Description
A standardized extract from Grapefruit (Citrus paradisi) seeds and pulp, principally standardized to naringin content. The compound is the bitter flavanone glycoside characteristic of grapefruit, used in cardiovascular-support supplements, weight-management formulations, and as a natural antimicrobial in food and cosmetic applications.
Light yellow to yellow-brown free-flowing powder. Limited water solubility; freely soluble in alcohol.
We supply food-grade Grapefruit Seed Extract from manufacturers in China holding ISO, Halal, Kosher and other certifications relevant to the product and production.
Common market grades include 50 percent Naringin (cost-effective baseline), 80 percent Naringin (standard supplement grade), 95 percent Naringin (premium grade), 98 percent Naringin (high-purity grade), and 4:1 to 10:1 fruit-pulp extracts for natural-positioning food applications.
Bulk and reduced-MOQ shipments. Batch-level COA covering naringin content (HPLC), total flavonoids, residual solvents, heavy metals, pesticides, and microbiology.
Introduction
Grapefruit Seed Extract emerged commercially in the 1970s as a natural antimicrobial preservative alternative, with broad-spectrum activity against bacteria, yeasts, and fungi. The principal active naringin is the bitter flavanone glycoside responsible for grapefruit's characteristic bitterness.
Industrial production proceeds by ethanol or hydroalcoholic extraction of grapefruit seeds and pulp, followed by chromatographic purification and standardization to defined naringin content. Premium high-purity grades serve as feedstock for the synthesis of naringin dihydrochalcone (NHDC), an intense sweetener catalogued separately.
Recognized as a permitted food ingredient by the U.S. FDA, the European Food Safety Authority, and equivalent regulators worldwide.
Naringin and its aglycone naringenin have documented cardiovascular activity in animal and clinical research, including lipid-lowering and endothelial-function effects. The compound is also known to inhibit specific cytochrome P450 enzymes, the mechanistic basis for the well-known grapefruit-juice drug-interaction phenomenon.
Strategic positioning serves cardiovascular and weight-management dietary supplements, natural-preservative food applications, and the NHDC sweetener feedstock market.
Where it is used
- Cardiovascular-support dietary supplements: cholesterol and vascular-health formulations
- Weight-management and metabolic-health supplements
- Natural antimicrobial applications in food preservation and cosmetic preservatives
- Functional beverages: bitter-citrus and wellness drink formulations
- Cosmetic skincare: antioxidant, brightening, and antimicrobial formulations
- Feedstock for naringin dihydrochalcone sweetener synthesis
- Premium pet supplements positioned for cardiovascular health
Technical data
| Item | Specification |
|---|---|
| Appearance | Light yellow to yellow-brown free-flowing powder |
| Naringin content (HPLC) | 50% / 80% / 95% / 98% (grade dependent) |
| Total flavonoids | ≥ 80% |
| Loss on drying | ≤ 5.0% |
| Residue on ignition | ≤ 5.0% |
| Heavy metals (as Pb) | ≤ 2 mg/kg |
| Total plate count | ≤ 1000 cfu/g |
| Source | Citrus paradisi seeds and pulp |
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