Purple sweet potato pigment| Natural anthocyanin pigments & Natural Antioxidant

✅ Plant source and production

Core raw materials: Selected non-GMO purple sweet potatoes (Ipomoea batatas) from Shandong, Sichuan and other places in China, the varieties are "Violet" and "Jishu No. 18", there is no pesticide residue in the planting process, and it has passed the SGS heavy metal test (lead <0.05ppm, arsenic <0.01ppm), and the whole process is traceable. Purple sweet potatoes are a crop introduced to China in the Ming Dynasty, and its anthocyanin content is more than twice that of blueberries.

Extraction technology: Low-temperature water extraction combined with ultrasonic-assisted extraction to maximize the retention of anthocyanin activity, and then purified by membrane separation technology and macroporous resin, with a color value of ≥150 (E¹% 520nm).

Stability optimization: Nano-microcapsule embedding technology improves light resistance (UV irradiation retention rate > 85% for 12 hours) and heat resistance (no fading at 80℃/1 hour), and is suitable for pH 2-8 environment.

Sustainability: Waste residue is converted into biofuel, carbon footprint is reduced by 30%, and ISO 14001 environmental certification is passed.

International Certification: ISO 9001、HACCP

National standards: GB 2760-2014 "Standards for the Use of Food Additives", GB 28311-2012 "Food Additives Purple Sweet Potato Pigment"

Safety testing: Each batch provides heavy metal, microbial (total colony count ≤ 1000 CFU/g) test reports and HPLC purity chart (Cyanidin-3-glucoside ≥ 95%)

Chemical definition: Purple sweet potato pigment (CAS No.: 11029-12-2) is a water-soluble anthocyanin pigment. The main active ingredient is cyanidin-3-glucoside, with the molecular formula C₂₁H₂₁O₁₁. It also contains β-carotene and dietary fiber.

Appearance: Dark purple powder (80-300 mesh), easily soluble in water and acidic ethanol, the solution is transparent purple-red

Stability: Acid resistance (stable at pH 3-5), easy to turn blue in alkaline environment (pH＞7), need to be stored away from light and at low temperature (<25℃)

Safety: LD₅₀＞10g/kg (actual non-toxic level), no mutagenicity and teratogenicity

High-efficiency coloring: Absorbance (520nm) ≥1.5 (1000-fold dilution), adjustable color tone (pink to dark purple)

Antioxidant: ORAC value is 18,000 μmol TE/g, and the free radical scavenging efficiency is 6 times that of vitamin E

Liver protection and anti-inflammatory: Inhibit liver cell oxidative damage

Blood sugar management: Inhibit α-glucosidase activity and assist in blood sugar control

Broad spectrum application:

Baked food: Purple sweet potato bread, cookies (addition amount 0.05-0.1g/kg, resistant to baking at 180℃)

Dairy products: Yogurt, ice cream (best color development at pH 4-6, added at 0.01%-0.05%)

Healthy drinks: Functional drinks, meal replacement shakes (compounded with vitamin C to prevent fading)

Compounding scheme: Compound with gardenia blue to produce a blue-purple tone, or compound with cochineal red to produce a wine red, suitable for natural organic foods and holiday-limited products

Functional preparations: Liver protection capsules, sugar control tablets (addition amount 0.5%-2%, in line with the standards of the Chinese Pharmacopoeia)

Antioxidant support: Oral liquid formula for delaying aging

Natural colorant: Purple base material for eye shadow and lip gloss, safe and non-irritating

Recommended dosage: 0.5%-1.5%（light stability test required）

Anti-aging ingredients: Added to essences and masks to repair UV damage

Acidic beverages: 0.02-0.1g/kg (bright and lasting color at pH 3-5)

Medical excipients: Adjusted according to the formula, compatibility and stability tests are required.

⛔ Contraindications:

Avoid direct contact with strong oxidants (such as persulfate)

Acidity regulators (such as citric acid) need to be added in alkaline environments (pH>7).

Testing support: Provide heavy metal, microbial and solvent residue test reports for each batch

High temperature resistant type: Nano-encapsulation process (resistant to baking at 200℃)

Water-oil dual-soluble type: Suitable for emulsification systems such as chocolate and salad dressing

Packing specifications: 1kg/bag, 10kg/barrel, supports sample trials and OEM customization