Tremella extract and its preparation method and application
Technical field
The present invention relates to tremella extract and its preparation method and application, belong to cosmetic technical field.
Background technology
Skin is by epidermis, corium, subcutaneous tissue up of three layers, and every layer all contains moisture.The number of moisture content of skin is that skin is young
Tender, plentiful, glossy Yu whether soft key.With advancing age, skin moisture-keeping mechanism sustains damage, and skin histology is thin
Born of the same parents and intercellular moisture reduce, and when horny layer moisture drops to below 10%, skin will seem dry, lose bullet
Property, wrinkling, accelerate skin aging.Additionally, skin suffers the infringements such as sweltering heat, cold, wind, cleaning agent, ultraviolet radiation,
Top layer can become more to be dried.The most how to keep the moisture of skin, reduce moisture loss particularly significant.
Tremella is also referred to as Tremella, Tremella, Tremella etc., belongs to Mycophyta Tremellaceae Tremella, is a Basidiomycota fungus silver
The sporophore of ear, has the laudatory title of " hat in bacterium ".The nutritional labeling of Tremella is the abundantest, containing protein, fat in Tremella
With several amino acids, mineral and glycogen.It is famous and precious nutritious tonifying good merchantable brand, is again the strong tonic of righting.Successive dynasties emperor
Tremella is regarded as " product of life lengthening ", " good medicine alive for evermore " by family noble.Research finds, containing abundant many in Tremella
Glycoprotein vitamin etc., so Tremella extract has moisturizing, anti-ageing wrinkle removing and the effect of Firm, often apply and freckle can also be gone yellow
Brown patch etc..Such as rich in great amount of hydroxy group, carboxyl isopolarity group in tremella polysaccharide molecule, hydrogen bond can be formed with hydrone, thus
In conjunction with substantial amounts of moisture.It is intermolecular is intertwined to form netted, and the hydrogen in hydrone is combined, and has extremely strong lock water moisturizing
Performance, plays efficient moisture-retention skin-protecting function.Therefore, Tremella extract can be widely applied in beauty and skin care, plays moisturizing
Holding, whitening anti-aging etc. act on.
At present, the extracting method of Tremella extract is generally Hot water extraction, and i.e. directly add water infusion by Tremella, obtains Tremella and carries
Taking thing, the polysaccharide extract rate of the method is the lowest, is primarily due to tremella spore wall thickness solid, and effectively extract tremella polysaccharide must
Broken wall treatment must be carried out.
Patent CN 101439014 A discloses a kind of Tremella extract, is prepared as follows and obtains: after being soaked by Tremella,
Add deionized water, and regulate pH value to 8.5~9.0, in 85~95 DEG C of isothermal reactions 3~5 hours;Filter the most successively
And concentration.The method due to Tremella 85~95 DEG C react after, solution viscosity increase, increase the difficulty of filtration,
And the Tremella extract effective ingredient concentration that obtains is the highest, needs further concentration, add production cost.
Summary of the invention
For disadvantages described above, present invention solves the technical problem that the preparation method being to provide a kind of tremella extract, pass through the method
The tremella extract prepared, has excellent moistening effect.
The preparation method of tremella extract, comprises the steps:
A, steam process: the Tremella after soaking is placed in the water vapour of 70~100 DEG C, keeps 0.5~1.25h;
B, squeezing: the Tremella after being processed by steam carries out physical squeezing, solid-liquid separation, and gained liquid is tremella extract.
Preferably, the temperature of described physical squeezing is preferably 15~25 DEG C.
In a step, the Tremella after immersion preferably employs following method and obtains: dry tremella is put into immersion 2~8h in clear water, then
The excision root base of a fruit removes removal of impurity afterflush, drains, the Tremella after being soaked.
Preferably, in a step, Tremella is placed in the water vapour of 70~100 DEG C, keeps 1h;More preferably by Tremella
It is placed in the water vapour of 90 DEG C, keeps 1h.
Preferably, in b step, the temperature of described physical squeezing is preferably 20 DEG C.
The present invention also provides for the tremella extract that the inventive method prepares.
The present invention also provides for the tremella extract of the present invention purposes in skin moisture-keeping.
The tremella extract that preparation method of the present invention prepares, can be directly used for skin moisture-keeping, it is possible to add as effective ingredient
Use in cosmetics.
Another technical problem that the present invention solves is to provide a kind of moisture-keeping cosmetics.
Moisture-keeping cosmetics of the present invention, its active component contains tremella extract of the present invention.
Further, described moisture-keeping cosmetics is preferably emulsion, essence, astringent, toner/smoothing toner, facial film, protective skin cream, perfume (or spice)
Soap, toothpaste, shampoo or bath gel.These moisture-keeping cosmetics can be prepared by method well known to those skilled in the art.
Compared with prior art, there is advantages that
1) the inventive method is simple, and extraction separation method is easy, with low cost.
2) the inventive method need not any organic reagent and chemical substance, safety non-toxic when extracting, and the tremella extract obtained is
Pure natural substance.
3) the inventive method efficiently by Tremella extracts active ingredients out can be prepared by the method for the present invention the Tremella obtained and extract
Liquid, its moisturizing and whitening active ingredients concentration are high, and moisturizing whitening effect is good.
