Development of menaquinone-7 enriched nutraceutical: inside into medium engineering and process modeling

Convergent Synthesis of Menaquinone‐7 (MK-7)

A practical synthesis of menaquinone-7 (MK-7, vitamin K2) in the all-trans form was designed. Stereoselective synthesis of MK-7 was achieved through a “1 + 6” convergent strategy by condensation of two building blocks, menadione monoprenyl derivative (fragment “1”) with hexaprenyl bromide (fragment “6”, 82%). Pd-catalyzed desulfonation with LiEt3BH (78%) was followed by oxidation of the hydroqu...

architecture and engineering of nanoscale sculptured thin films and determination of their properties

چکیده ندارد.

Microbial process of menaquinone production.

Comparison of menaquinone-4 and menaquinone-7 bioavailability in healthy women

BACKGROUND Vitamin K₂ contributes to bone and cardiovascular health. Therefore, two vitamin K₂ homologues, menaquinone-4 (MK-4) and menaquinone-7 (MK-7), have been used as nutrients by the food industry and as nutritional supplements to support bone and cardiovascular health. However, little is known about the bioavailability of nutritional MK-4. To investigate MK-4 and MK-7 bioavailability, nu...

Modeling the Requirements Engineering Process

Information System Engineering has made the assumption that an Information System is supposed to capture some excerpt of the real world history and hence has concentrated on modeling. This has caused the introduction of a large variety of models and especially conceptual models by which an information system can be modelled in high level conceptual terms. By contrast, very little attention has ...