Riboflavin E101
Riboflavin E101 is a food-grade yellow to orange-yellow colour ingredient and vitamin B2 source used in selected food, beverage, nutrition and supplement applications. It is valued by manufacturers for colour standardisation, vitamin fortification, clean-label colour positioning and dual functionality where both shade and nutritional identity may be relevant. This page is prepared for purchasing teams, R&D formulators, QA departments, colour technologists, nutrition developers and import coordinators who need a structured starting point for grade selection, specification review, document collection and quotation requests.
Product identity
| Product | Riboflavin |
|---|---|
| Common commercial references | Riboflavin E101, Vitamin B2, lactoflavin, riboflavin colour, yellow vitamin colour |
| Category | Colours & Colouring Foods |
| Primary function | Yellow food colour, colour standardisation ingredient, vitamin B2 fortification ingredient and nutrition premix component |
| E / INS number | E101 / INS 101 where applicable; confirm destination-market status and intended use |
| CAS / identity | 83-88-5 |
| Chemical identity | Riboflavin / vitamin B2 |
| Typical appearance | Yellow to orange-yellow crystalline powder or powder preparation, depending on grade and carrier system |
| Typical form | Fine powder, crystalline powder, water-dispersible grade, riboflavin 5 phosphate preparation, premix, beadlet, tablet blend, dispersion or custom formulation |
| Typical use concept | Yellow colour development, shade standardisation, vitamin B2 fortification, nutritional claim support and colour/nutrient dual-function applications |
Application fit
Potential use areas may include:
- Beverages, beverage powders, drink mixes and fortified drinks
- Confectionery, gummies, compressed tablets and sugar systems
- Dairy desserts, plant-based desserts, yoghurts and creams
- Sauces, dressings, soups, savoury mixes and seasonings
- Snacks, extruded products, coated snacks and dry blends
- Bakery, cereals, pasta, noodles and flour-based fortification systems
- Nutrition powders, meal replacements, sports nutrition and wellness products
- Vitamin premixes, supplements and tablet/capsule-style applications where permitted
Technical purchasing notes
When reviewing Riboflavin, compare the supplier specification against the intended use as a colour, vitamin, fortificant, nutrient premix ingredient or combined colour-nutrient ingredient. The most useful industrial inquiry normally includes target grade, assay, particle size, solubility or dispersibility requirement, light-protection requirement, colour shade target, vitamin declaration target, packaging size, quantity, destination country and required documentation.
Industrial role and performance profile
Riboflavin is selected when a food manufacturer needs a yellow to orange-yellow shade, vitamin B2 enrichment or a colourant with nutritional identity. In colour applications, it can provide a bright yellow tone, but it must be evaluated for shade intensity, dispersibility, light sensitivity, heat process, pH, matrix interaction and packaging exposure. In fortification applications, the priority is assay, dosage accuracy, overage strategy, nutrient retention, premix uniformity and label-compliant vitamin contribution at the end of shelf life.
Yellow colour development
Riboflavin can create yellow to orange-yellow shades in suitable products. The final shade depends on dosage, product pH, matrix opacity, dissolved solids, heat treatment, particle dispersion and interaction with flavours, proteins, minerals and stabilisers.
Vitamin B2 fortification
Riboflavin can be used to enrich products with vitamin B2. Fortification projects should calculate input level, process losses, shelf-life retention, label declaration, nutrient claim thresholds and overage according to local regulations.
Light sensitivity
Riboflavin is sensitive to UV and visible light. Transparent packaging, high retail light exposure and long storage may reduce colour and vitamin retention, so light-protective packaging and stability testing are important.
Low dosage control
Because usage levels can be small, industrial systems often require premixing, carrier dilution, accurate micro-dosing, controlled blending and homogeneity testing to avoid colour spotting or nutrient variation.
