activities. The reaction catalyzed by prenyltransferases represents a Friedel–Crafts alkylation of the flavonoid skeleton in the biosynthesis of natural prenylflavonoids and often contributes to the structural diversity and biological activity of these compounds. However, only a few plant flavonoid prenyltransferases have been identified thus far, and these prenyltransferases exhibit strict substrate
This invention relates to xanthohumol-based compositions, yielded in a hot-melt extrusion process (HME) using one or more water-soluble nutritionally and/or cosmetically acceptable thermoplastic polymers, such as selected from hydroxypropylmethyl-cellulose (HPMC), a vinylpyrrolidone-vinyl acetate copolymer, and combinations thereof. The present invention also relates to topical and oral formulations comprising such extruded xanthohumol-based compositions, as well as the use of one or more water-soluble nutritionally and/or cosmetically acceptable thermoplastic polymers in a hot-melt extrusion process of xanthohumol.
Hair and/or Scalp Care Compositions Incorporating Flavonoid Compounds
申请人:Bhogal Ranjit
公开号:US20080207928A1
公开(公告)日:2008-08-28
The invention provides a hair and/or scalp care composition comprising a flavonoid compound of general formula (I) in which: R
1
, R
3
and R
4
are each, independently, —H,—F,—Cl,—Br,—I,—OH, lower alkyl (e.g. C
1-6
alkyl) or lower alkoxy (e.g. C
1-6
alkoxy); and R
2
is —H or an alkenyl group.
XANTHOHUMOL-BASED COMPOSITIONS
申请人:Remon Jean Paul
公开号:US20200155425A1
公开(公告)日:2020-05-21
This invention relates to xanthohumol-based compositions, yielded in a hot-melt extrusion process (HME) using one or more water-soluble nutritionally and/or cosmetically acceptable thermoplastic polymers, such as selected from hydroxypropylmethyl-cellulose (HPMC), a vinylpyrrolidone-vinyl acetate copolymer, and combinations thereof. The present invention also relates to topical and oral formulations comprising such extruded xanthohumol-based compositions, as well as the use of one or more water-soluble nutritionally and/or cosmetically acceptable thermoplastic polymers in a hot-melt extrusion process of xanthohumol.