Keep Ingredients Co., Ltd. is one of the leading manufacturers and suppliers of purple sweet potato juice concentrate in China. If you're going to wholesale bulk high quality purple sweet potato juice concentrate, welcome to get more information from our factory. Also, cheap products are available.
What Is Purple Sweet Potato Juice Concentrate and How Is It Produced
Purple Sweet Potato Juice Concentrate (Latin name: Ipomoea batatas (L.) Lam for natural plant extracts) is a premium anthocyanin-rich concentrate tailored for global B2B partners in the food, beverage, nutraceutical, and confectionery industries. It is produced from fresh purple sweet potato tubers via advanced extraction, filtration, and concentration technology, processed within 24 hours of harvest to preserve natural anthocyanins, vivid color, and authentic flavor without synthetic additives.
Our Purple Sweet Potato Juice Concentrate features a color value E1%1cm (530nm) ≥12.0, soluble solid content ≥40.0%, and Total Soluble Solids ≥65.0°Bx, with zero artificial pigments or preservatives. The formulation ensures stability across heat (up to 121℃ for short periods) and pH 2.0-4.0, making it ideal for diverse processing conditions. As a natural purple colorant and functional ingredient, it aligns with consumer demand for clean-label, plant-based products. Trusted for its consistent color and natural origin, it is the preferred choice for formulating high-value products. Widely used by beverage manufacturers, dairy brands, and natural color suppliers in the EU and US markets.
Technical Specifications & Analysis
| Analytical Items | Compound Source | Specifications | Test Method |
|---|---|---|---|
| Key Index | |||
| Color Value E1%1cm (530nm) | Purple Sweet Potato Tuber Extract | ≥12.0 | UV-Vis Spectrophotometry |
| Soluble solid content | - | ≥40.0% | Gravimetric |
| Total Soluble Solids | - | ≥65.0°Bx | Refractometry |
| pH | - | 2.0-4.0 | pH Meter |
| Physical & Chemical Index | |||
| Appearance | - | Vivid Purple-Red Thick Liquid | Organoleptic |
| Odor & Taste | - | Characteristic Sweet-Tart Aroma, Natural Flavor | GB/T 29602 |
| Solubility | - | ≥99.0% in Water | Visual Test |
| Safety Index | |||
| Heavy Metals (Total) | - | ≤10ppm | GB 5009.74 |
| Lead (Pb) | - | ≤1.0ppm | GB 5009.12 |
| Arsenic (As) | - | ≤1.0ppm | GB 5009.76 |
| Cadmium (Cd) | - | ≤0.5ppm | GB 5009.15 |
| Mercury (Hg) | - | ≤0.5ppm | GB 5009.17 |
| Microbiological Index | |||
| Total Plate Count | - | ≤10,000cfu/g | GB 4789.2 |
| Coliforms | - | ≤100cfu/g | GB 4789.3 |
| Yeast & Mold | - | ≤100cfu/g | GB 4789.15 |
| E.Coli | - | Negative | GB 4789.3 |
| Salmonella | - | Negative | GB 4789.4 |
Core Functional Benefits
Provides natural, vivid purple-red coloration for clean-label food and beverage formulations.
Supports healthy antioxidant defense with natural anthocyanins.
Enhances product functional value with plant-based bioactive compounds.
Contributes to clean-label, nutrient-dense ingredient profiles.
Maintains stability across diverse processing conditions (heat, pH).
Core Product Advantages
| Advantage Category | Key Features | Business Value |
|---|---|---|
| Purity & Potency | 100% natural origin, rich in anthocyanins | Meets clean-label trends and consumer demand for transparency |
| Stability & Versatility | Heat-stable, pH-tolerant (2.0-4.0), high solubility | Seamlessly integrates into beverages, baked goods, and functional foods |
| Safety & Compliance | Strict heavy metal limits, pathogen-free, Non-GMO | Mitigates regulatory risks in EU/US markets; ensures product safety |
| Quality Consistency | Controlled color value, soluble solids, and microbiological indices | Guarantees uniform performance and shelf life |
| Market Relevance | Dual function (natural colorant + functional ingredient) | Differentiates product lines in wellness and clean-label segments |
Purple Sweet Potato Juice Concentrate vs Powder
Liquid Concentrate vs Powder: Which is Better for Your Formulation?