Grade selection guide
Different Riboflavin grades can behave differently in production. The correct grade should be selected according to whether the target is colour, vitamin fortification, beverage dispersion, tablet blending, dry premixing, light stability, clear appearance or a custom nutritional premix.
| Grade or format | Industrial relevance | Purchasing note |
|---|---|---|
| Riboflavin powder | Common food-grade form used in dry blends, premixes, fortified foods, cereals, bakery and nutrition powders. | Request assay, particle size, flowability, colour, moisture, light-protection guidance and homogeneity recommendations. |
| Fine crystalline grade | Useful when high purity and defined assay are required, but may need careful dispersion in wet systems. | Check solubility, dispersibility, dusting, electrostatic behaviour and compatibility with micro-dosing equipment. |
| Water-dispersible grade | Useful for beverages, dairy alternatives, sauces, liquid concentrates and products requiring easier distribution in water-based systems. | Request carrier system, dispersibility method, sedimentation behaviour, pH range and label declaration. |
| Riboflavin 5 phosphate preparation | May be considered where improved water compatibility is needed, depending on supplier grade and market rules. | Confirm exact identity, assay basis, E-number or nutrient declaration, sodium contribution and destination-market acceptance. |
| Premix or carrier-diluted grade | Suitable for factories that need lower-concentration blends for easier dosing and better distribution. | Request full composition, carrier declaration, assay, blend uniformity and shelf-life data. |
| Beadlet or encapsulated grade | Useful for improved handling, protection, controlled release or reduced dusting in selected dry systems. | Check coating materials, dissolution behaviour, processing compatibility and label declaration. |
| Custom vitamin premix | May combine Riboflavin with thiamine, niacin, folic acid, vitamin B6, vitamin B12 or minerals for enrichment programs. | Request full nutrient composition, overage strategy, homogeneity data and regulatory review for the destination market. |
Key specification parameters to compare
A professional Riboflavin offer should include chemical, nutritional, colour and handling data. Buyers should compare assay, purity, particle size, solubility or dispersibility, light stability, microbiological quality, heavy metals, carrier system and documentation completeness before approving a commercial grade.
| Parameter | Why it matters | Recommended buyer action |
|---|---|---|
| Assay / potency | Determines colour strength, vitamin contribution and dosage calculation. | Request assay method, specification limits and batch COA value. |
| Identity | Important for distinguishing riboflavin, riboflavin 5 phosphate, premixes and carrier-based preparations. | Confirm CAS, E/INS reference, chemical form and supplier-supported label wording. |
| Particle size | Influences blend uniformity, colour specking, wetting, dusting and dissolution behaviour. | Request mesh size, D10/D50/D90 or supplier particle-size range where relevant. |
| Solubility / dispersibility | Critical for beverages, syrups, dairy desserts and wet systems. | Run tests in actual process water, pH, minerals, stabilisers and heat treatment conditions. |
| Colour value / shade | Supports standardisation when Riboflavin is used primarily as a colour. | Compare shade panels or instrument colour values in the final product matrix. |
| Moisture / loss on drying | High moisture can affect caking, flowability and shelf life. | Confirm moisture limits and storage guidance. |
| Light stability | Riboflavin can degrade under strong light exposure. | Request storage guidance and run shelf-life trials in final packaging. |
| Heavy metals | Important for food safety, import clearance and customer approval. | Request limits and batch values for lead, arsenic, cadmium, mercury and other required elements. |
| Microbiological profile | Relevant for nutrition products, infant-style applications, premixes and sensitive customer standards. | Request total plate count, yeast and mould, coliforms, pathogens and customer-specific limits where required. |
| Carrier and processing aids | Premixes and dispersible grades may contain carriers or processing aids affecting label declaration. | Request full composition, allergen status, GMO status and market-specific label wording. |
Application guidance by industry
Beverages and drink powders
Riboflavin can be evaluated in fortified drinks, powdered beverages, energy drinks, isotonic drinks, juice drinks and nutritional beverages. Beverage trials should assess dispersibility, sediment, light exposure, pH stability, flavour interaction, vitamin retention and colour consistency after processing and shelf-life storage.
- Useful target: yellow shade and vitamin B2 declaration.
- Watch point: standard riboflavin may be difficult to dissolve completely in clear beverages.
- RFQ note: provide pH, heat process, packaging type, target vitamin level and clarity requirement.
