Enterococcus Broth - BioReagent

Cat. No.: E1528720

CALIDAD & PUREZA BioReagent

Storage

Room temperature

Shipped In

Normal

Descripción general

For selective enrichment of Enterococcus

Especificaciones

Especificaciones y pureza

BioReagent

Condiciones de almacenamiento de almacenamiento

Room temperature

Enviado en

Normal

Grado

BioReagent

Product Line

Productos biológicos

Application Protocols

Item-specific, validated protocols: Not specified for this item; refer to the product label/CoA/Spec Sheet.

General workflow (literature guidance; adapt to your governing method)

1. Preparation

• Weigh the manufacturer‑specified amount of dehydrated medium and dissolve in the specified volume of purified water. Values are Not specified for this item; follow the label when available.
• Adjust pH if directed by the method. Sterilize (typically autoclave) unless the formulation specifies otherwise. Cool to the recommended dispensing temperature.

2. Inoculation

• For water testing (e.g., MPN): Inoculate measured sample volumes into tubes with Durham tubes or into multi‑well formats as specified. Include positive and negative controls. For membrane filtration workflows, add the membrane to a suitable volume of broth.

3. Incubation

• Incubate at the temperature/time specified by the method (literature ranges 35–41 °C, 18–48 h). Avoid temperature overshoot that can reduce recovery.

4. Interpretation

• Assess for growth/turbidity and any indicator reactions defined by the formulation/method. Record results and proceed to confirmation (streak to selective agar, biochemical tests, or PCR) as required.

5. QC

• Perform growth promotion/selectivity testing with relevant Enterococcus strains and non‑target organisms at receipt and at defined intervals.

Biological Roles

Applicability

• The product itself is not a biological macromolecule; it is a nutrient and selective environment. It does not have intrinsic biological roles beyond supporting or inhibiting microbial growth.

General background (literature)

• Enterococci are Gram‑positive, facultatively anaerobic bacteria inhabiting gastrointestinal tracts of humans and animals. They are widely employed as indicator organisms for fecal contamination in environmental monitoring.
• Selective media for Enterococcus spp. typically provide readily metabolizable carbohydrates, peptide nitrogen, minerals, and buffering capacity while incorporating inhibitors to suppress Gram‑negative rods and many non‑enterococcal Gram‑positives. Some formulations include dyes/indicators to visualize metabolic activity.
• In laboratory ecology, such broths enable enrichment from low initial concentrations, improving detection sensitivity before plating or molecular confirmation.

Practical notes

• Use recognized reference strains for performance qualification (e.g., representative Enterococcus faecalis and E. faecium) alongside non‑target organisms to document selectivity. Exact recommended strains and acceptance criteria are method‑dependent and not specified for this item; consult your governing standard and the product CoA/Spec Sheet.

Buffer Applications

Not a dedicated buffer system

• Enterococcus Broth is a complete/selective culture medium rather than a defined buffer. It is not typically used as a general biochemical buffering reagent.

General note (literature)

• Dehydrated media often include phosphate or other buffering salts to maintain near‑neutral pH during microbial growth; however, composition and target pH for this item are Not specified; refer to CoA/Spec Sheet if pH control is critical to your method.

Green Alternatives

Context

• Culture media are water‑based systems; environmental considerations focus on waste minimization, azide/biocide management, packaging, and energy for sterilization rather than solvent substitution.

Greener practice options (general)

• Composition awareness: If your method allows, select azide‑free or reduced‑hazard formulations to lower acute toxicity and hazardous waste burden. Note: Specific composition for this item is Not specified; refer to CoA/Spec Sheet.
• Energy efficiency: Use validated fractional autoclave loads and cycle optimization to reduce energy consumption. Prepare only the volumes needed per batch to minimize disposal of unused sterile media.
• Waste management: Segregate biologically contaminated waste for autoclaving prior to disposal. If media contain toxic inhibitors (e.g., azide in some literature formulations), collect liquid waste separately and treat according to institutional hazardous waste protocols; avoid discharge to metal plumbing.
• Packaging: Consider bulk sizes that reduce overall packaging per liter of medium while avoiding expiration before use. Reuse/repurpose autoclavable glassware to reduce single‑use plastics.

Trade‑offs

• Lower‑hazard selectivity systems may have narrower selectivity or shorter shelf life; always verify performance against the reference method requirements.

Pharmaceutical Uses

Scope

• No therapeutic or clinical claims. For research and laboratory use only (per Product Data: Research Use Note—For research use only).

Laboratory/formulation context (literature)

• Microbiological QC: Selective media for Enterococcus spp. can be used in non‑sterile product testing, environmental monitoring, and water system surveillance within pharmaceutical and bioprocess facilities, where appropriate and validated.
• Method alignment: Use in accordance with compendial or internal SOPs (e.g., harmonized pharmacopeial methods or Standard Methods for water testing) where enterococcal monitoring is required. The specific compendial status of this exact item is Not specified; refer to CoA/Spec Sheet.
• Qualification: Conduct growth promotion testing and suitability testing with relevant challenge organisms for each lot and use-case. Define acceptance criteria (e.g., recovery, selectivity) per the governing method.
• Documentation: Maintain batch records of reconstitution, sterilization parameters, and environmental conditions to support data integrity and audit readiness.

