Sugar Fermentation Medium Base - BioReagent

Cat. No.: S1528604

QUALITÄT & REINHEIT BioReagent

Storage

Room temperature

Shipped In

Normal

Übersicht

Bromothymol blue as indicator, carbon source-free, for sugar fermentation test (GB, Pharmacopoeia)

Spezifikationen

Spezifikationen & Reinheit

BioReagent

Storage

Room temperature

Verschickt in

Normal

Note

BioReagent

Product Line

Biologische Produkte

Application Protocols

General laboratory workflow for carbohydrate fermentation testing (literature/general; adapt per institutional SOPs):

1. Preparation

• Dissolve the specified amount of Sugar Fermentation Medium Base in purified water (item-specific amount not specified for this item; refer to CoA/Spec Sheet). Mix until fully dissolved; adjust pH near neutral if required.
• Dispense into culture tubes with inverted Durham tubes if gas detection is desired.
• Sterilize by autoclaving (121 °C, ~15 min). Allow to cool to ~45–50 °C.

2. Supplementation

• Aseptically add filter-sterilized carbohydrate solution to achieve the desired final concentration (commonly 0.5–1.0% w/v, literature/general). Mix gently to avoid introducing bubbles into Durham tubes.

3. Inoculation and Incubation

• Inoculate each tube with a standardized inoculum of the test organism. Include positive and negative control strains.
• Incubate at the organism’s recommended temperature and atmosphere for 18–48 h (literature/general).

4. Interpretation

• Acid production: color shift of the indicator (e.g., phenol red: red → yellow under acidic conditions).
• Gas production: bubble within Durham tube.
• Record results promptly; prolonged incubation can yield re-alkalinization in some taxa.

This protocol is provided for research guidance only; optimize and validate locally.

Biological Roles

This medium base is designed to probe microbial carbohydrate metabolism rather than exerting a biological effect per se.

• Metabolic context (literature/general):
  • Fermentation pathways (e.g., Embden–Meyerhof–Parnas glycolysis followed by mixed-acid or lactic fermentation) convert sugars to organic acids and sometimes gas (CO2/H2), lowering pH.
  • Indicators such as phenol red report pH change (yellow at acidic pH, red/pink at neutral to alkaline), correlating with fermentative activity.
  • Durham tubes can capture evolved gas as a secondary readout.
• Nutritional role of base components:
  • Peptones/extracts provide amino acids, peptides, and growth factors that support basal growth to enable metabolism of the supplied sugar.
  • Buffers maintain an initial near-neutral pH to permit detection of acidification without immediate acid inhibition.
• Use in systems biology: Enables mapping of carbon source utilization profiles across strains, informing metabolic models and phenotype microarrays in research settings.

No clinical or diagnostic claims are made; for research use only (per Product Data).

Buffer Applications

This product is not intended as a stand-alone buffer system. However, sugar fermentation media typically incorporate buffering salts to stabilize starting pH (literature/general).

• Buffer context: The buffering capacity is tuned to allow measurable pH drops upon acid production while resisting large non-specific pH drifts from minor metabolic byproducts.
• Practical notes:
  • If excessive acidification inhibits growth before readout, increase buffering capacity modestly or shorten incubation (research optimization).
  • If fermentation signals are weak, reduce buffer strength slightly (within safe growth-supporting limits) or increase indicator sensitivity.

For dedicated buffering needs (electrophoresis, enzyme assays), use defined buffer systems (e.g., phosphate, MOPS, HEPES) rather than complex media.

Green Alternatives

As an aqueous microbiological medium base, environmental considerations focus on resource efficiency and waste minimization rather than solvent substitution.

• Greener practice options (literature/general):

  • Use tap-water prefiltration followed by deionization/RO to reduce bottled water consumption, where validated.
  • Prepare only the volume needed; avoid disposals of unused sterile medium.
  • Prefer reusable glassware (Durham tubes, culture tubes) over single-use plastics when biosafety and workflow permit.
  • Autoclave energy optimization: consolidate sterilization cycles and use validated shorter liquid cycles where acceptable.
  • Disinfectants: choose lower-impact agents (e.g., peracetic acid/hydrogen peroxide systems) for post-use decontamination when compatible with your facility policies.

• Comparative note: Unlike organic-solvent-based assays, sugar fermentation tests use water as the solvent and typically benign inorganic buffers/indicators, reducing hazardous waste generation (literature/general).

Pharmaceutical Uses

Not typically used as a pharmaceutical excipient or in drug product formulations.

• Relevant industry role (literature/general): In pharmaceutical microbiology and industrial QC (research/manufacturing support contexts), carbohydrate fermentation media may be used in training and non-clinical research for characterizing lab strains or environmental isolates. Any use in regulated testing requires method validation and appropriate compendial alignment where applicable.

