Process for extracting plants

Patent metadata

Field	Value
Publication number	US-2020375879-A1
Application number	US-202016883058-A
Country	US
Kind code	A1
Filing date	May 26, 2020
Priority date	May 28, 2019
Publication date	Dec 3, 2020
Grant date	—

Abstract

A process for the preparation of a plant extract enriched in polyphenols and/or substantially free of simple sugars, as well as the plant extract thus obtained, which may be added to a cosmetic composition. Also, the use of a yeast of the variety Saccharomyces cerevisiae var. bayanus for the removal of simple sugars in a plant extract.

First claim

1 . A process for the preparation of a plant extract enriched in polyphenols and/or substantially free of simple sugars, comprising a step of fermentation of a plant extract with a yeast belonging to the variety Saccharomyces cerevisiae var. bayanus.

2 . The process according to claim 1 comprising, prior to the fermentation step, the preparation of a plant extract by means of the following steps:
a) extraction of at least one plant with at least one alcoholic solvent and/or water;
b) filtration of the mixture obtained in a) in order to remove plant residues;
c) optionally, decolorization of the mixture obtained in step b); and
d) removal of the solvent and concentration of the extract obtained.

3 . The process according to claim 1 , wherein said yeast of the variety Saccharomyces cerevisiae var. bayanus is selected from the group consisting of yeasts of the strains IOC Fizz+, IOC Divine, IOC 18-2007 and mixtures thereof.

4 . The process according to claim 3 , wherein said yeast of the variety Saccharomyces cerevisiae var. bayanus is a yeast of the IOC Fizz+ strain.

5 . The process according to claim 3 , wherein said yeast of the variety Saccharomyces cerevisiae var. bayanus is a yeast of the IOC Divine strain.

6 . The process according to claim 3 , wherein said yeast of the variety Saccharomyces cerevisiae var. bayanus is a yeast of the IOC 18-2007 strain.

7 . The process according to claim 1 , wherein the plant extract is an extract of plant, preferably of flowering plant, and more preferably of flower.

8 . The process according to claim 7 , wherein the flower is a flower of Lilium candidum, Myosotis sylvatica, Sambucus sp., Camellia sp., Primula sp., Polianthes tuberosa, Jasminum grandiflorum, Plantago lanceolata, Cydonia oblonga, Prunus armeniaca or Plumeria sp.

9 . The process according to claim 1 , wherein the fermentation step is carried out by means of a leaven prepared from the fermentation of a concentrated plant extract with the strain of Saccharomyces cerevisiae var. bayanus.

10 . A plant extract obtainable by the process of claim 1 .

11 . A plant extract comprising:
5.00 to 100.00% of polyphenols by weight, particularly 5.00 to 85.00% of polyphenols by weight, more particularly 55.00 to 85.00% of polyphenols by weight; and/or less than 20.00% by weight, particularly less than 10.00% by weight, preferentially less than 5.00% by weight, even more preferably less than 1.00% by weight of simple sugars.

12 . The plant extract according to claim 11 , wherein said extract comprises:
5.00 to 100.00% of polyphenols by weight; particularly 5 to 85% of polyphenols by weight, more particularly 55 to 85% of polyphenols by weight; and less than 20.00% by weight, particularly less than 10.00% by weight, preferentially less than 5.00% by weight, even more preferably less than 1.00% by weight of simple sugars.

13 . The plant extract according to claim 11 , wherein said extract is free of simple sugars.

14 . A cosmetic composition comprising a plant extract according to claim 11 .

15 . A method for the removal of simple sugars in a plant extract comprising a step of using yeasts of the variety Saccharomyces cerevisiae var. bayanus.

Assignees

• Chanel Parfums Beaute

Inventors

• Toribio Alix
• Legangneux David
• Cocandeau Vincent

Classifications

• A61K8/9789 Primary

  Magnoliopsida [dicotyledons] · CPC title

• A61K2800/85

  Products or compounds obtained by fermentation, e.g. yoghurt, beer, wine · CPC title

• A61Q19/08

  Anti-ageing preparations · CPC title

• A61K8/9794

  Liliopsida [monocotyledons] · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title