Toilet – Methods – Hair treatment by application of specific chemical composition
Reexamination Certificate
1999-10-13
2001-04-17
Philogene, Pedro (Department: 3732)
Toilet
Methods
Hair treatment by application of specific chemical composition
C132S203000, C132S200000, C424S070120
Reexamination Certificate
active
06216707
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention concerns the field of cosmetology and pharmacology, in particular cutaneous and capillary applications, and relates to the use of at least one
Irvingia gabonensis
extract in a cosmetic and/or pharmaceutical product for the skin and/or the superficial body growths and to a cosmetic and/or pharmaceutical product containing such extract(s).
DESCRIPTION OF THE RELATED ART
Irvingia gabonensis
(also known as the wild mango tree) is a tree which is prevalent in the rain forests of Central and West Africa and of which the oblong fruit has a hard stone surrounded by fibrous, edible flesh and containing two seeds resembling almonds.
These seeds, which are crushed and mixed with water, pepper or other condiments, are widely used in Africa as a thickener in the preparation of soups.
The chemical composition of the Irvingia seed is as follows, according to the literature (see OL OKE, Nutrition reports international, 1978, vol. 17 No. 3, 293-297 and ONYECHI E. N., Food Chemistry, 1995, 53.2, 173-175):
proteins:
8.8-10.6%
lipids:
55-62.2%
carbohydrates:
19.2-19.6%
fibers:
8.2%
The oil of
Irvingia gabonensis
seeds, which is solid at ambient temperature, contains, in particular, 55 to 59% of myristic acid and 35 to 36.3% of lauric acid.
The potential use of Irvingia fat in the preparation of margarine, kitchen oil, soap and pharmaceutical products has been mentioned. This fat has been investigated, in particular, for the preparation of suppositories or as a lubricant for granules or tablets.
Furthermore, the use of
Irvingia gabonensis
polysaccharides as thickeners or as sources of carbohydrates for diabetics in food products and as thickeners or binders in the pharmaceutical industry has been mentioned.
SUMMARY OF THE INVENTION
Now the inventors of the present invention have unexpectedly and surprisingly found that, apart from their known thickening properties, the extracts of
Irvingia gabonensis
, in particular the polysaccharide fractions of
Irvingia gabonensis
, could be used directly in cosmetic and pharmaceutical products for external application and had immediate properties which were more varied and quantitatively greater than the polysaccharides already used at present in cosmetic or pharmaceutical products, namely moisturising, film-forming, softening and restructuring properties.
Similarly, it has been found that the lipidic or fatty fraction could also be used in such products and had particular properties such as good chemical stability and weak colouring.
Thus, the general object of the present invention is to use at least one
Irvingia gabonensis
extract as active agent(s) for the preparation of a cosmetic and/or pharmaceutical product for topical use for the skin and/or the superficial body growths, this or these extract(s) preferably being obtained from the seeds of the
Irvingia gabonensis
tree.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
According to a first embodiment of the invention, the extract used consists of the polysaccharide fraction of the seeds, optionally in the form of crude polysaccharide extract.
According to a second preferred embodiment of the invention, the extract used consists of a part of the polysaccharide fraction of the seeds, optionally in the form of a purified polysaccharide.
In this case, the polysaccharide fraction or the polysaccharide is preferably extracted from the seeds of the
Irvingia gabonensis
tree by water or aqueous solutions with a neutral, alkaline or acidic pH.
Finally, according to a third embodiment of the invention, the extract used can consist of the lipidic or fatty fraction of
Irvingia gabonensis
seeds alone or associated with the polysaccharide fraction or a part of the polysaccharide fraction of said seeds.
The processes for obtaining and preparing the various extracts of
Irvingia gabonensis
mentioned above lie within the general knowledge of a person skilled in the art in the field of cosmetology and pharmacology.
Various possible processes for obtaining extracts from
Irvingia gabonensis
seeds, in particular fat and polysaccharides, used in the context of the present invention will be described hereinafter as non-limiting embodiments.
REFERENCES:
patent: 3964500 (1976-06-01), Drakoff
patent: 6045779 (2000-04-01), Mueller et al.
patent: 6071504 (2000-06-01), Kawai et al.
patent: 6076530 (2000-06-01), Braida-valerio et al.
Eugene N. Onyeike et al., “Effect of Heat-Treatment and Defatting on the Proximate Composition of Some Nigerian Local Soup Thickeners”, Food Chemistry, vol. 53, No. 2, 1995, GB, pp. 173-175.
J. O. Onyechi et al., “The Tabletting Properties of Dika Fat Lubricant”, Drud. Dev. Ind. Pharm., vol. 16, No. 7, 1990, pp. 1203-1216.
Laboratoires Serobiologiques (Societe Anonyme)
Philogene Pedro
Young & Thompson
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