When selecting purple sweet potato ingredients, manufacturers often compare juice concentrate and powder formats. Each offers different advantages depending on processing requirements, cost targets, and product positioning.
Key Differences Between Liquid Concentrate and Powder
| Format | Purple Sweet Potato Juice Concentrate | Purple Sweet Potato Powder |
|---|---|---|
| Processing | Cold extraction + concentration | Extraction + spray drying |
| Color intensity | Higher natural color retention | Slight color loss during drying |
| Anthocyanin stability | Better preserved | Partially degraded by heat |
| Dispersion | Instant in liquid systems | Requires dissolution |
| Taste authenticity | Closer to fresh juice | Slight cooked note possible |
| Best applications | Beverages, dairy, and sauces | Capsules, dry blends |
| Processing cost | Lower for liquid lines | Higher for dry blending |
| Water activity | High | Low |
When to Choose Purple Sweet Potato Juice Concentrate
Recommended for:
• Ready-to-drink beverages
• Yogurt & dairy formulations
• Functional drinks
• Gummies & syrup systems
• Natural liquid colorant replacement
The liquid format disperses instantly, avoids clumping, and delivers consistent purple color without additional hydration steps.
When Powder May Be Preferred
Powder format may be suitable for:
• Capsule supplements
• Dry drink mixes
• Instant powders
• Tablet formulations
However, additional dissolution and color uniformity control may be required.
For manufacturers prioritizing natural color strength, fast dispersion, and authentic flavor, juice concentrate is typically the preferred option.
Purple Sweet Potato Juice Concentrate Applications by Industry
Our purple sweet potato juice concentrate is designed for multi-industry B2B formulations where natural purple color, anthocyanin content, and clean-label positioning are required.
1. Beverage Manufacturers
| Typical applications: | Formulation advantages: | Suitable for: |
| • Functional beverages • Sports drinks• Juice blends • Plant-based drinks • RTD antioxidant beverages |
Provides vibrant purple color without artificial dyes Stable under pasteurization and UHT processing Compatible with acidic beverage systems (pH 2.0–4.0) Instant dispersion with no sediment |
Natural color beverages Premium fruit blends Antioxidant drinks Kids clean-label drinks |
2. Dairy Processors
| Common use cases: | Functional benefits: | This makes it suitable for: |
| Yogurt, Drinking yogurt Ice cream Milk beverages Dairy desserts |
Stable under refrigerated and frozen conditions No color bleeding in the dairy matrix Natural purple tone for premium positioning Compatible with flavored yogurt systems |
Purple yogurt Berry-style dairy drinks Plant-based dairy alternatives |
3. Confectionery & Bakery Manufacturers
| Typical applications: |
Gummies, jelly candies, Hard candies, Cake fillings, Frostings, Baked snacks |
| Processing advantages: |
Heat-stable during short baking cycles; Uniform color distribution; No synthetic color replacement needed; Natural fruit flavor enhancement; |
| Especially suitable for: |
Clean-label gummies; Natural fruit candy; Premium dessert color systems |
4. Nutraceutical Brands
| Use cases: | Advantages: | Preferred by: |
|
Functional gummies; Liquid supplements; Antioxidant shots; Wellness drinks Nutritional blends |
Natural anthocyanin content Plant-based functional positioning Supports antioxidant claims; Easy liquid blending |
Wellness brands; Clean-label supplement manufacturers; Functional beverage startups |
5. Natural Color Suppliers
| This ingredient can also be used as: | Applicable for replacing: | Advantages: |
|
Natural purple food colorant Plant-based color additive Clean-label synthetic dye replacement |
FD&C Red + Blue blends Synthetic purple dyes Artificial fruit colors |
Natural origin; Consumer-friendly labeling Consistent batch color value |
Dosage References:
| Application | Dosage | Result |
| Beverage | 0.3–0.8% | Light purple |
| RTD drinks | 0.5–1.0% | Vivid purple |
| Yogurt | 0.6–1.2% | Berry style |
| Gummies | 0.8–1.5% | Deep purple |
Natural Purple Color Juice Concentrate Comparison
Food and beverage manufacturers evaluating natural purple colorant options typically compare purple sweet potato juice concentrate against beetroot, grape skin, and black carrot concentrates. Each source differs in pigment type, color stability profile, flavor impact, and supply reliability. The following comparison covers the three most commonly evaluated alternatives.
