Microencapsulated MK-4

Microencapsulated MK-4 is menaquinone-4, a form of vitamin K2, supplied by Nustras as a free-flowing powder in which the active is enclosed in a protective matrix for dry supplement and premix formulations. Menaquinone-4 is a fat-soluble naphthoquinone with a four-unit isoprenoid side chain; the microencapsulated format protects it from light, oxygen and alkaline conditions.

It is formulated into vitamin K2 and multivitamin supplements in capsule, tablet and powder form, vitamin and mineral premixes, fortified foods and powdered beverages, wherever a dry, dispersible vitamin K2 ingredient is required.

The material is a powder, typically white to pale yellow; the active menaquinone-4 has molecular formula C31H40O2 and molecular weight 444.6. Menaquinone-4 content is confirmed by HPLC, identity by its chromatographic retention and UV spectrum, and the material is standardised to specification. Heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies microencapsulated MK-4 in bulk commercial quantities, in sealed light-protected packaging and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Vitamin K2 as menaquinone-4 is an accepted supplement ingredient in major markets; buyers confirm the vitamin K2 contribution, grade and permitted level for their application. Contact us for grade, pricing per kilogram and lead time.