No therapeutic or clinical diagnostic claims are made for this product. It is supplied strictly for research use only (per Product Data).

Physical Properties

As a dehydrated medium base (mixture), definitive single-compound properties do not apply.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• pH (prepared medium): Typical prepared sugar fermentation broths are adjusted near neutral (e.g., ~7.2 ± 0.2 at 25 °C before sterilization; literature/general). Item-specific pH not specified for this item; refer to CoA/Spec Sheet.
• Solubility: Freely soluble in purified water to form a clear to slightly opalescent solution when properly dissolved (literature/general). Item-specific behavior: Not specified for this item; refer to CoA/Spec Sheet.
• Density, BP, MP, nD, logP, pKa: Not applicable/Not specified for this item; refer to CoA/Spec Sheet.
• Osmolality (prepared): Depends on concentration and carbohydrate addition (literature/general). Not specified for this item; refer to CoA/Spec Sheet.

Prepared-media properties depend on the exact mass of powder per liter, carbohydrate type/concentration, and sterilization method. Always verify with an in-house QC test (clarity, color, and pH) after preparation.

Quality and Grades

• Grade for this item: BioReagent (from Product Data).
• BioReagent meaning (general): Suitable for life-science research applications with controlled bioburden and performance characteristics appropriate for culture media preparation. Not intended for clinical/diagnostic use unless validated by the end user (research use only).
• Medium performance considerations:
  • Growth support and fermentation-detection capability should be verified with positive/negative control strains (e.g., known fermenters vs. non-fermenters; literature/general).
  • Lot-to-lot consistency is important for indicator response (color change), buffering, and nutrient availability.
• Stabilizers/preservatives: Not specified for this item; refer to CoA/Spec Sheet.
• UV/metal/impurity limits: Not specified for this item; refer to CoA/Spec Sheet.
• Documentation: For critical applications, retain the lot CoA/Spec Sheet and SDS; perform in-house QC (appearance, pH of 1× medium, clarity after sterilization, control organism response).

Reaction and Applications

Applicability is microbiological rather than synthetic chemistry.

• Primary application (literature/general): Qualitative detection of carbohydrate fermentation by microorganisms via pH change (acid production) and, when used with Durham tubes, gas production. Typical indicator: phenol red (yellow under acidic conditions). Buffering moderates pH but permits detectable shifts.
• Use cases:
  • Characterizing metabolic profiles of environmental, food, or laboratory isolates (research contexts only).
  • Teaching laboratories: demonstrating fermentation of glucose, lactose, sucrose, mannitol, etc.
  • Screening strain variants for sugar utilization pathways under controlled conditions.
• Practical tips:
  • Prepare base, sterilize, and aseptically add filter-sterilized carbohydrates to desired final concentration to avoid sugar caramelization (literature/general).
  • Include positive and negative control strains each run to benchmark color thresholds and gas capture.
  • Incubate under appropriate atmosphere (aerobic/anaerobic/microaerophilic) matching organism requirements; indicator response can vary with oxygen tension.
  • Avoid over-incubation of weak fermenters that could re-alkalinize via peptone utilization.

Note: This product is not intended for chemical reactions such as synthesis or catalysis.

Reaction Conditions

Chemical reaction conditions are not applicable. The relevant conditions relate to microbial cultivation and assay readout (literature/general guidance):

• Reconstitution: Dissolve the recommended mass of medium base in purified water. Item-specific concentration is not specified for this item; refer to CoA/Spec Sheet.
• Sterilization: Autoclave at 121 °C for ~15 minutes for liquids, unless heat-labile supplements will be added post-sterilization via filtration.
• Carbohydrate addition: Add filter-sterilized carbohydrate (e.g., glucose, lactose, sucrose) to the sterile base to the desired final concentration to avoid thermal degradation; typical ranges are 0.5–1.0% w/v (literature/general).
• Indicator/Durham tubes: If using gas detection, place sterile Durham tubes inverted before sterilization; verify no trapped air post-cooling.
• Inoculation and incubation: Inoculate aseptically; incubate typically 18–48 h at organism-appropriate temperature (e.g., 25–37 °C), atmosphere, and agitation if required (literature/general).
• Readout: Observe color change (acid) and gas bubble formation. Include positive/negative controls each run.

Always validate conditions with your strains and follow institutional biosafety procedures.