Purple sweet potato concentrate's primary advantage in this comparison is its combination of anthocyanin-based coloration - which is stable in acidic pH systems - with a mild, neutral flavor that does not influence the taste profile of the finished product the way beetroot's earthy note or grape skin's wine-like flavor does. Its supply chain is also less seasonally constrained than grape skin, which is directly tied to annual grape harvest cycles.
1. Purple Sweet Potato Juice Concentrate vs Beetroot Juice Concentrate
| Factor | Purple Sweet Potato | Beetroot |
|---|---|---|
| Color tone | Bright purple-red | Deep red |
| Pigment type | Anthocyanins | Betalains |
| Heat stability | Good | Moderate |
| pH stability | Strong in acidic systems | Limited |
| Flavor impact | Mild sweet | Earthy note |
| Best use | Beverages, dairy | Meat & bakery |
2. Purple Sweet Potato Juice Concentrate vs Grape Skin Concentrate
| Factor | Purple Sweet Potato | Grape Skin |
|---|---|---|
| Color stability | High | Moderate |
| Flavor | Neutral | Wine-like |
| Supply stability | Stable | Seasonal |
| Cost | Moderate | Higher |
| Application | Wide | Premium beverages |
3. Purple Sweet Potato Juice Concentrate vs Black Carrot Juice Concentrate
| Factor | Purple Sweet Potato | Black Carrot |
|---|---|---|
| Color tone | Purple-red | Dark purple |
| Anthocyanin | High | Very high |
| Taste | Mild | Slight earthy |
| Cost | Lower | Higher |
| Processing stability | Excellent | High |
Understanding Brix and Color Value in Purple Sweet Potato Juice Concentrate
For formulators and procurement teams evaluating purple sweet potato juice concentrate, two parameters - Brix and color value - are the primary quality and dosage-calculation anchors. Understanding what each measures and how to use them prevents over- or under-dosing in the finished formulation.
What is Brix?
Brix represents soluble solids concentration.
Higher Brix means:
- More concentrated extract
- Lower dosage requirement
- Reduced transportation cost
- Stronger flavor
Recommended Brix Selection:
| Application | Recommended Brix |
|---|---|
| Beverages | 60–65°Bx |
| Dairy | 65°Bx |
| Confectionery | 65–70°Bx |
| Colorant | 70°Bx |
What is Color Value E1%1cm?
Color value indicates pigment strength.
Higher color value means:
- Lower dosage required
- More vibrant color
- Better cost efficiency
Recommended Color Value:
| Application | Color Value |
|---|---|
| Light beverages | 8–10 |
| Standard drinks | 12 |
| Gummies | 12–15 |
| Colorant | 15–20 |
Related Natural Juice Concentrates and Fruit Juice Powders for Multi-Ingredient Sourcing
For food and beverage manufacturers sourcing multiple natural juice ingredients, we supply a full range of fruit and vegetable juice concentrates alongside our purple sweet potato juice concentrate, all produced under the same FSSC22000 and BRC-certified quality system with matching documentation. Sourcing complementary concentrates from a single supplier simplifies COA management, reduces import documentation workload, and ensures specification consistency across ingredient lots.
