Black Currant Extract Powder
Introduction
While visually similar to other dark berries, Black Currant (Ribes nigrum L.) is uniquely prized in the clinical nutraceutical industry. Its therapeutic value is anchored in a highly specific profile of four core anthocyanins—most notably delphinidin-3-rutinoside and cyanidin-3-rutinoside. Rather than generic extraction, Shaanxi Runke utilizes targeted chromatographic protocols to isolate and standardize these exact molecular structures. Research indicates these specific rutinosides are exceptionally efficient at crossing the blood-retinal barrier, where they act to accelerate the regeneration of rhodopsin in rod cells and upregulate ocular microcirculation. Our standardized 25% assay guarantees verifiable, pharmaceutical-grade dosing for R&D teams formulating premium vision-care supplements.
Typical Specifications
|
Parameter |
Standard |
Test Method |
|
Appearance |
Dark violet to deep purple powder |
Visual |
|
Assay (Anthocyanidins) |
≥ 25.0% |
HPLC |
|
Extract Ratio |
10:1 (Botanical Equivalent) |
TLC |
|
Moisture |
≤ 5.0% |
USP <731> |
|
Ash Content |
≤ 5.0% |
USP <281> |
|
Heavy Metals (as Pb) |
< 10 ppm |
ICP-MS |
|
Solvent Residue |
Meets Eur. Ph. / USP limits |
GC |
Benefits
Black currant anthocyanins are clinically researched for their ability to cross the blood-retinal barrier. They actively accelerate the regeneration of rhodopsin, a light-sensitive protein in the retina. This mechanism significantly improves dark adaptation, reduces ciliary muscle spasm, and alleviates digital eye strain (VDT fatigue) caused by prolonged screen exposure.
The unique anthocyanidins in black currants promote vasodilation by upregulating nitric oxide (NO) production in the endothelium. This improves peripheral blood flow, strengthens capillary walls, and helps reduce systemic inflammation, contributing to overall cardiovascular homeostasis.
By acting as potent scavengers of reactive oxygen species (ROS), the extract mitigates exercise-induced oxidative stress. Clinical trials suggest that black currant supplementation can reduce lactic acid accumulation, minimize delayed onset muscle soreness (DOMS), and improve physical endurance during high-intensity training.
Synergizing the naturally occurring Vitamin C with potent flavonoids, the extract modulates immune responses, providing robust defense against seasonal pathogens and environmental stressors.
Applications
Highly sought after for premium vision-support formulas, often synergistically blended with Lutein, Zeaxanthin, or Bilberry extract. It is easily encapsulated in vegetarian hard shells, compressed into tablets, or formulated into functional softgels.
An ideal active ingredient for health-focused gummies, chewables, and nutritional energy bars. It simultaneously acts as a potent health booster and a natural, clean-label purplish-red colorant.
Perfectly suited for sports recovery drinks, functional smoothies, ready-to-drink (RTD) teas, and antioxidant water formulations, delivering a clean dispersion without gritty residue.
Utilized in anti-aging collagen companion powders and skin-brightening stick packs, leveraging its capacity to inhibit collagenase and elastin degradation.
Product Processing
Standard and Certificates