CoA/Spec Sheet for available quality attributes.

Physical Properties

Item-specific physicochemical specifications are not provided in the Product Data for this formulated medium.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Solubility in water: Readily water-preparable (literature, for dehydrated microbiological media); exact concentration/solids loading: Not specified for this item.
• pH (prepared medium), gel strength (if agar-based), osmolality, and chromogen stability: Not specified for this item; refer to CoA/Spec Sheet.
• Typical attributes (literature/general):
  • Form: Dehydrated powder that dissolves in purified water; may require heating to aid dissolution prior to sterilization and plating.
  • Color after preparation: Often light to medium colored; final plate/culture color development occurs upon incubation with target organisms via chromogen cleavage.
  • Light sensitivity: Chromogenic substrates can be light sensitive; minimize exposure during preparation and storage of plates (literature).

All definitive numeric values (e.g., moisture content, pH at 25°C, fill weight) are item-specific quality attributes and are Not specified for this item; refer to CoA/Spec Sheet.

Quality and Grades

• Supplied grade: BioReagent (per Product Data)
  • Meaning (general): BioReagent grade indicates suitability for biological and microbiological research workflows, with raw materials and manufacturing controls aligned to consistent performance in culture media preparation. It does not imply clinical or diagnostic certification.
• Selectivity and differentiation: As a chromogenic medium, performance hinges on the quality and stability of the chromogenic substrates and selective components. Batch-to-batch consistency is controlled during manufacture; verify performance with appropriate control strains on receipt (literature best practice).
• UV absorbance limits, metal content, residual solvents, and individual component specifications: Not specified for this item; refer to CoA/Spec Sheet.
• Stabilizers and inhibitors: If present, these are proprietary to the medium formulation; Not specified for this item.
• Documentation: For detailed specifications (e.g., prepared pH range, plating concentration, gel strength, recommended supplements), consult the CoA/Spec Sheet associated with SKU V1528762.

Note: BioReagent designation is for research use; it is not intended for clinical diagnostics or therapeutic applications.

Reaction and Applications

This section is interpreted for microbiological applications rather than chemical reactions.

• Intended use (general literature): Selective and differential cultivation of Vibrio species using chromogenic substrates that report on species‑characteristic enzyme activities, producing distinct colony colors to expedite presumptive identification.
• Application domains:
  • Environmental monitoring of marine and estuarine waters.
  • Food microbiology testing (e.g., seafood, shellfish surfaces, processing waters) for Vibrio contamination risk assessment in research settings.
  • Basic research on Vibrio physiology, enzyme expression profiles, and colony morphology.
• How chromogenic media work (general): The medium contains one or more chromogenic substrates linked to chromophores that are released upon hydrolysis by target enzymes (e.g., glycosidases, esterases). Released chromophores yield colored colonies; non‑target organisms are inhibited or remain uncolored due to selectivity.
• Practical notes (general):
  • Incubate plates at temperatures suitable for Vibrio spp. (commonly 35–37°C) and appropriate salinity; adjust NaCl if the formulation so indicates (item-specific details: Not specified for this item).
  • Include positive/negative control strains to verify selectivity and color development.
  • Confirm presumptive results by secondary tests (biochemical, MALDI, or molecular) since colony color alone is not definitive.

All item-specific preparation conditions and performance metrics are Not specified for this item; refer to CoA/Spec Sheet.

Reaction Conditions

Not applicable to chemical reactions. For microbiological use, general incubation conditions apply (e.g., temperature, time, salinity), but item‑specific parameters are Not specified for this item; refer to CoA/Spec Sheet. See Application Protocols for general literature guidance on cultivating Vibrio spp. on chromogenic media.

Safety and Handling

Safety details specific to this catalog item are not provided in the Product Data and should be taken from the SDS.

• GHS classification, signal word, pictograms, H‑statements: Not specified for this item; refer to SDS.
• General laboratory precautions (literature/general):
  • Use in a certified microbiological workspace appropriate to the biosafety level (BSL) of the organisms handled. The medium itself is not pathogenic, but cultures grown on it can be.
  • Wear appropriate PPE: lab coat, nitrile gloves, and splash-resistant eye protection. Avoid inhalation of powders and aerosols generated during weighing and pouring.
  • Avoid contamination and cross‑contamination; disinfect work surfaces before and after use. Decontaminate all waste via autoclaving or validated chemical disinfectants.
  • Incompatibilities (general): Strong oxidizers and acids/bases may degrade organic components and chromogens. Avoid excessive heat/light that can decompose chromogenic substrates.
• First‑aid overview (general):
  • Inhalation of dust: Move to fresh air; seek medical advice if irritation persists.
  • Skin/eye contact: Rinse with water for at least 15 minutes; remove contaminated clothing; obtain medical attention if irritation continues.
  • Ingestion: Rinse mouth; obtain medical advice.

