Potassium Gluconate
Potassium Gluconate, commonly identified as E577, is the potassium salt of gluconic acid and is used in food and nutrition systems as a potassium mineral source, sequestrant, buffering ingredient and formulation support material where permitted.
For industrial manufacturers, Potassium Gluconate is often selected when a potassium source with good water solubility, mild sensory profile and gluconate functionality is required. It should be reviewed for potassium contribution, assay, solubility, taste impact, pH behaviour, mineral interactions, labelling status, nutrition positioning and destination-market compliance.
Product identity
| Product name | Potassium Gluconate |
|---|---|
| Common names | Potassium D-gluconate, gluconic acid potassium salt, potassium salt of gluconic acid |
| Category | Acidulants & Acidity Regulators |
| Function | Potassium mineral source, sequestrant, buffering ingredient, acidity-regulation support and formulation stabilizer where permitted |
| E / INS number | E577 / INS 577 |
| CAS / identity | 299-27-4 |
| Chemical formula | C6H11KO7 |
| Approximate molecular weight | 234.25 g/mol |
| Approximate potassium contribution | About 16.7% potassium by mass; final calculation should follow the supplier assay and buyer specification |
| Typical physical form | White to off-white powder, crystalline powder, granule or solution grade depending on supplier and specification |
| Functional character | Water-soluble organic potassium salt with mineral contribution, mild buffering behaviour and gluconate-based metal-complexing activity |
| Handling focus | Moisture protection, clean handling, dust control, particle-size consistency and packaging integrity |
Application fit
Potential use areas may include the following when permitted by local food law, finished-product specification and nutrition-labelling rules:
- Beverages, electrolyte drinks and mineral-fortified liquid systems
- Nutrition powders, premixes and fortified dry blends
- Dairy systems, dairy alternatives and reconstitution products
- Sauces, dressings, condiments and savoury formulations
- Confectionery, gummies and functional sweet systems
- Bakery, cereal and grain-based enrichment applications
- Infant, clinical, medical and special dietary foods where specifically authorized
- Potassium salt blends and sodium-reduction formulation support
Technical purchasing notes
When reviewing Potassium Gluconate, compare the supplier specification against the intended food application, potassium target, process conditions, pH range, sensory requirements, label expectations and destination-market rules. A technically complete inquiry should include the target grade, assay, potassium content, physical form, particle size if relevant, packaging size, quantity, destination country, delivery term and document requirements.
Potassium Gluconate is frequently evaluated for mineral nutrition and formulation balance rather than for a single technological function. Buyers should therefore review the material as both a food additive and a nutrient-related ingredient. Key comparison points include assay basis, potassium contribution, gluconate content, solubility, taste impact, hygroscopicity, heavy metals, microbiological quality, particle-size distribution, bulk density, caking tendency and compatibility with acids, flavours, vitamins, sweeteners and other minerals.
Industrial formulation considerations
Potassium enrichment and dosage design
Potassium Gluconate is often chosen when a formulation requires potassium contribution with a comparatively mild mineral profile. Formulators should calculate potassium contribution from the exact assay, validate the target finished-product potassium level and confirm whether the ingredient is declared as an additive, mineral source or nutrient compound in the destination market.
- Confirm whether the specification expresses content as potassium gluconate, potassium or dry basis assay.
- Calculate potassium contribution using supplier assay and moisture data.
- Validate dosage through pilot production and finished-product analysis when potassium declaration is required.
- Review nutrition-claim thresholds, maximum fortification limits and serving-size calculations.
- Assess sodium-reduction positioning carefully, especially where potassium warning statements may apply.
Buffering, sequestration and stability
The gluconate ion can support formulation stability by interacting with metal ions and contributing to buffering behaviour in certain systems. This may help reduce metal-catalysed quality changes, but performance depends strongly on pH, concentration, process temperature, water activity and the complete mineral profile.
- Review compatibility with calcium, magnesium, iron, zinc and other minerals in fortified systems.
- Check for precipitation, haze or sediment in beverages and reconstituted products.
- Evaluate flavour interaction with acids, high-intensity sweeteners, flavours and salt substitutes.
- Confirm pH drift after processing and during shelf-life testing.
- Use stability trials for products with vitamins, colours, proteins or sensitive flavour systems.