Confectionery and gummies
In gummies, jellies, hard candy, compressed sweets and sugar systems, Riboflavin may provide yellow colour and nutritional identity. Trials should review cooking temperature, acid type, colour uniformity, gelatin or pectin system, water activity and light exposure in packaging.
- Useful target: yellow colour in vitamin or wellness-positioned confectionery.
- Watch point: high-acid or high-heat systems require retention testing.
- RFQ note: specify candy type, process temperature and target colour intensity.
Dairy and plant-based desserts
Riboflavin can be used in custards, puddings, yoghurts, dairy alternatives, creams and frozen desserts where yellow tone or vitamin B2 fortification is desired. Protein, fat, stabilisers and heat treatment can affect shade and dispersion.
- Useful target: custard, vanilla, cream, banana or fortified dessert colour.
- Watch point: transparent cups and illuminated display can increase light exposure.
- RFQ note: provide pH, fat level, heat process, stabiliser system and packaging format.
Bakery, cereals and flour systems
Riboflavin is relevant in fortified bakery, breakfast cereals, flour-based foods, noodles and nutrition-positioned products. Formulators should evaluate uniform distribution, processing retention, baking impact, colour visibility and final nutrient declaration after shelf life.
- Useful target: vitamin enrichment and controlled yellow colour contribution.
- Watch point: low use level can create blend-uniformity challenges.
- RFQ note: share flour system, mixing method, heat process and target nutrient claim.
Sauces, soups and savoury systems
In sauces, soups, savoury mixes, dressings and seasonings, Riboflavin may support yellow tone or fortification. The final shade can be influenced by spices, proteins, fats, starches, acids, salt, emulsifiers and heat treatment.
- Useful target: golden-yellow colour standardisation and nutrient addition.
- Watch point: spices such as turmeric or paprika may mask or shift Riboflavin colour.
- RFQ note: provide pH, oil phase, heat process and target shade.
Nutrition products and premixes
Riboflavin is widely evaluated in vitamin premixes, meal replacements, protein powders, tablets, capsules and fortified nutrition systems. Dosing accuracy, homogeneity, assay retention, premix compatibility and finished-product label compliance are critical.
- Useful target: accurate vitamin B2 contribution and label claim support.
- Watch point: light, humidity and alkaline ingredients may affect stability.
- RFQ note: specify target assay, serving size, overage strategy and premix composition.
Formulation and processing notes
Riboflavin performance should be tested in the finished product because solubility, colour intensity, vitamin retention and sensory impact depend on the complete formula. In colour use, the key targets are shade, uniformity, stability and regulatory declaration. In fortification use, the key targets are assay, overage, retention, serving-size contribution and claim compliance. For sensitive applications, protect the ingredient and finished product from excessive light, moisture and incompatible ingredients.
Premixing strategy
Because Riboflavin may be used at low levels, pre-dilution into a carrier, vitamin premix or dry blend can improve uniform distribution and reduce weighing error.
Light protection
Use light-protective raw material packaging, controlled warehouse exposure and suitable finished-product packaging. Transparent retail packs should be validated under realistic light exposure.
Wet dispersion
For wet systems, evaluate riboflavin form, water temperature, mixing shear, pH, mineral content, stabilisers and order of addition to avoid specking or sediment.
Nutrient retention
Fortified products should be tested after processing and at the end of shelf life. Overage should be justified by stability data, legal limits and label requirements.
Stability and finished-product considerations
| Condition | Potential impact | Factory recommendation |
|---|---|---|
| Light exposure | UV and visible light can reduce Riboflavin activity and affect final colour. | Use light-protective packaging and conduct light-exposure shelf-life trials. |
| pH | Acidic, neutral and alkaline systems can show different dispersion and shade behaviour. | Test at the actual final pH and after storage. |
| Heat processing | Pasteurisation, baking, extrusion or retort may influence retention and shade. | Measure colour and assay after the complete process. |
| Minerals and premix interactions | Mineral premixes, salts and alkaline components can affect stability and distribution. | Run compatibility tests with the full premix or formula. |
| Water activity | Moisture can affect caking, flowability and premix stability. | Control humidity and use moisture-protective packaging. |
| Packaging oxygen and headspace | Oxygen and light together may accelerate quality loss in some systems. | Evaluate barrier packaging, opaque packs and controlled headspace where relevant. |
Quality, safety and compliance review
For import, customer approval and factory quality management, Riboflavin should be reviewed as a regulated food colour, vitamin ingredient or fortification component depending on the intended use. Buyers should confirm food-grade status, E101 / INS 101 or local regulatory identity, assay, purity, microbiology, heavy metals, residual solvents where relevant, allergen status, GMO status, origin, production method, carrier composition and market-specific labelling rules.
