JPS6383012A - Cosmetic - Google Patents

Abstract

PURPOSE:To obtain a cosmetic having improved moisture-retainability without increasing oil absorption, by pulverizing beta-1,3-glucan of yeast cell wall and compounding the powder to a cosmetic. CONSTITUTION:Protein in cell wall of beer yeast is hydrolyzed with a proteinase, heat-treated to deactivate the enzyme and cooled. The product is centrifuged to separate slurry solid composed mainly of the cell wall of yeast. The unreacted component is solubilized and removed with an alkali, the remaining part of the slurry is neutralized with citric acid and the product is dried to obtain beta-1,3-glucan powder. The powder is added to a cosmetic at an amount of 0.1-50%, preferably 1-20%.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cosmetic containing powdered β-1,3-glucan from yeast cell walls.

[Conventional technology]

There are a variety of powders used in cosmetics, including inorganic pigments and organic pigments, but is it possible to reduce the burden on the skin? In order to prevent makeup layers from fading, air permeability and moisture retention were improved by using porous or hollow pigments.

[Problem that the invention seeks to solve]

However, these methods have the disadvantage that the amount of oil absorbed increases in order to improve moisturizing properties, and sebum is absorbed after application, giving the skin a feeling of tightness and discomfort.

[Means for resolving intermittent points]

That is, the present invention considers the use of swelling properties as one of the methods of incorporating moisture into powder in order to increase only moisture retention without increasing oil absorption, and uses β- of yeast cell walls as the substance. By using 1,3-glucan, the above-mentioned drawbacks can be compensated for and a cosmetic having an excellent feeling of use can be provided.

Hereinafter, the configuration of the present invention will be explained in detail.

The method for producing yeast cell wall-derived powder is as follows.

Brewer's yeast (Saccharomycea cersv)
i81ae) in the cell wall is hydrolyzed with a proteolytic enzyme, the enzyme is inactivated by heat treatment, and then cooled. Next, by centrifugation, the muddy solid content, which is mainly composed of yeast cell walls, is removed, and further alkali (I) HI
After solubilizing and removing unreacted substances in step 3), a neutralization step (pH 6) is performed with citric acid, and the β-1,3-
Obtain glucan powder. Hereinafter, this powder will be referred to as yeast cell wall-derived powder.

Next, physical property data of this yeast cell wall-derived powder will be shown.

Table 1゜1) Oil absorption was measured using the method of J-Ko SK K5101, and flaxseed was used.

2) Water absorption was determined using the method of JXS K5101, and purified water was used.

3) Method for measuring swelling properties Five samples were dispersed in 95 g of water, and 100 g of the sample was dispersed in a stirring device.
After stirring at 0 rotations for 10 minutes, the sample was placed in a 100Mt graduated cylinder, and the volume occupied by the sample after 24 hours was measured.

Table 2゜4) Method for measuring sliding friction Attach double-sided tape to a flat glass plate and apply the sample evenly to the top surface. A load was applied (20 l/c
rl) Move a glass applicator over the sample surface at a constant speed (10 tns/sea) and read the resistance value at that time.

As can be seen from the above data, it can be seen that compared to conventional powders, yeast cell wall-derived powders have lower oil absorption and higher water absorption, and are smoother.

The type of yeast used for this is Satucharomyces%
(S & ccharomyaea), Kluyveromyces, Schizosaccharomyces
, Hen-aenula, Pichia, Debaryomyces
omyces), Rhodotorula (RhOdO-tOr
ula), the genus Candida, and the genus Torulopsis, and preferably the genus Satucharomyces.

The amount of yeast cell wall-derived powder in the present invention is 0.1
~50% is good, and more preferably 1~20%.

If it is less than 0.1%, the unique moisturizing effect of the present invention cannot be obtained, and if it exceeds 50%, it tends to give a strange feeling when using the cosmetic.