Specification parameters to compare
| Parameter | Why it matters for food manufacturers |
|---|---|
| Assay / active content | Confirms the potassium gluconate content used for dosage, cost-in-use comparison, batch release and label calculation. |
| Potassium content | Critical for mineral fortification, electrolyte positioning, sodium-reduction systems and nutrition declaration. |
| Identity testing | Verifies that the supplied material matches declared Potassium Gluconate identity and is not another potassium salt. |
| Moisture / loss on drying | Important for assay calculation, flowability, caking risk, shelf life and premix performance. |
| pH of solution | Supports formulation review for beverages, sauces, dairy systems and mineral premixes. |
| Solubility and clarity | Important for beverages, syrups, reconstitution systems and liquid concentrates. |
| Reducing substances | Relevant for quality control and potential interaction with colour, flavour and heat-processed systems. |
| Heavy metals / elemental impurities | Required for food safety review, customer specifications and destination-market compliance. |
| Microbiological profile | Important for dry blends, infant or medical nutrition systems and low-heat applications. |
| Particle size / bulk density | Affects blending uniformity, dissolution rate, dusting, segregation and packaging efficiency. |
| Packaging material | Protects against moisture uptake, contamination, odour pickup and transport damage. |
| Shelf life and storage conditions | Supports inventory planning, QA release and long-term functional performance. |
Food manufacturing applications
Beverages and electrolyte systems
Potassium Gluconate may be evaluated in functional beverages, hydration drinks, electrolyte blends, mineral waters and beverage concentrates. Formulation review should include potassium target, solubility, pH, clarity, flavour balance, sweetness system, acid system, preservation approach and packaging stability.
Nutrition powders and premixes
In powdered nutrition systems, Potassium Gluconate can contribute potassium while supporting dry-blend compatibility. Premix manufacturers should review particle size, bulk density, segregation risk, hygroscopicity, carrier compatibility, mineral balance and finished-product nutrient verification.
Dairy and dairy-alternative systems
For dairy beverages, protein drinks and plant-based alternatives, potassium salts can influence mineral balance, pH, heat stability, taste and protein behaviour. Potassium Gluconate should be trialled under the actual process conditions, including heat treatment, homogenization and shelf-life storage.
Sauces, dressings and savoury products
Potassium Gluconate may be considered in savoury systems where mineral balance, acidity control and mild potassium contribution are relevant. Formulators should test taste, salt perception, acid balance, viscosity, preservative performance and label positioning.
Confectionery and gummies
In gummies, chews and confectionery systems, Potassium Gluconate can be used in mineral-fortified concepts where permitted. Application work should check solubility, crystallization risk, taste masking, gel texture, pH and interaction with hydrocolloids, acids and colours.
Special nutrition and medical foods
Infant, clinical, medical and special dietary foods require stricter specification control, validated dosage and regulatory review. Buyers should request full documentation and confirm permitted potassium compounds, maximum levels, nutrient claims and label wording before approval.
Process engineering and plant handling
Potassium Gluconate is generally easier to handle than caustic potassium salts, but industrial use still requires controls for dust, moisture, weighing accuracy and cross-contamination. Solid grades should be stored in sealed packaging, protected from humidity and transferred through clean handling systems. Liquid or solution grades should be checked for concentration, microbial control, packaging compatibility and dosing-pump calibration.
- Use calibrated scales or automated dosing systems for mineral-fortified products.
- Control dust during bag opening, tipping and premix blending.
- Protect open bags from humidity to reduce caking and flowability problems.
- Confirm complete dissolution before filtration, filling or thermal processing in beverage systems.
- Validate premix uniformity through sampling and analytical verification.
- Separate allergen, mineral and micro-ingredient handling areas according to the plant food-safety plan.
- Apply FIFO or FEFO inventory control and retain batch documentation for traceability.
Quality, safety and compliance checklist
- Confirm food-grade status and the exact standard referenced by the supplier.
- Request assay, potassium content, moisture, pH, solubility, heavy metals and microbiological limits.
- Check whether assay and potassium contribution are expressed on an as-is, dried or anhydrous basis.
- Confirm whether the material is suitable for additive use, nutrient fortification, premix use or supplement-style applications.
- Verify destination-market rules for E577 / INS 577, potassium addition, nutrition claims and label wording.
- Review interaction with other minerals, especially calcium, magnesium, iron and zinc systems.
- Validate final-product potassium content when declared on the nutrition panel.
- Assess sensory impact, including mineral taste, bitterness, salt balance and aftertaste.
- Verify lot traceability from manufacturer to exporter, including batch number, production date and expiry or retest date.
- Request allergen, GMO, vegan, halal, kosher and irradiation statements when required by the buyer or destination market.
- Do not approve potassium claims, electrolyte claims or health-related positioning without local regulatory review.