Physical Properties

Item-specific facts (from Product Data)

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Physical state: Dehydrated culture medium (general for such products); item-specific details Not specified for this item; refer to CoA/Spec Sheet.
• Density, melting point, boiling point, refractive index, pH (as prepared), solubility: Not specified for this item; refer to CoA/Spec Sheet.

General properties (literature)

• Form: Typically a free‑flowing, hygroscopic powder blend designed to dissolve in purified water to make a selective nutrient broth.
• Solubility: Intended to be water‑soluble/dispersible; final clarity and color after dissolution depend on formulation and may be clear to slightly opalescent.
• Typical prepared-medium pH: Often near neutral (approx. 6.8–7.4 at 25 °C), but exact set-point is formulation‑dependent. Always adjust to the specification provided on the label/CoA for this item (not provided here).
• Hygroscopicity: Dehydrated media can absorb atmospheric moisture; keep the container tightly closed to preserve performance characteristics.
• Thermal behavior: Dehydrated powders are non-melting blends; prepared media are usually heat‑sterilized by autoclaving unless heat‑labile supplements are specified (literature guidance).

Quality and Grades

Item-specific facts (from Product Data)

• Grade/Purity: BioReagent.

Interpretation and implications (general)

• BioReagent grade denotes suitability for biological and microbiological laboratory applications. While not equivalent to analytical or chromatography grades for chemical purity, BioReagent products are manufactured and handled to support reproducible biological performance (e.g., growth promotion/selectivity when used as directed).
• For culture media, quality is typically demonstrated via growth promotion testing (GPT), selectivity/suppression characteristics, sterility, and lot-to-lot consistency. Item‑specific acceptance criteria and any GPT organism panels should be verified on the CoA/Spec Sheet (not provided here).
• Stabilizers/indicators: Some Enterococcus media include pH indicators or redox dyes; others rely solely on selective agents and nutrient profiles. Presence/absence and concentrations are formulation‑specific—consult the label/CoA for this item.
• Practical note: Reproducible results depend on correct reconstitution (mass of powder per volume, water quality, pH adjustment) and sterilization method. Use the lot‑specific instructions provided with the product. Where UV absorbance, metal limits, or residual peroxide specifications are relevant to downstream analytics, these are typically not defined for culture media and are Not specified for this item; refer to CoA/Spec Sheet.

Reaction and Applications

Applicability

• This product is a microbiological culture medium; it is not used as a chemical reagent in synthetic reactions.

Applications (literature)

• Selective cultivation and enumeration of Enterococcus spp. from water, foods, environmental samples, and industrial hygiene/QC contexts. Typical use cases include most‑probable‑number (MPN) methods or membrane filtration enrichment prior to confirmatory testing.
• Indicator organism monitoring: Enterococci serve as fecal contamination indicators in recreational and marine waters per various standard methods. Enterococcus Broth provides nutrients and selectivity aligned with this purpose (exact selectivity mechanism depends on the formulation—consult the item’s CoA/Spec Sheet).
• Workflow integration: Commonly followed by plating on selective agar, confirmatory biochemical tests, or molecular assays (e.g., PCR) from enriched cultures.

Practical tips (general)

• Aseptic technique is essential to prevent false positives. Include positive controls (reference Enterococcus strains) and negative controls (non‑enterococcal organisms) to assess medium selectivity and performance.
• Validate incubation temperature and time (literature ranges often 35–41 °C for 18–48 h) against the governing method you follow; do not assume these values for this item without checking its instructions for use.

Reaction Conditions

Not applicable to chemical reactions

• This product is not used in chemical synthesis. However, incubation conditions are critical for its intended microbiological function.

General incubation guidance (literature)

• Temperature/time: Common enterococcal enrichment protocols incubate at 35–41 °C for 18–48 h, depending on the method and sample load. Do not rely on these values for this item; follow the label/CoA for exact directions when provided.
• Atmosphere: Enterococci are facultatively anaerobic; incubation is typically in ambient air. Some methods may specify increased CO2 or anaerobiosis for particular studies.
• Inoculation: Use membrane filtrates, measured volumes of water samples, or homogenized food matrices as directed by the test method. Include appropriate positive/negative controls.
• Readout: Turbidity, color change, or growth indicators may be used, depending on formulation. For confirmation, subculture to selective agar or perform biochemical/molecular tests.

Safety and Handling

Item-specific facts (from Product Data)

• GHS classification, signal word, hazard statements, pictograms: Not specified for this item; refer to the product SDS.
• Storage conditions: Room temperature (from Product Data). Ship at: Normal conditions.