| Product Category | Product Name | Key Specifications | Target Applications |
|---|---|---|---|
| Root Vegetable Concentrates | Carrot Juice Concentrate | Color Value ≥40.0, ≥68°Bx | Beverages, baked goods, and colorants |
| Beetroot Juice Concentrate | Color Value ≥50.0, ≥65°Bx | Functional drinks, nutritional supplements | |
| Sweet Potato Juice Concentrate | Color Value ≥35.0, ≥62°Bx | Confectionery, frozen foods | |
| Fruit Juice Concentrates | Apple Juice Concentrate | ≥70°Bx, Natural Sweet Taste | Beverages, snacks, baking |
| Grape Juice Concentrate (Red) | Color Value ≥45.0, ≥68°Bx | Wines, sauces, functional foods | |
| Pomegranate Juice Concentrate | ≥65°Bx, Rich in Polyphenols | Nutraceuticals, premium beverages | |
| Cranberry Juice Concentrate | ≥60°Bx, Tart Flavor | Supplements, functional drinks | |
| Tropical Fruit Concentrates | Mango Juice Concentrate | ≥65°Bx, Sweet-Tart Flavor | Beverages, confectionery |
| Pineapple Juice Concentrate | ≥68°Bx, Citrus Flavor | Drinks, frozen foods | |
| Passion Fruit Juice Concentrate | ≥62°Bx, Tangy Flavor | Smoothies, snacks |
| Product Name | Key Specifications | Target Applications |
|---|---|---|
| Apple Juice Powder | Spray-dried, ≥65% Carbohydrates | Beverages, baking, supplements |
| Strawberry Juice Powder | Color Value ≥40.0, Spray-dried | Confectionery, smoothies |
| Blueberry Juice Powder | ≥25% Anthocyanins, Spray-dried | Nutraceuticals, functional drinks |
| Grape Juice Powder (Red) | Color Value ≥35.0, Spray-dried | Baked goods, supplements |
| Mango Juice Powder | Spray-dried, Natural Sweet Taste | Beverages, frozen foods |
| Cranberry Juice Powder | ≥20% Proanthocyanidins | Supplements, confectionery |
| Raspberry Juice Powder | Color Value ≥30.0, Spray-dried | Snacks, smoothies |
| Blackcurrant Juice Powder | ≥35% Anthocyanins | Premium beverages, nutraceuticals |
| Watermelon Juice Powder | Spray-dried, Low Sugar | Drinks, frozen desserts |
| Pear Juice Powder | Natural Sweet Taste, Spray-dried | Baby food, beverages |
Package & Storage
Standard Packaging:
Small Orders (50-200kg): Food-grade HDPE drums (50kg/100kg) with tamper-evident seals and inner PE liners to preserve freshness and color.
Bulk Orders (200kg+): Food-grade IBC tanks (1000kg/2000kg) or flexitanks, equipped with temperature control layers for long-distance shipping.
Custom Packaging: Supports 1kg sample packs (R&D testing) or custom-sized drums upon request. Tailored solutions include batch numbering and custom labeling.
Storage Requirements: Store in a cool (15-25℃), dry environment with relative humidity ≤80%, away from direct sunlight and heat sources. Keep sealed tightly after opening.
Shelf Life: 12 months from production date when stored under recommended conditions.
Logistics & Quality Assurance
Global Shipping Solutions: We ship purple sweet potato juice concentrate globally under DAP, DDP, FOB, and CIF terms. Small orders (50–200 kg) are dispatched via air freight with an estimated delivery of 5–10 working days. Bulk orders (200kg+) ship via sea freight in temperature-controlled containers, with transit times of 20–35 working days to major EU, US, and Asian ports. IBC tanks and flexitanks are available for bulk liquid concentrate shipments to minimize packaging cost per kilogram.
Free Sample Provision: 1kg free samples are available for formulation testing and color evaluation, accompanied by a batch-specific COA. Samples are dispatched within 3–5 business days of request confirmation. Color value and Brix verification data are included in the sample COA to support initial formulation calculations before committing to a commercial order.
Strict Quality Control: Every batch of bulk purple sweet potato juice concentrate undergoes three-stage testing covering raw material intake, in-process concentration monitoring, and finished product release. The release panel includes color value by UV-Vis spectrophotometry, Brix by refractometry, pH, solubility, five heavy metal parameters, and a full microbiological panel. Both in-house and third-party test reports are available on request prior to shipment.