Safety and Handling

• GHS classification, signal word, pictograms, H-statements: Not specified for this item; refer to SDS.
• Primary hazards (general for dehydrated media): Low acute toxicity expected; dust may cause mechanical irritation to eyes/respiratory tract. Avoid inhalation of dust and contact with eyes (literature/general). Some indicator dyes, if present, can be harmful if ingested; handle as laboratory chemical.
• PPE: Lab coat, safety glasses, and suitable gloves. Use a dust mask/respirator if dust generation cannot be controlled (per institutional risk assessment).
• Handling notes:
  • Minimize dust; open containers in a fume hood or well-ventilated area.
  • Avoid microbial contamination of the dry powder and prepared medium.
  • When preparing with heat/autoclave, use heat-resistant vessels and allow pressure to fully release before opening.
• Incompatibilities: Strong oxidizers or reactive chemicals are not typically relevant to use; avoid mixing with biocides unless intentionally supplementing for selectivity (literature/general).
• First aid (overview): Rinse eyes with water for several minutes if exposed; wash skin with soap and water; move to fresh air if inhaled; rinse mouth if ingested. Seek medical attention as needed. Defer to SDS for authoritative instructions.
• Waste: Autoclave or chemically disinfect spent cultures before disposal per biosafety and institutional guidelines.

Solvent Selection

This product is a culture medium base and is not used as an organic solvent. The relevant solvent for reconstitution is purified water.

• Aqueous use (literature/general):
  • Reconstitute in deionized or distilled water. High-purity water minimizes background and preserves indicator performance.
  • The medium is typically fully water-soluble at the recommended concentration.
• When to choose this base vs. alternatives: Select this base for qualitative assessment of microbial carbohydrate fermentation (acid/gas formation) where you supply the desired sugar(s). Use carbohydrate-specific broths or differential media when a pre-formulated option is preferred.
• Comparison (literature/general):
  • Sugar Fermentation Medium Base: flexible; user adds defined carbohydrate and any supplements.
  • Ready-made carbohydrate broths: convenient; less flexible for custom panels; potentially higher cost per test.

No organic solvent selection is applicable for this item.

Storage and Reconstitution

• Storage conditions (as supplied): Room temperature (from Product Data). Keep container tightly closed in a dry place. Protect from moisture and contamination.
• Shipping: Shipped at ambient temperature (from Product Data: Normal).
• Shelf life: Not specified for this item; refer to CoA/Spec Sheet.
• Reconstitution (general literature guidance):
  • Use freshly produced deionized/distilled water; measure and dissolve the recommended mass of powder per liter (item-specific amount not specified; refer to CoA/Spec Sheet/label).
  • Heat with stirring if needed to aid dissolution; avoid overheating if indicator/sugars are present.
  • Sterilize by autoclaving (121 °C, ~15 min) unless otherwise directed. Cool to ~45–50 °C before adding heat-labile supplements (e.g., carbohydrates, antibiotics) via sterile filtration.
  • Dispense aseptically. For Durham tubes, ensure they remain filled post-cooling without trapped headspace.
• Storage of prepared medium: Typically store at 2–8 °C, protected from light if indicator present; use promptly (literature/general). Item-specific guidance not specified for this item; refer to CoA/Spec Sheet.

For research use only (from Product Data). Always consult the SDS and lot-specific documentation for definitive instructions.

Structure and Identity

Item type: Dehydrated culture medium base (mixture), intended for microbial carbohydrate fermentation testing.

• Composition nature: Complex, undefined mixture typically comprising peptone/tryptone, yeast or beef extract, buffering salts, and a pH indicator in the base; fermentable carbohydrate is usually added separately per test (literature/general).
• Molecular formula / MW: Not applicable for a mixture. Not specified for this item; refer to CoA/Spec Sheet.
• SMILES / InChIKey: Not applicable (mixture). Not specified for this item; refer to CoA/Spec Sheet.
• Structural features (descriptive): Heterogeneous blend of amino-nitrogen sources, vitamins, minerals, and buffering components designed to support growth and reveal acid/gas production from added sugars (literature/general).
• Product identity references:
  • SKU: S1528604
  • Product Name: Sugar Fermentation Medium Base
  • Grade: BioReagent
  • Category: Life Science reagents (research use only)

Note: This is not a single, defined chemical and thus lacks single-compound identifiers.

Synthetic Utility

Not applicable. This is a microbiological culture medium base and is not used as a synthetic reagent, catalyst, or building block.

• For chemical synthesis applications, refer instead to defined reagents and solvents appropriate to the target transformation.

Target Specificity

Not applicable. This product is not an antibody, probe, or targeted binding reagent. It is a general-purpose culture medium base used to assess fermentation of user-supplied carbohydrates by diverse microorganisms.

Häufig gestellte Fragen

How should this product be stored?

Store at room temperature.