Detailed description of the invention
The preparation method of tremella extract, comprises the steps:
A, steam process: the Tremella after soaking is placed in the water vapour of 70~100 DEG C, keeps 0.5~1.25h;
B, squeezing: the Tremella after being processed by steam carries out physical squeezing, solid-liquid separation, and gained liquid is tremella extract.
The preparation method of tremella extract of the present invention, the Tremella after soaking is placed in water vapour steaming, treats that Tremella sufficiently absorbs water swollen
After swollen, then being squeezed the juice by the Tremella after water suction by physical squeezing, the nutrient substance such as the polysaccharide in Tremella dissolves in water, after solid-liquid separation,
I.e. obtain the tremella extract of the present invention.
Wherein, the method that Tremella soaks is techniques known, dry tremella can be put into immersion 2~8h in clear water, then
The excision root base of a fruit removes removal of impurity afterflush, drains, the Tremella after being soaked.
Use physical squeezing, can effectively destroy tremella spore wall, improve the active constituent content in tremella extract, it is preferred that
The temperature of described physical squeezing is preferably 15~25 DEG C.Pressing method commonly used in the art is all applicable to the present invention.
Preferably, in a step, Tremella is placed in the water vapour of 70~100 DEG C, keeps 1h;More preferably by Tremella
It is placed in the water vapour of 90 DEG C, keeps 1h.
Preferably, in b step, the temperature of described physical squeezing is preferably 20 DEG C.
The present invention also provides for the tremella extract that the inventive method prepares.
The present invention also provides for the tremella extract of the present invention purposes in skin moisture-keeping.
The tremella extract that preparation method of the present invention prepares, can be directly used for skin moisture-keeping, it is possible to add as effective ingredient
Use in cosmetics.
Moisture-keeping cosmetics of the present invention, its active component contains tremella extract of the present invention.
Moisture-keeping cosmetics of the present invention, possibly together with the acceptable adjuvant of cosmetic field.Described cosmetic field is acceptable
Adjuvant can be selected from: solvent, solubilizing agent, preservative, antioxidant, pH adjusting agent, penetrating agent, liposome, thickening agent, chela
Mixture, skinfeel regulator, surfactant, emulsifying agent, essence, pigment, and other functional additives.
Further, described moisture-keeping cosmetics is preferably emulsion, essence, astringent, toner/smoothing toner, facial film, protective skin cream, perfume (or spice)
Soap, toothpaste, shampoo or bath gel.These moisture-keeping cosmetics can be prepared by method well known to those skilled in the art.
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described, the most therefore limits the present invention to institute
Among the scope of embodiments stated.
Embodiment 1
Adopt and prepare tremella extract with the following method: 1) soak: take Tremella 100g, put into immersion 4h in clear water, then
The excision root base of a fruit removes removal of impurity afterflush, drains standby;2) steam processes: the Tremella after soaking is placed in the water vapour of 70 DEG C,
Keep 0.5h;3) squeezing: the Tremella after being processed by steam carries out physical squeezing at 20 DEG C, filters, obtains tremella extract
100g, detects active constituent content therein, and it the results are shown in Table 2.
Embodiment 2~4
Use embodiment 1 method, change water vapour temperature and process the time, physical squeezing temperature, its preparation parameter and
The quality of the tremella extract obtained is shown in Table 1, detects active constituent content therein, and it the results are shown in Table 2.
Table 1
Comparative example 1
Using Hot water extraction to prepare tremella extract, after being soaked as described in Example 1 by 100g Tremella, add water infusion, protects
Water holding fluidized state 0.5h, takes liquid after solid-liquid separation, evaporation and concentration, to 100g, detects active constituent content therein, its knot
Fruit is shown in Table 2.
Comparative example 2
Patent CN 101439014A method is used to prepare tremella extract, after 100g Tremella is soaked as described in Example 1,
Add 10kg deionized water, add NaOH regulation pH value under room temperature to 8.5, and every after reacting measure system the most every other hour
PH value, is allowed to keep stable;Constant temperature 90 DEG C, reacts 4 hours;About 50 DEG C (non-scald on hand), 200 mesh gauze sucking filtration are to clarification
Transparent (sucking filtration 1~2 times), filter paper filtering is once;Concentrated by rotary evaporation, to 100g, detects active constituent content therein, and its result is shown in
Table 2.
Table 2
Test example 1 moistening effect
Use human test's mode, carry out water content and the moisture loss mensuration of skin with moisture of skin tester, choose 60
Volunteer;Volunteer men and women half and half, is divided into 6 groups.Often group uses different tremella extracts to be coated on skin surface: each
Hour test once, totally 6 hours.The water content change of skin surface and water loss amount are shown in Table 3 the most respectively
With table 4 (in table, data are meansigma methods).Wherein, described different tremella extract is respectively the Tremella of embodiment 1~4 preparation
The tremella extract that extracting solution and comparative example 1 and comparative example 2 obtain.
Table 3
Table 4
From the data of table 3 and 4 it can be seen that the tremella extract obtained with direct infusion and use patent CN
The tremella extract that 101439014 A methods obtain is compared, the moisturizing of tremella extract prepared by the inventive method and lock water effect
Fruit more preferably, has more preferable moistening effect.