Background technology
Aloe is a kind of Liliaceae herbaceous plant, the torrid zone, evergreen, the fleshiness plant of subtropical zone property.Aloe is with a long history, as far back as ancient Egypt's epoch, its drug effect just is accepted, approves, be called " mysterious plant ", enjoy the laudatory title of " omnipotent good medicine ", " natural cosmetologist ", " magical plant " and " doctor Quan Ke ", Aloe is widely used in skin care field more and more at present.Aloe is rich in anthraquinones, polysaccharide, organic acid, protein, multiple essential amino acid, vitamin, mineral.Its characteristic component is Aloe anthraquinones class material, and kind more than 20 is arranged, and take aloin as main, has antitumor, antibacterial activity, immunosuppressive action, discharge function, eliminating toxin and beautifying the skin, acne and comedo are had sterilization, clear up malicious effect; The various carbohydrates that contain in Aloe, GL-PP and organic acid are natural wetting agents.The various compositions of Aloe have good percutaneous permeability, and good absorbing effect promotes cell metabolism and skin regeneration, is the fabulous raw materials of skin care item; Simultaneously, Aloe has again good compatibility, can be compatible with various cosmetic materials, improve the effect of skin care item.
Broadly see, the barrier function of skin not only refers to its physical barrier effect, also comprises the pigment barrier action of skin, neural barrier action, immunologic barrier effect and other all many-sides relevant to skin function; The skin barrier function of narrow sense mainly refers to physical barrier, jointly formed by sebum film, " sandwich " structure, brick wall structure etc., numerous compositions such as lipid, nature moisturizing factor aquaporin, mucopolysaccharide have been comprised, can resist the intrusion of extraneous chemistry, physics, machinery, biological factors, have the adjusting antiinflammatory action, can prevent that again moisture, nutrient substance from losing through epidermis.The keratodermatitis water content is 20%~35%, if lower than 10%, skin will dry, coarse, desquamation.If skin barrier function generation obstacle can make moisture of skin lose, thereby causes multiple dermatosis of being correlated with therewith, as senile skin pruritus, housewife's hands, atoipc dermatitis, psoriasis etc.; And skin sensitivity is rubescent, microgroove, Pigmented generation also descend with skin barrier function, and loss of moist has inseparable relation.
Be exactly that when better safeguarding skin barrier function, skin moisture-keeping has become the important step of basic skin nursing naturally when increasing people recognizes the key problem of skin nursing.Yet skin moisture-keeping is not simple skin moisturizing process, can only make the horny layer shallow-layer temporarily moisture for merely the skin moisturizing, and the moisture that replenishes like this is easy to evaporation, and the very fast drying regime of can recovering again of skin even becomes than drier in the past.Good wetting agent be the more important thing is and can by replenishing the nature moisturizing factor of losing in cell, be reached the effect of repairing and keeping normal stratum corneum barrier function except keeping the skin wet.
Summary of the invention
The present invention is in order to solve above-mentioned problems of the prior art, a kind of aloe moisture-keeping liquid is provided, make it have good skin moisture-keeping and nourishing effect, can promote the skin cell metabolism again simultaneously, reach the effect of repairing and keeping normal stratum corneum barrier function.
Aloe moisture-keeping liquid of the present invention comprises active substance and substrate, and described active substance comprises Aloe gel lyophilized powder, oat beta-glucan and hyaluronate sodium.
In the present invention, the mass fraction of described Aloe gel lyophilized powder is 0.1~5%, and the mass fraction of described hyaluronate sodium is 0.3~5%, and the mass fraction of described oat beta-glucan solution is 6~99%, and the content of described substrate is surplus.Preferably, the mass fraction of described Aloe gel lyophilized powder is 1~2.5%, and the mass fraction of described hyaluronate sodium is 0.5~1.5%, and the mass fraction of described oat beta-glucan solution is 40~50%.
In the present invention, in described oat beta-glucan solution, the mass fraction of oat beta-glucan is 0.9-1.1%.
In the present invention, the preparation method of described Aloe gel lyophilized powder comprises following steps:
(1) take the Aloe Barbadensis Miller fresh leaf of the maturation of certain mass, clean, sterilize, remove the peel;
(2) the described Fresh leaf of aloe after step (1) processing is squeezed the juice with juice extractor;
(3) step (2) the is squeezed the juice Aloe juice that obtains is inserted in an extraction pot, adds the water of 2 times of quality of described Aloe juice, and temperature is 30~40 ℃, extracts 2-4 time, each 1-2 hour, merges the extracting solution of gained;
(4) the extracting solution centrifugal slagging-off of centrifuge that step (3) is obtained;
(5) to adding the 0.5-1.5wt% active carbon to decolour in the extracting solution after step (4) processing, stir 1h, hold over night, the Aloe gel juice that plate-and-frame filtration must be clarified;
(6) under normal temperature condition, utilize organic membrane equipment that described Aloe gel juice is separated and be condensed into low power Aloe gel concentrated juice, and through cryogenic vacuum simmer down to high power Aloe gel concentrated juice;
(7) drying: lyophilization Aloe gel lyophilized powder processed.