Customs Support: We provide a complete import compliance documentation package as standard on every shipment: Health Certificate, Certificate of Origin, Non-GMO Statement, KOSHER Certificate, HALAL Certificate, and allergen-free declaration. Additional country-specific documents can be arranged on request.
Why Choose Us as Your Supplier?
Natural Purity: 100% purple sweet potato origin with no artificial additives, meeting global clean-label demands.
Comprehensive Portfolio: Covers diverse natural juice concentrates and powders to meet multi-scenario B2B needs.
Technical Expertise: The R&D team provides formulation support and compatibility testing for seamless product integration.
Supply Reliability: 500+ tons monthly capacity ensures stable delivery for large-scale production.
Cost Competitiveness: 5%-20% lower pricing than global suppliers, without compromising quality.
Contact Us for a Quote or Sample
Ready to elevate your products with our premium Purple Sweet Potato Juice Concentrate (≥12.0 Color Value or OEM)?
Please note our products are for commercial/industrial use only. Contact our sales team to discuss your needs, request free samples, or get a quotation.
Email: info@watersolu.com
Phone: +86 13484914978
WhatsApp: +86 17396654828
FAQ
Q: Is purple sweet potato juice concentrate stable under pasteurization and UHT processing?
A: Yes. The concentrate maintains color stability through short-term heat treatment up to 121°C, covering standard pasteurization and UHT processing conditions used in commercial beverage and dairy manufacturing. For applications involving prolonged high-temperature exposure, such as baking in dough or batter, we recommend adding the concentrate at a later processing stage - for example in fillings, frostings, or post-bake coatings - to minimize cumulative anthocyanin degradation.
Q: What is the pH stability range of purple sweet potato juice concentrate, and is it compatible with acidic beverage systems?
A: The concentrate is optimally stable in the pH 2.0–4.0 range, which corresponds directly to the pH of most commercial fruit juice blends, RTD functional beverages, and flavored water products. Anthocyanin pigments from purple sweet potato are inherently more stable in acidic conditions than in neutral or alkaline pH systems, so beverage applications within this pH range benefit from the best color retention over shelf life. For applications outside this range - such as neutral pH functional drinks or alkaline water - color stability should be verified through shelf life testing at your specific formulation pH.
Q: Can purple sweet potato juice concentrate replace synthetic purple and red dyes in food and beverage products?
A: Yes. Purple sweet potato juice concentrate is used as a direct natural replacement for synthetic dye combinations including FD&C Red 40 plus Blue 1 blends and artificial purple colorant systems. It achieves equivalent visual color in beverages, dairy products, gummies, and confectionery at commercially practical inclusion rates, without the "artificial colors" declaration required for synthetic dye systems. For clean-label reformulation projects, we recommend requesting a 1kg sample and conducting a side-by-side color matching trial at your target inclusion rate before committing to a production order.
Q: Does purple sweet potato juice concentrate contain added sugar or artificial sweeteners?
A: No. The product contains no added sugar and no artificial sweeteners. The soluble solid content (≥40.0%) and Brix value (≥65.0°Bx) reflect the natural sugars and dissolved solids from the purple sweet potato tuber itself. This supports clean-label declarations and is compatible with "no added sugar" product claims, subject to the regulatory framework of your target market.
Q: What are the recommended inclusion rates for purple sweet potato juice concentrate by application?
A: Typical inclusion rates vary by application and target color intensity. For light purple coloration in beverages, 0.3%–0.8% is the standard starting range; for vivid purple in RTD drinks, 0.5%–1.0%. Yogurt and dairy applications typically use 0.6%–1.2%. Gummy and confectionery applications use 0.8%–1.5% depending on target color depth. These rates are based on our standard ≥12.0 color value grade. For higher color value grades (≥15.0 or ≥20.0), inclusion rates can be reduced proportionally to achieve equivalent color at lower cost per unit. Specific dosage recommendations for your formulation base are available from our technical team upon sample request.
Q: Is purple sweet potato juice concentrate suitable for clean-label and non-GMO certified products?
A: Yes. It is 100% natural and supports clean-label claims.
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