Sophora japonica flower is one of the richest botanical sources of flavonoids, containing both quercetin and rutin. Extracting quercetin directly from these dried buds yields a highly pure, bioavailable supplement compared to synthetic alternatives.
Producing quercetin from rutin involves cleaving the rutinose sugar moiety from the rutin molecule, converting the glycoside into the aglycone (quercetin). This is typically achieved through acid hydrolysis or enzymatic biocatalysis.
Specification of Quercetin:
Quercetin Dihydrate 95%HPLC
Quercetin Dihydrate 98%UV
Quercetin Anhydrous 95%HPLC
Quercetin Key Benefits & Uses
Antioxidant Support: Helps scavenge free radicals and protects cells from oxidative stress.
Immune & Allergy Regulation: Supports a balanced immune response by helping maintain healthy, regular histamine levels.
Cardiovascular Health: May promote capillary strength, regulate blood vessel permeability, and support healthy circulation.
Production process of Quercetin:
Harvesting and Cleaning -> Pre-treatment-> Solvent Extraction -> Purification & Recrystallization -> Enzymatic Hydrolysis -> Filtration and Separation -> Spray Drying and Standardization -> Quality Control and Packaging
| General info | |
| Product Name | Quercetin Dihydrate |
| Botanical Name | Sophora Japonica |
| Plant Part | Bud flower |
| Extract Solvent | Water & Ethanol |
| Country of Origin | China |
| Assay | |
| Quercetin (on dried base) | NLT 95% HPLC |
| Physical Parameters | |
| Identification | Positive by TLC |
| Appearance | Yellowish powder |
| Taste & Odor | Characteristic |
| Solubility | Pratically soluble in water, soluble in aqueous alkaline |
| Particle Size | NLT 95% pass 80mesh |
| Loss on Drying | 9~12% |
| Ash | NMT 0.5% |
| Chemical Parameters | |
| Total heavy metals | NMT 10ppm |
| Arsenic (As) | NMT 1.0ppm |
| Lead (Pb) | NMT 2.0ppm |
| Cadmium (Cd) | NMT 0.3ppm |
| Mercury (Hg) | NMT 0.1ppm |
| Residual solvents (Ethanol) | NMT 5000ppm |
| Microbiological Parameters | |
| Total Plate Count | NMT 1,000 cfu/g |
| Total Yeast & Mold | NMT 100 cfu/g |
| E.Coli | Negative in 1g |
| Salmonella | Negative in 25g |
| Staphylococcus | Negative in 25g |
| Additional info | |
| Allergen Status | Alleergens free |
| Irradiation Status | Irradiation free |
| GMO Status | GMO free |
| Vegan Status | Suitable for Vegaterian |
| TSE-BSE Status | non-TSE/BSE |
| Shelf Life | 24 months |
| Packaging | Packed in paper-drums and double layers plastic-bag inside |
| Storage Conditions | Store in a well-closed container away from moisture, light, oxygen |
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