General safety guidance (literature)

• Complex media may contain peptones, salts, carbohydrates, and selective agents. Some Enterococcus media formulations in the literature include toxic inhibitors (e.g., sodium azide) or bile salts. Because exact composition for this item is not provided here, handle as a laboratory chemical of unknown hazards.
• Recommended PPE: laboratory coat, nitrile gloves, and safety glasses. Avoid inhalation of dust; handle powders in a fume hood or with local exhaust if dusting occurs.
• Incompatibilities (if azide or reactive salts are present in a given formulation): azides can react with acids to form explosive hydrazoic acid vapor and with metals to form shock‑sensitive heavy‑metal azides. Do not allow solutions to contact copper/lead plumbing; collect waste in compatible plastic.
• First aid (overview; defer to SDS): if inhaled, move to fresh air; if skin or eye contact occurs, rinse with water for at least 15 minutes; if ingested, rinse mouth and seek medical attention. Provide SDS to responders.
• Microbiological precautions: use aseptic technique to avoid unintended cultivation and exposure. Decontaminate spills and waste by appropriate disinfectants or autoclaving as required by your biosafety procedures.

Solvent Selection

Applicability

• This product is a dehydrated culture medium intended to be prepared with water. Organic solvent selection is not applicable.

General guidance (literature)

• Water quality: Use freshly prepared, deionized/distilled water meeting microbiological media standards (e.g., resistivity ≥ 10–18 MΩ·cm, low TOC, endotoxin‑free where required). High hardness, residual chlorine, or organics can impair selectivity/growth.
• Reconstitution: Dissolve the specified mass of powder in the specified volume of water (values Not specified for this item; refer to CoA/Spec Sheet). Mix thoroughly to eliminate clumps and ensure uniform dispersion before pH adjustment/sterilization per label.
• Sterilization: Unless otherwise stated for the specific formulation, sterilize by autoclaving at the parameters indicated on the product label/CoA. Heat‑labile supplements (if any) are added aseptically after cooling.
• Comparison to alternatives: Where organic co‑solvents are contemplated (e.g., for supplement stock solutions), ensure compatibility with enterococcal growth and that final solvent concentrations are non‑inhibitory (commonly ≤1% v/v; literature guidance). Always validate with controls.

Storage and Reconstitution

Item-specific facts (from Product Data)

• Storage conditions: Room temperature.
• Shipping: Normal conditions.

Reconstitution (item-specific parameters): Not specified for this item; refer to CoA/Spec Sheet and product label for mass‑per‑liter, target pH, sterilization method, and any supplements.

General guidance (literature)

• Storage: Keep container tightly closed in a cool, dry place. Protect from humidity and cross‑contamination. Reseal promptly after each use; consider desiccant in secondary containment if ambient humidity is high.
• Shelf life: Use within the labeled expiry date. Avoid using if caking, discoloration, or atypical odor is observed.
• Water: Use high‑purity water suitable for microbiological media. Mix thoroughly to ensure homogeneity before pH verification/adjustment if required.
• Sterilization: If applicable to the formulation, autoclave per the parameters stated on the label. Add heat‑labile supplements aseptically after cooling to 45–55 °C, as directed by your method.
• Prepared media: Store at 2–8 °C if not used immediately, and use within the method‑recommended holding time to maintain performance. Avoid repeated warming/cooling cycles.

Use limitation

• For research use only (from Product Data). Not for human or animal therapeutic use.

Structure and Identity

Item-specific facts (from Product Data)

• Product: Enterococcus Broth (SKU: E1528720)
• 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 / InChIKey: Not applicable to complex, undefined media; Not specified for this item; refer to CoA/Spec Sheet.

General description (literature)

• Enterococcus Broth is a complex, multi‑component, dehydrated culture medium formulated for the selective growth and detection/enumeration of Enterococcus spp. from environmental, food, or QC samples. As a mixture of organic and inorganic nutrients and selective agents, it does not possess a single defined molecular structure.
• Structural features (conceptual): typically includes carbon/energy sources, nitrogen/peptone/yeast derivatives, buffering salts, and selective agents to suppress non-target flora. Exact qualitative/quantitative composition varies by formulation and manufacturer (consult the product CoA/Spec Sheet for this item).

Synthetic Utility

Not applicable

• Enterococcus Broth is not a chemical building block or reagent for synthetic organic/organometallic chemistry. It provides no direct synthetic utility. For relevant information, see Reaction & Applications and Application Protocols sections focusing on microbiological use.

Target Specificity

Item-specific facts (from Product Data)

• No organism panel, selectivity agents, or performance claims are provided. Not specified for this item; refer to CoA/Spec Sheet.

General information (literature)

• Enterococcus broths are designed to be selective and differential for Enterococcus spp. Selectivity mechanisms in published formulations include inhibitors (e.g., bile salts, dyes, or azide) that suppress Gram-negative bacteria and many non-target Gram-positives while allowing enterococci to grow.
• Specificity varies with formulation and incubation parameters; validation with reference strains is required for your method and matrix.