Wherein, said method is except being used for Aloe Barbadensis Miller fresh leaf, and other Folium Aloe also can use the method.Extraction time in described step (3) is 2 times further, each 2 hours.
In the present invention, the active carbon in described step (5) adopts 200 order active carbons.
A kind of skin care item comprise above-mentioned aloe moisture-keeping liquid, and wherein, the addition of described aloe moisture-keeping liquid in skin care item is 1-10wt%.
In the present invention, described skin care item are hand cream, cosmetic water, protective skin cream or cream for skin care.
Aloe moisture-keeping liquid of the present invention can be applicable to and improves in skin barrier function.
The invention has the advantages that: (1) add in skin care item extract preparation from natural medicine-food dual purpose plant Aloe the Aloe gel lyophilized powder as the moisturizing composition, safety non-toxic meets the cosmetics safety that present country advocates; (2) the Aloe gel lyophilized powder is combined with other active component, be prepared into one group of aloe moisture-keeping liquid that can improve skin barrier function, can significantly improve moisture content of skin, reduce epidermis percutaneous water loss (TEWL).
The specific embodiment
Agents useful for same of the present invention and raw material be commercially available getting all.
Further set forth advantage of the present invention below by the specific embodiment.But the present invention includes but be not limited to concrete formula and the composition of embodiment.
Embodiment one: the preparation of Aloe gel lyophilized powder
Choose growth cycle at the ripe Aloe vulgaris blade more than 3 years, after cleaning up and carrying out disinfection, send into thoroughly peeling in skinning machine after the head of artificial removal's blade and afterbody, and Folium Aloe is not subjected to the extruding of vertical direction when controlling peeling.With the Aloe gel processing of in time squeezing the juice after peeling, and will squeeze the juice that to obtain be that Aloe gel is inserted in multi-function extractor immediately, and avoid Aloe gel to contact with air.The water that adds 2 times of quality, temperature are 30~40 ℃, extracts 2 times, and each 2 hours, merge extractive liquid; With adding the 0.5-1.5wt% active carbon after centrifugal slagging-off, stir 1h, hold over night, plate-and-frame filtration is processed the Aloe gel juice that obtains clarifying, and wherein, the aperture of filter paper is 0.45 μ m~2 μ m; Subsequently under normal temperature condition, utilize the organic membrane device separates be condensed into low power Aloe gel concentrated juice, through cryogenic vacuum simmer down to high power Aloe gel concentrated juice, and make the Aloe gel lyophilized powder through lyophilization.
Embodiment two: the preparation of aloe moisture-keeping liquid 1
Take sterile deionized water as solvent, add 1.5% Aloe gel lyophilized powder, 1.5% hyaluronate sodium and 40% oat beta-glucan (content is 1%), through samming (4 ℃ of cold preservation 48h), filter by (0.45 μ m water system film+2 layers of qualitative filter paper), (hydroxyethyl-cellulose is dissolved in glycerol to add at last 10% hydroxy ethyl fiber cellulose solution thickening, concentration is 2%), namely get aloe moisture-keeping liquid 1.
Embodiment three: the preparation of aloe moisture-keeping liquid 2
Take sterile deionized water as solvent, add 2% Aloe gel lyophilized powder, 1% hyaluronate sodium and 50% oat beta-glucan (content is 1%), through samming (4 ℃ of cold preservation 48h), filter by (0.45 μ m water system film+2 layers of qualitative filter paper), (hydroxyethyl-cellulose is dissolved in glycerol to add at last 10% hydroxy ethyl fiber cellulose solution thickening, concentration is 2%), namely get aloe moisture-keeping liquid 2.
Embodiment four: the preparation of aloe moisture-keeping liquid 3
Take sterile deionized water as solvent, add 2.5% Aloe gel lyophilized powder, 0.5% hyaluronate sodium and 60% oat beta-glucan (content is 1%), through samming (4 ℃ of cold preservation 48h), filter by (0.45 μ m water system film+2 layers of qualitative filter paper), (hydroxyethyl-cellulose is dissolved in glycerol to add at last 10% hydroxy ethyl fiber cellulose solution thickening, concentration is 2%), namely get aloe moisture-keeping liquid 3.
Embodiment five: the preparation of moisturizing spraying
Table 1 moisturizing spray formula
Preparation technology:
1. first hyaluronate sodium is dispersed in glycerol, then adds dissipation of heat (85 ℃), add other components of A phase to stir after being uniformly dispersed;
2. D is dissolved each other mutually in advance;
3. A is cooled to mutually 45 degree, adds B, C, D phase;
4. the rear discharging .PH that stirs is controlled at 5.5-7.0.