Next, the effects of the cosmetic containing the yeast cell wall-derived powder according to the present invention will be explained in detail with reference to Examples.

fruit frll 1 powder foundation 1 @ferric oxide 1,52, titanium oxide 73, mica
354, yeast cell wall-derived powder 105, talc
Remaining amount 6, squalane
5Z Glyceryl isooctanoate
78, Cetyl isooctanoate 3 (
Manufacturing method) 1 to 5 are stirred and mixed, a heated mixture of 6 to 8 is added thereto, and the mixture is mixed and pulverized. This is molded into a medium plate to form a Shibauda foundation.

Comparative example 1. Powder foundation silane 1, iron oxide 1.52, titanium oxide 73, mica
454, Talc
Remaining amount 5, squalane
56. Glyceryl isooctanoate
7Z Cetyl isooctanoate
3 (Manufacturing method) 1 to 4 are stirred and mixed, a heated mixture of 5 to 7 is added thereto, and the mixture is mixed and pulverized. This is molded into a medium plate and used as a powder foundation.

Table 3 shows the results of a sensory comparison between Example 1 and Comparative Example 1 by 15 experienced panelists.

The comparison method is a 5-level evaluation, with Comparative Example 1 as the standard and Panel 1 as the standard.
The average value of 5 people was used. The result was an overall excellent feeling of use, with a light spread, no powdery feeling, no tightness, and good makeup retention.

(Left below) Table-3゜Poor Same Good Example 2. Oil-based foundation 1, glyceryl isooctanoate remaining amount 2,
Iron oxide 23 Titanium oxide 154, Kaolin
105, talc
106, Yeast cell wall-derived powder
10Z Squalane
108 Micro wax 59
Candelilla Wax 210, Antioxidant Appropriate Amount (Production Method) After stirring and mixing 1 to 6, the mixture is pulverized using three rollers, dispersed in heated and dissolved 7 to 10, and then poured into a medium plate and solidified and molded. This base spreads easily and feels soft and moisturizing.

Example 5. Lipstick 1 Castor oil remaining 2 Titanium oxide 0538 Red No. 201 0.24 Red 2
No. 02 0.35, Pearl agent 8 & Yeast cell wall derived powder 5Z Paraffin wax
158, micro wax
79 Polybutene
510, Squalane 5
11. Antioxidant Appropriate amount (manufacturing method) After stirring and mixing 1 to 6, pulverize with three rollers, disperse in heated and dissolved 7 to 11, and pour into split molds to solidify and mold. The resulting lipstick had a more moist feel than conventional products and had a brighter color.

Example 4. Cream 1, squalane 52,
Methylphenylbolysiloxane 53, Microwax 34, Stearic acid 25, Setanol
16PoE(25) stearate 157 poE(2o) sorbitan monostearate 18, sorbitan monostearate 19 Purified water
Remaining amount: 10, potassium hydroxide
0.111, xanthan gum
0.212.1.3-Butylene gelicol
513, yeast cell wall-derived powder 514
, Preservative Appropriate Amount (Production Method) After heating and dissolving 1 to 8 at 80°C, a mixture of 9 to 14 heated and dissolved at 85°C is gradually added and emulsified.

Comparative example 2. Cream 1, squalane 52,
Methylphenylpolysiloxane 53, Microwax 34, Stearic acid 25, Setanol
16. POJ25) Stearate 1.5ZPOIC (20) Sorbitan monostearate 18. Sorbitan monostearate 12 Purified water
Remaining amount: 10, potassium hydroxide
0,111, xanthan gum
0.212.1.3-Butylene gelicol
513, glycerin 51
4 Preservative Appropriate amount (manufacturing method) Same as Example 4.

Example 4 and Comparative Example 2 were sensory evaluated by 12 experienced panelists. The results are shown in Table 4. The comparison method was a five-level evaluation, using Comparative Example 2 as the standard and using the average value of Spring/I/12 people. As a result, a moisturizing cream without stickiness was obtained.

(Margin below) Table-4゜ total evil Special Bad Same Good stomach permission 1

Claims (1)

[Claims] A cosmetic comprising powdered β-1,3-glucan from yeast cell walls.