Colour-additive status
Confirm whether Riboflavin is permitted as a food colour in the destination country and intended food category. Food colour naming, maximum levels and label declaration can differ by market.
Vitamin fortification status
When used as vitamin B2, confirm whether voluntary or mandatory fortification rules apply, what nutrient form is accepted and how the vitamin must be declared on the label.
Claim review
Claims such as source of vitamin B2, high in vitamin B2, fortified, enriched, natural colour or no artificial colour must be checked against destination-market rules and finished-product data.
Customer standards
Retailers and manufacturers may require allergen, GMO, gluten-free, vegan, vegetarian, halal, kosher, heavy metal, residual solvent and country-of-origin declarations before approval.
Documents to request
- Product specification or technical data sheet with grade name, chemical form, assay and intended use.
- Certificate of analysis for the offered batch or representative lot.
- Safety data sheet with handling, dust-control and storage information.
- Food-grade statement and E101 / INS 101 or market-specific regulatory declaration.
- Assay method, potency basis, purity, moisture and impurity information.
- Particle size, bulk density, flowability, solubility or dispersibility data where relevant.
- Light-stability, storage and shelf-life guidance.
- Heavy metal declaration covering lead, arsenic, cadmium, mercury and other required elements.
- Microbiological specification for nutrition products, premixes and sensitive applications.
- Residual solvent or processing aid statement where relevant to the production method.
- Allergen, GMO, gluten, vegan, vegetarian, halal and kosher statements where required.
- Origin statement, manufacturer information, lot traceability and shelf-life information.
- Full composition and carrier declaration if supplied as a premix, beadlet, dispersion or custom preparation.
- Packaging details, pallet configuration, storage conditions and container loading information.
- Market-specific declarations required by the destination country or final customer.
Packaging, storage and logistics
Riboflavin is typically supplied in sealed food-grade bags, cartons, drums, fibre drums or light-protective containers depending on grade and order size. Because Riboflavin is sensitive to light, packaging should protect the ingredient from direct sunlight, strong warehouse lighting, moisture, odours and contamination. Fine powders require careful dust handling and accurate weighing procedures. Premixes and carrier-diluted grades should be stored according to supplier instructions to protect potency and blend uniformity.
| Packaging question | Why it matters |
|---|---|
| Is the product pure Riboflavin, phosphate form, premix, beadlet or dispersion? | Determines label declaration, solubility, dosing method and quality specification. |
| Is the packaging light-protective? | Helps protect assay, colour and shelf-life stability. |
| What is the net weight per bag, drum, carton or container? | Supports batch-size planning, warehouse handling and purchasing comparison. |
| Is the product fine powder or agglomerated grade? | Influences dusting, flowability, blend uniformity and dosing equipment compatibility. |
| What is the shelf life and recommended storage condition? | Important for potency control, stock rotation and customer audit files. |
| Are export and customs documents available before shipment? | Reduces clearance delay and speeds up customer approval. |
Commercial evaluation and cost-in-use
Riboflavin should be evaluated by cost-in-use and finished-product performance, not only by price per kilogram. A higher-purity or better-dispersing grade may be more economical if it reduces dosage error, improves colour uniformity, supports vitamin claim compliance or reduces production rework. Buyers should compare assay, solubility, colour performance, stability, documentation speed, regulatory fit, packaging quality, MOQ, lead time and supplier consistency before commercial approval.
Sample approval
Request a representative sample from the same grade and production origin proposed for commercial supply. Test it in the actual formula, process and packaging format.
Colour benchmarking
Compare shade, intensity, uniformity, sediment, specking and colour retention against the current colour system or target product standard.
