Dextrose Starch Agar – 500 gram Packs

Dextrose Starch Agar is a dehydrated microbiological culture medium used for cultivating selected microorganisms under controlled laboratory conditions. Depending on the formulation, it contains dextrose (glucose), soluble starch, peptone or other nutrient ingredients, mineral salts, and agar as a solidifying agent. Dextrose provides an accessible carbohydrate source, while soluble starch contributes to the medium’s nutritional composition. Peptones supply nitrogen-containing nutrients, and agar provides a solid surface for microbial growth. Certain formulations are suitable for cultivating fastidious bacteria, including selected Neisseria species, when used with the appropriate preparation and incubation procedures. This medium is relevant to microbiology education, microbial cultivation studies, and research investigations requiring a compatible culture medium. Its exact composition and intended application should be confirmed before use. Lab Wale offers Dextrose Starch Agar in 500 gram packs for suitable educational, institutional, and research laboratory requirements.

Product Specifications

Key Features of Dextrose Starch Agar

• Multi-component culture medium: Common formulations combine dextrose, soluble starch, nutrient ingredients, mineral salts, and agar to support selected microbiological applications.
• Carbohydrate-based nutrition: Dextrose supplies a readily available carbohydrate source, while soluble starch contributes additional carbohydrate material.
• Solid growth surface: Agar enables the preparation of solid media for inoculation and observation of microbial growth under appropriate conditions.
• Formulation-dependent suitability: Nutrient composition, final pH, preparation requirements, and supported organisms depend on the specific manufacturer’s formulation.
• Educational and research utility: Suitable formulations support supervised microbiology practicals and selected investigations involving microbial cultivation and culture-medium performance.

Laboratory Applications of Dextrose Starch Agar

• Microbiology teaching practicals: Used in supervised college and university sessions to demonstrate culture-medium preparation, aseptic handling, and microbial growth.
• Cultivation of selected bacteria: Appropriate formulations can support the growth of certain fastidious microorganisms when their nutritional and environmental requirements are met.
• Microbial growth investigations: Used in selected research procedures examining microbial growth under controlled laboratory conditions.
• Antimicrobial susceptibility investigations: Certain validated methods may use compatible Dextrose Starch Agar formulations for specialised antimicrobial testing; the method must specify the appropriate medium and conditions.
• Culture preparation training: Supports instruction in reconstituting dehydrated media, dissolving ingredients, sterilisation, and aseptic dispensing according to the manufacturer’s procedure.

Why Choose Lab Wale to Buy Dextrose Starch Agar

Lab Wale provides a convenient sourcing option for laboratory chemicals, microbiological media, and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Dextrose Starch Agar, consider the intended microorganisms, formulation, preparation instructions, and required grade. Reviewing available product specifications and relevant safety information helps laboratories select an appropriate medium for their procedures. The 500 gram pack offers a practical purchasing format for suitable institutional and research requirements, subject to the product’s stated specifications and availability.

Frequently Asked Questions About Dextrose Starch Agar

What is Dextrose Starch Agar used for in laboratories?

Dextrose Starch Agar is used to cultivate selected microorganisms and support microbiological investigations. Certain formulations are suitable for fastidious bacteria when prepared and incubated under appropriate conditions. The medium’s intended use depends on its composition, the organism being studied, and the requirements of the validated laboratory method.

What are the main ingredients of Dextrose Starch Agar?

Depending on the formulation, the medium may contain dextrose, soluble starch, peptones, mineral salts, and agar. Dextrose provides a carbohydrate source, starch contributes additional carbohydrate material, nutrient ingredients support growth, and agar solidifies the medium. Exact ingredient proportions vary by manufacturer.

Does Dextrose Starch Agar have a molecular formula or CAS number?

No single molecular formula, empirical formula, molecular weight, or CAS Registry Number describes the complete medium because it contains multiple chemical ingredients. Individual components have their own chemical identifiers. The product should therefore be treated as a formulated microbiological mixture rather than a single pure compound.

How is Dextrose Starch Agar prepared for laboratory use?

Preparation depends on the supplied formulation. Typically, the specified quantity of dehydrated medium is suspended in purified water, heated until dissolved, and sterilised using the prescribed procedure when required. Follow the manufacturer’s instructions for preparation, dispensing, and incubation rather than applying a generic protocol to every formulation.

How should Dextrose Starch Agar be stored and handled safely?

Store the dehydrated powder in a tightly closed container in a dry location, protected from moisture, excessive heat, and contamination. Wear suitable laboratory clothing, gloves, and eye protection, and minimise airborne dust. Handle inoculated media with appropriate biosafety precautions and decontaminate used cultures and materials according to institutional procedures before disposal.

Storage Conditions for Dextrose Starch Agar

Store Dextrose Starch Agar in its original, tightly closed container in a cool, dry, well-ventilated location protected from moisture, excessive heat, and contamination. Follow the storage temperature and shelf-life recommendations specified for the supplied formulation. Close the container promptly after dispensing and keep it properly labelled to help preserve the dehydrated medium’s intended properties.

Precautions for Handling Dextrose Starch Agar

Review the relevant Safety Data Sheet and preparation instructions before use. Wear a laboratory coat, suitable gloves, and safety goggles, and avoid inhaling airborne powder during weighing or transfer. Use appropriate equipment for heating and sterilisation, and follow aseptic techniques when dispensing the medium. Handle inoculated cultures using suitable biosafety controls, and decontaminate used media and contaminated materials through validated institutional procedures before disposal.