How do I choose between the 1% and 5% grades?
By carrier. Liquid beverages, powdered drinks and other liquid or reconstituted systems usually take the 1% grade (recommended 750–1,500 mg/day); tablets, capsules and other dosage forms with limited unit size take the 5% grade (recommended 150–360 mg/day). Lower-strength versions can also be supplied to optimise cost where the formulation allows.
Will it make a beverage hazy or taste grassy?
This is exactly where our process focuses. Fine filtration plus ultrafiltration and nanofiltration give an instant, clear solution; for dairy and tea systems an improved-taste version is available (HerbFlav™ flavour technology). A 1% aqueous solution is stable across pH 3–12 and passes the alcohol test. We recommend requesting samples and testing them in your actual system.
How is 1-DNJ quantified?
1-DNJ is the marker, determined by HPLC, with a COA. We recommend comparing and dosing on marker content rather than extraction ratio.
Why the emphasis on water extraction?
Food-grade purified water is the extraction solvent and no organic solvent is used, so there is no solvent-residue test item. Chinese herbal extraction has a long tradition and history of use with water, and this route falls within the scope of recognised traditional processing in China; for export customers it means a simpler solvent-residue file and a clearer process narrative.
What is the regulatory status in overseas markets?
Market-access pathways and permitted claims differ by market and must be assessed one by one. Our regulatory team can provide an assessment for a specific market and use; please state your target market and application format when you contact us.
Can you supply custom grades or combinations?
Yes. Custom versions already exist for dairy applications (an improved-taste version and a light-colour version), and we can provide combination proposals and full-service support from ingredient to finished product based on your formulation needs.
How do I obtain the specification, COA and samples?
Describe your application and target market in the form above; your account manager will arrange quality documents and samples. Unpublished data is provided under NDA.