Disclosure of Invention
The invention aims to provide a composition which can remarkably repair the skin after being sunburned for a long term, reduce uncomfortable symptoms such as stabbing pain, erythema, desquamation and the like, inhibit inflammatory reactions such as redness and swelling and remarkably remove free radicals, a preparation method thereof and a cosmetic.
In order to achieve the purpose, the invention adopts the following technical scheme:
the after-sun repair composition comprises the following components in parts by weight: 15-25 parts of a roselle extract, 10-20 parts of a abelmoschus manihot extract and 1-5 parts of sodium caseinate.
Preferably, the after-sun repair composition consists of the following components in parts by weight: 20-25 parts of a roselle extract, 10-15 parts of a abelmoschus manihot extract and 2-5 parts of sodium caseinate.
More preferably, the after-sun repair composition consists of the following components in parts by weight: 20 parts of a roselle extract, 15 parts of a abelmoschus manihot extract and 5 parts of sodium caseinate.
Further, the preparation method of the roselle extractive comprises the following steps:
naturally drying and crushing the roselle flower, adding 60-75% ethanol solution according to the weight volume ratio of 1 (20-100) g/ml, performing microwave treatment for 1-5 min at 300-500W, performing ultrasonic extraction for 15-60 min at 300-500W, filtering, and concentrating the filtrate to obtain the roselle flower.
Further, the concentrated Hibiscus sabdariffa L.is providedThe density of the extract is 1.02-1.15 g/cm3。
Further, the preparation method of the Abelmoschus manihot extract comprises the following steps:
naturally drying and crushing the abelmoschus manihot, adding water according to the weight-volume ratio of 1 (5-20) g/ml, heating and refluxing for extraction for 1-2 h, filtering, adding water according to the weight-volume ratio of 1 (5-10) g/ml into filter residues, heating and refluxing for extraction for 1-2 h, filtering, combining the two filtrates, and concentrating to obtain the abelmoschus manihot extract.
Furthermore, the density of the Abelmoschus manihot extract obtained after concentration is (1.02-1.20) g/cm3。
The abelmoschus manihot extract prepared by the invention has obvious sedative and anti-inflammatory effects, and the roselle has obvious free radical scavenging effect, and the abelmoschus manihot extract and the roselle are combined to be used for preparing the cosmetic composition, so that the damaged skin after being exposed to the sun can be effectively repaired, and the effects of synergistic anti-inflammatory, detumescence and free radical scavenging are achieved. However, in practice, the roselle extractive contains more organic acid, and although the roselle extractive has certain myogenic effect, the roselle extractive is easy to stimulate the skin. Aiming at the problem, the inventor discovers through a great deal of creative work that the irritation of the hibiscus sabdariffa extract can be remarkably reduced by adding a certain amount of sodium caseinate and combining the hibiscus sabdariffa extract, and meanwhile, the sodium caseinate increases the compatibility of the hibiscus sabdariffa extract and the hibiscus sabdariffa extract, improves the bonding property of the composition and the skin, can remarkably improve the effects of sedation, anti-inflammation and free radical removal for a long time, and can achieve the remarkable repairing effect after being used after being damaged for 8 hours after being exposed to the sun.
In addition, the invention also provides a cosmetic containing the after-sun repair composition.
Furthermore, the addition amount of the after-sun repair composition in the cosmetics is 0.1-10%.
Further, the cosmetic may further comprise soothing agents, moisturizing agents, whitening agents, antioxidants, surfactants, preservatives, excipients and bases which are cosmetically acceptable.
The invention has the following advantages:
the after-sun repair composition provided by the invention is composed of the roselle extract, the abelmoschus manihot extract and the sodium caseinate according to a certain proportion, and the roselle extract, the abelmoschus manihot extract and the sodium caseinate have synergistic effect, so that the irritation of organic acid in the roselle extract to skin can be reduced, the long-acting remarkable repair of the after-sun skin can be realized, discomfort symptoms such as stabbing pain, erythema and desquamation can be reduced, inflammatory reaction such as redness and swelling can be inhibited, the effect of removing free radicals can be remarkably realized, and the cosmetic with the after-sun repair effect can be prepared by adding auxiliary materials which are allowed to be added in the cosmetic.
Detailed Description
The present invention will be described in further detail with reference to the following examples. It should not be understood that the scope of the above-described subject matter of the present invention is limited to the following examples.
Example 1A post-basking repair composition
The after-sun repair composition comprises the following components in parts by weight: 20 parts of a roselle extract, 15 parts of a abelmoschus manihot extract and 5 parts of sodium caseinate.
The preparation method comprises the following steps:
s1, drying and pulverizing flos Hibisci Sabdariffae naturally, adding 75% ethanol solution at weight volume ratio of 1:50g/ml, treating with 450W microwave for 3min, performing 500W ultrasonic extraction for 45min, filtering, and concentrating the filtrate to obtain extract with density of 1.10g/cm3The Hibiscus sabdariffa extract of (1);
s2, naturally drying and crushing Abelmoschus manihot, adding water according to the weight-volume ratio of 1:20g/ml, heating and refluxing for extraction for 1.5h, filtering, adding water to filter residues according to the weight-volume ratio of 1:10g/ml, heating and refluxing for extraction for 1h, filtering, combining the two filtrates, concentrating to obtain the extract with the density of 1.15g/cm3The Abelmoschus manihot extract;
s3, mixing the roselle extract obtained in the step S1, the abelmoschus manihot extract obtained in the step S2 and sodium caseinate in parts by weight.
Example 2A post-basking repair composition
The after-sun repair composition comprises the following components in parts by weight: 25 parts of roselle extractive, 10 parts of abelmoschus manihot extractive and 3 parts of sodium caseinate.