Embodiment six: the preparation of emollient cream
Table 2 emollient cream formula
Preparation technology:
1. first hyaluronate sodium is dispersed in glycerol, then adds dissipation of heat (85 ℃), add other components of B phase to stir after being uniformly dispersed;
With A mutually each component mix homogeneously in 85 ℃, fully mix; C is fully dissolved mutually stir;
3. with D each component mix and blend mutually, suitably be heated to dissolving and be transparence and get final product;
4. before homogenizing, C, D are added to A and stir mutually, then add together the B phase, homogenizing stirred 4 minutes;
5. the complete stirring froth breaking of homogenizing, and cooling; Add mutually each component of E in 45 ℃, the rear discharging that stirs, PH is controlled at 5.5-7.0.
Embodiment seven: the preparation of hand cream
The hand cream formula
Preparation technology:
1. first hyaluronate sodium is dispersed in glycerol, then adds dissipation of heat (85 ℃), add other components of B phase to stir after being uniformly dispersed;
With A mutually each component mix homogeneously in 85 ℃, fully mix; C is fully dissolved mutually stir;
3. during homogenizing, A is added to the B phase, opens homogenizer, add simultaneously the C phase, homogenizing stirred 4 minutes;
4. the complete stirring froth breaking of homogenizing, and cooling; Add mutually each component of D in 45 ℃, the rear discharging that stirs, PH is controlled at 5.5-7.0.
Effect embodiment one: the impact on moisture content of skin and percutaneous water loss (TEWL) of hand cream and aloe moisture-keeping liquid 2
Test instrunment and equipment
(1) moisture content of skin tester Corneometer CM825(Germany CK company)
(2) transepidermal water loss TEWL tester Tewameter TM300(Germany CK company)
Testing procedure:
(1) specimen is: hand cream substrate, hand cream and aloe moisture-keeping liquid 2.
(2) the test position is that a left side or right hand forearm are inboard, and the inboard is divided into three sections, counts from rasceta, and 3-8cm is first paragraph, is designated as position 1; 8-13cm is second segment, is designated as position 2; 13-18cm is the 3rd section, is designated as position 3.The experimenter uses cleaning agent (liquid detergent) cleaning left and right arms under the tester instructs, blot excessive moisture with flushing with clean water is totally rear with napkin.
(2) experimenter began test after in constant temperature and humidity room (temperature 20-22 ℃, humidity 40%-60%) standing 40 minutes; The tester needs recording test time, room real time humiture.
(3) detect respectively water content and the TEWL value of experimenter's arm 1,2,3 position skins with instrument, each detects 3 sites (centre of test section, 3 the flat points of fetching water, every some interval 1cm), and data measured is the 0th day result.
(4) experimenter need sooner or later to use every day cleaning agent clean a left side or right arm each once, clean complete after, hand cream substrate is smeared at position 1, hand cream is smeared at position 2, aloe moisture-keeping liquid is smeared at position 3.Sample using method: get appropriate sample and evenly be applied in test zone, suitably massage until sample is absorbed by the skin fully.
(5) test is followed up a case by regular visits in the 2nd day of carrying out in test of experimenter.The experimenter uses a cleaning agent cleaning left side or right arm under the tester instructs, blot excessive moisture with flushing with clean water is totally rear with napkin.
(6) experimenter began test after in constant temperature and humidity room (temperature 20-22 ℃, humidity 40%-60%) standing 40 minutes; The tester needs recording test time, room real time humiture.
(7) detect respectively water content and the TEWL value at experimenter position 1,2,3 with instrument, method together 3.3, the data obtained is designated as the 1st day result.
(8) test is followed up a case by regular visits in the 4th day, the 7th day of carrying out in test of experimenter, and method is with (5)-(7), and the data obtained is designated as respectively the 4th day and the 7th day result.
Statistical analysis:
Employing SPSS17.0 version statistical software analyzes, and adopts independent sample T check, and P<0.05 is for there being significant difference, and P<0.01 is utmost point significant difference.
Test result:
(1) comparison of change of moisture content
As accompanying drawing 1, use the arm position of hand cream substrate, the variation of its water content is the trend of reduction; And obviously raise with the water content at the arm position of hand cream and aloe moisture-keeping liquid 2, and aloe moisture-keeping liquid 2 is better than hand cream.Two groups relatively have statistical significance, and P<0.05 is before VS uses.
(2) comparison of TEWL variation
As accompanying drawing 2, clean hand with liquid detergent, the barrier function of hand is damaged.Use the TEWL at the arm position of hand cream substrate, hand cream and aloe moisture-keeping liquid 2 all to raise to some extent, it is more obvious that but the TEWL that uses the arm position of hand cream substrate raises, secondly for using the arm position of hand cream, use the variation of TEWL at arm position of aloe moisture-keeping liquid minimum.This shows, hand cream and aloe moisture-keeping liquid have repair to epidermal barrier function, and aloe moisture-keeping liquid is better than hand cream.Statistical significance is relatively arranged, P<0.05.
Should be understood that, wt% of the present invention all refers to the quality percentage composition.
Above specific embodiments of the invention are described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.