Nutrition validation
For vitamin use, verify assay, dosage, overage, processing retention and finished-product level at the end of shelf life.
Supplier consistency
Review lot-to-lot assay, particle size, colour, documentation speed, minimum order quantity, shelf-life remaining and long-term availability.
How to request this product
Send the product name, intended use as colour or vitamin, required grade, assay requirement, solubility or dispersibility target, colour target, vitamin target, process conditions, packaging exposure, regulatory market, required documentation, annual and first-order quantity, destination country, packaging preference, Incoterms and expected shipment date. If you already purchase Riboflavin, attach your current specification, certificate of analysis, SDS, dosage level, premix formula or finished-product benchmark so supplier options can be compared more accurately.
Recommended RFQ checklist
- Product: Riboflavin / Riboflavin E101 / Vitamin B2 / CAS 83-88-5
- Intended use: food colour, vitamin fortification, nutrient premix, supplement blend or dual colour-nutrient function
- Required form: powder, crystalline grade, water-dispersible grade, phosphate form, premix, beadlet, dispersion or custom blend
- Target assay, potency basis and required specification standard
- Application: beverage, confectionery, dairy dessert, sauce, snack, bakery, cereal, nutrition powder, tablet or premix
- Required colour target, vitamin target, overage strategy or finished-product claim requirement
- Processing conditions: pH, heat treatment, light exposure, storage temperature and packaging format
- Required documents: TDS, specification, COA, SDS, food-grade statement, E101 declaration, allergen, GMO, halal, kosher, heavy metals and microbiology
- Destination country and target regulatory market
- Quantity for sample, pilot trial and commercial order
- Preferred packaging and pallet configuration
- Delivery term, port, airport or warehouse destination
- Existing approved reference sample, competitor specification or formulation benchmark if available
Useful answers
What is Riboflavin used for in food manufacturing?
Riboflavin is used as a yellow to orange-yellow food colour, vitamin B2 fortification ingredient and colour-standardisation component. It is commonly evaluated in beverages, confectionery, dairy desserts, sauces, snacks, bakery, cereals, nutrition products and premixes.
What does E101 mean?
E101 is the food additive reference commonly associated with riboflavin in markets using E-number declarations. Final label wording and permitted use depend on the destination market, food category and intended function.
Is Riboflavin natural?
Riboflavin is vitamin B2 and occurs naturally in foods. Commercial food-grade Riboflavin may be produced by fermentation or other approved manufacturing routes depending on supplier. Natural, fermentation-derived, non-GMO or clean-label claims must be verified with supplier documents and local regulations.
Is Riboflavin water-soluble?
Riboflavin is a water-soluble vitamin, but standard Riboflavin powder can have limited practical solubility in some beverage systems. Water-dispersible or phosphate-based preparations may be considered for applications requiring better distribution.
Is Riboflavin stable in light?
Riboflavin is sensitive to UV and visible light. Raw material and finished products should be protected from strong light exposure, especially in transparent packaging or illuminated retail conditions.
Which grade should a manufacturer request?
The buyer should specify whether the project requires colour-grade Riboflavin, vitamin-grade Riboflavin, water-dispersible grade, Riboflavin 5 phosphate, premix grade, beadlet or custom blend. Assay, solubility, particle size, light stability, documentation and destination market should be defined.
Can Global Food Additives source Riboflavin?
Global Food Additives can review sourcing options for Riboflavin according to target grade, assay, application, required documents, quantity, destination, packaging preference and shipment schedule.
Which documents should be requested?
Buyers commonly request a technical data sheet, specification, certificate of analysis, safety data sheet, food-grade statement, E101 declaration, assay method, allergen statement, GMO statement, origin statement, heavy metal declaration, shelf-life information and packing details.
Is this product permitted in every country?
No. Food additive use, vitamin fortification, colour declaration, nutrient claims, maximum levels and label wording depend on destination-market rules, food category and buyer responsibility. Local regulations should be verified before commercial use.
Tell us which Riboflavin grade or vitamin-colour system you need.
Send product name, target grade, assay requirement, application, quantity, destination country, packaging preference, delivery term and document requirements. Our team will review your inquiry and respond from [email protected].
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