Documents to request
- Product specification or technical data sheet
- Certificate of analysis for the offered batch or lot
- Safety data sheet where applicable
- Food-grade declaration and intended-use statement
- Country of origin, manufacturer statement and lot traceability declaration
- Shelf-life, retest period and storage-condition statement
- Potassium-content or mineral-contribution declaration
- Heavy metals, elemental impurities and contaminant declaration
- Microbiological specification for nutrition-sensitive applications
- Allergen, GMO, vegan, halal, kosher and irradiation statements when required
- Packaging specification, net weight, pallet pattern and container-loading information
- Market-specific declarations required by the destination country or buyer quality system
Packaging, handling and storage
Potassium Gluconate should be stored in tightly closed original packaging in a dry, clean and well-ventilated warehouse. The material should be protected from moisture, strong odours, contamination and unnecessary exposure to air. Opened packaging should be resealed promptly and identified with the lot number, opening date and remaining quantity.
For export shipments, buyers should confirm net weight, packaging type, inner liner, bag or drum specification, pallet configuration, label language, batch marking, container-loading details, moisture protection and whether the receiving warehouse can maintain dry storage conditions. For beverage or nutrition applications, packaging cleanliness and lot traceability are especially important for QA approval.
Quotation and sourcing variables
| Inquiry item | Information to provide |
|---|---|
| Target grade | Food grade, E577 / INS 577, customer specification, nutrition grade or other required standard. |
| Physical form | Powder, crystalline powder, granule, premix-ready form or solution grade. |
| Assay / potassium basis | Required potassium gluconate assay, potassium content and calculation basis. |
| Application | Beverage, nutrition powder, dairy system, sauce, confectionery, premix, special nutrition or other use. |
| Functional target | Potassium enrichment, sequestration, buffering, electrolyte balance, sodium-reduction support or pH control. |
| Quantity | Trial quantity, first commercial order, annual demand and shipment frequency. |
| Destination | Country, port, delivery address, Incoterms preference and import documentation requirements. |
| Packaging | Bag, carton, drum, liner, net weight, pallet requirement and container-loading preference. |
| Documentation | COA, TDS, SDS, food-grade declaration, potassium declaration, origin, shelf life, allergen/GMO/halal/kosher statements and market-specific documents. |
How to request this product
Send the product name, target grade or reference specification, required assay or potassium content, physical form, intended application, target potassium level if applicable, quantity, destination country, preferred packaging, delivery term, expected shipment date and documentation checklist. If you already purchase Potassium Gluconate, attach your current specification, certificate of analysis, label requirement or formulation target so supplier options can be compared more accurately.
Useful answers
What is Potassium Gluconate used for in food manufacturing?
Potassium Gluconate is used as a potassium mineral source, sequestrant, buffering ingredient and formulation support material in beverages, nutrition powders, dairy systems, sauces, confectionery and special nutrition products where permitted.
Is Potassium Gluconate a potassium source?
Yes. Potassium Gluconate contributes potassium and can be used in potassium-enriched or electrolyte-style formulations where local regulation permits. Buyers should calculate potassium contribution from the exact supplier assay and confirm all nutrition-labelling requirements.
What is the E number for Potassium Gluconate?
Potassium Gluconate is commonly identified as E577 or INS 577. Buyers should confirm permitted use, food category restrictions, use level, nutrient declaration and label wording in the destination market.
Why is solubility important?
Solubility affects beverage clarity, reconstitution, filtration, dosing and finished-product appearance. Liquid systems should be tested for haze, sediment, pH drift, mineral interaction and flavour impact during shelf life.
Can Potassium Gluconate support sodium reduction?
It may be considered in potassium-based formulation strategies, but sodium-reduction claims, potassium warnings, electrolyte positioning and nutrition claims must be confirmed by local regulatory review before label approval.
Can Global Food Additives source Potassium Gluconate?
Global Food Additives can review sourcing options according to target specification, food-grade requirement, assay or potassium content, quantity, destination, packaging preference and documentation needs.
Which documents should be requested?
Buyers commonly request a technical data sheet, certificate of analysis, safety data sheet, food-grade declaration, potassium-content statement, origin statement, shelf-life statement, storage conditions, packaging details, traceability information and market-specific declarations.
Is this product permitted in every country?
No. Food additive use, fortification use, potassium levels, nutrition claims and labelling depend on destination-market rules, food category, use level and buyer responsibility.
Tell us which food additive or ingredient you need.
Send product names, target specifications, quantity, destination country, packaging preference, delivery term and document requirements. Our team will review your inquiry and respond from orders@foodgradeadditives.com.
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