Always defer to the product’s SDS and institutional biosafety policies for authoritative safety and waste-disposal guidance.

Solvent Selection

This product is prepared with water; organic solvent selection is not applicable.

• Primary solvent: High‑purity water (e.g., ASTM Type I/II) is recommended for reconstitution (literature). Water quality impacts clarity, sterility assurance, and chromogen background.
• Sterilization medium: If the formulation requires sterilization after dissolution, use moist‑heat autoclaving under validated conditions compatible with the chromogens (follow label/CoA). Some chromogens are heat‑labile and may require post-sterilization addition via sterile filtration (literature). Item-specific guidance: Not specified for this item; refer to CoA/Spec Sheet.
• Additives: Sodium chloride or selective supplements are sometimes adjusted for optimal recovery of halophilic Vibrio spp. Use sterile, pre‑validated stocks if supplementation is required (literature). Item-specific supplements: Not specified for this item.

Comparison (general):

• Distilled/deionized water: Adequate for routine media preparation where endotoxin and organics are controlled.
• Buffered water vs unbuffered: Buffered systems can stabilize pH during sterilization and incubation but must be compatible with chromogens.

For this medium, prioritize water quality, sterility, and light protection during preparation rather than organic solvent choice.

Storage and Reconstitution

• Storage conditions (from Product Data): Store at 2–8°C. Protect from moisture and excessive light to preserve chromogenic components (general best practice). Shipped on wet ice.
• Container management: Keep tightly closed in original packaging. Allow to equilibrate to room temperature in a desiccated environment before opening to minimize condensation.
• Reconstitution (general literature guidance):
  • Use high‑purity water. Follow the label/CoA for the exact grams per liter and any pH adjustment. Item‑specific preparation concentration, pH targets, and supplements are Not specified for this item; refer to CoA/Spec Sheet.
  • If required, sterilize by autoclaving under conditions compatible with chromogens; alternatively, add heat‑labile components after sterilization via sterile filtration.
  • Pour plates or prepare broths under aseptic conditions; let plates solidify and dry as needed. Store finished plates at 2–8°C in the dark and use within a time window validated by your lab (item-specific shelf life: Not specified).
• Freeze–thaw: Not applicable to dry medium; avoid freezing prepared plates unless validated, as freeze–thaw can crack agar and degrade chromogens.
• Stability/shelf life: Not specified for this item; refer to CoA/Spec Sheet and SDS for detailed guidance.

Structure and Identity

This product is a formulated, chromogenic culture medium designed for selective isolation and differentiation of Vibrio species. It is a complex mixture of organic and inorganic components and chromogenic substrates, not a single defined molecule.

• Item type: Complex microbiological medium (mixture), not a single chemical entity
• CAS, CID, InChIKey, SMILES: Not applicable for a formulated mixture (not provided in Product Data)
• Molecular formula / molecular weight: Not applicable (mixture)
• Structural features (general, literature): Typically contains nutrients (peptones/yeast extract), salts, buffers, selective agents, and chromogenic enzyme substrates that yield species‑distinct colony colors upon enzymatic cleavage. Exact formulation: Not specified for this item; refer to CoA/Spec Sheet.
• 2D “structure” description: As a blended powder or dehydrated base that, upon dissolution in water and solidification with agar (if included), forms a solid matrix providing nutrients, ionic strength, and chromogenic indicators for differential colony coloration.

Note: Because this is a mixture, conventional small‑molecule identifiers (SMILES, InChI) do not apply.

Synthetic Utility

Not applicable. This is a microbiological culture medium and is not used as a building block or reagent in organic synthesis. For relevant guidance, see the Application Protocols and Storage & Reconstitution sections.

Target Specificity

Antibody/biomolecule specificity does not apply. As a culture medium, its selectivity is toward Vibrio spp. through nutritive balance, inhibitory components, and chromogenic substrates (general principle). Exact selective agents and the spectrum of species differentiated by color are Not specified for this item; refer to CoA/Spec Sheet and validate with control strains.