The preparation method comprises the following steps:
s1, drying and pulverizing the flowers of Hibiscus sabdariffa naturally, adding 60% ethanol solution according to the weight-volume ratio of 1:25g/ml, treating for 5min with 300W microwave, performing ultrasonic extraction for 15min with 500W, filtering, and concentrating the filtrate to obtain the extract with the density of 1.08g/cm3The Hibiscus sabdariffa extract of (1);
s2, naturally drying and crushing Abelmoschus manihot, adding water according to the weight-volume ratio of 1:10g/ml, heating and refluxing for extraction for 1.5h, filtering, adding water to filter residues according to the weight-volume ratio of 1:5g/ml, heating and refluxing for extraction for 1h, filtering, combining the two filtrates, concentrating to obtain the extract with the density of 1.12g/cm3The Abelmoschus manihot extract;
s3, mixing the roselle extract obtained in the step S1, the abelmoschus manihot extract obtained in the step S2 and sodium caseinate in parts by weight.
Example 3A post-basking repair composition
The after-sun repair composition comprises the following components in parts by weight: 15 parts of a roselle extract, 20 parts of a abelmoschus manihot extract and 1 part of sodium caseinate.
The preparation method comprises the following steps:
s1, drying and pulverizing flos Hibisci Sabdariffae naturally, adding 75% ethanol solution at weight volume ratio of 1:100g/ml, treating with 500W microwave for 1min, performing ultrasonic extraction at 300W for 60min, filtering, and concentrating the filtrate to obtain extract with density of 1.11g/cm3The Hibiscus sabdariffa extract of (1);
s2, naturally drying and crushing Abelmoschus manihot, adding water according to the weight-volume ratio of 1:10g/ml, heating and refluxing for extraction for 1.5h, filtering, adding water to filter residues according to the weight-volume ratio of 1:5g/ml, heating and refluxing for extraction for 1h, filtering, combining the two filtrates, concentrating to obtain the extract with the density of 1.14g/cm3The Abelmoschus manihot extract;
s3, mixing the roselle extract obtained in the step S1, the abelmoschus manihot extract obtained in the step S2 and sodium caseinate in parts by weight.
Comparative example 1A composition
The difference from example 1 is that the composition of comparative example 1 is not added with roselle extract, and other parameters and operations refer to example 1.
Comparative example 2A composition
The difference from example 1 is that the composition of comparative example 2, in which the roselle extract was re-extracted, was directly subjected to ultrasonic extraction without microwave treatment, and other parameters and operations were as in example 1.
Comparative example 3A composition
The difference from example 1 is that the composition of comparative example 3 does not contain the abelmoschus manihot extract, and other parameters and operations refer to example 1.
Comparative example 4A composition
The difference from example 1 is that the malva neglecta extract in the composition of comparative example 4 is replaced with a witch hazel extract (available from biotechnology limited in new Tian of Shaanxi), and other parameters and operations refer to example 1.
Comparative example 5A composition
The difference from example 1 is that the composition of comparative example 5 does not contain sodium caseinate, and the other parameters and operations refer to example 1.
Comparative example 6A composition
The difference from example 1 is that the sodium caseinate in the composition of comparative example 6 was replaced by sodium lauryl sulfate, and other parameters and operations refer to example 1.
Application examples 1-3 after-sun repair emulsion
The essence is prepared from the following raw materials in percentage by weight: the after-sun repairing composition comprises 10% of a post-sun repairing composition, 2.5% of C14-C22 alkyl alcohol, 3% of glyceryl stearate, 5% of liquid oil, 3% of solid oil, 10% of an aloe extract, 2% of a peony root extract, 3.5% of polydimethylsiloxane, 0.2% of a thickening agent, 3% of an antioxidant, 0.01% of a preservative, 0.15% of a chelating agent and the balance of deionized water.
Wherein the post-basking repair compositions are the post-basking repair compositions prepared in examples 1-3, respectively.
Application examples 4 to 6 cream containing after-sun repair composition
The cream is prepared from the following raw materials in percentage by weight: a post-basking repair composition of 5%, aloe vera extract 10%, paeonia lactiflora extract 2%, betaine 5%, 1, 3-propanediol 5%, cetearyl alcohol 6%, caprylic/capric triglyceride 5%, horse oil 20%, beeswax 1%, xanthan gum 0.5%, hexylene glycol 1%, caprylhydroxamic acid 0.005% and balance water;
wherein the post-basking repair compositions are the post-basking repair compositions prepared in examples 1-3, respectively.
Experimental example 1 test of the after-Sun repair Effect of the composition
1. Experimental materials: the compositions prepared in examples 1 to 3 and comparative examples 1 to 6 were dissolved in water to prepare an aqueous solution having a content of 5% as a sample to be measured.
2. Subject: SD rats 300-350 g, half male and half female.
3. The experimental process comprises the following steps:
SD rats were randomly divided into a blank group, a model group, examples 1-3 groups, and comparative examples 1-6 groups, each group containing 20 rats. The back of the rat is unhaired 24 hours before the experiment, and the area is about 3 multiplied by 3cm2Except for the blank group, the skin of the back of the rat is molded by 2, 4-dinitrochlorobenzene in the other groups, the ultraviolet rays are used for irradiating for 12 hours, 0 hour and 8 hours after the molding is successful (the skin shows symptoms of dryness, desquamation, burning, stabbing pain, swelling, erythema and the like) are respectively coated on the unhairing area of the back of the rat by 0.5ml of the sample to be tested prepared in the examples 1 to 3 and the comparative examples 1 to 6, and the coating range is about 2.5 multiplied by 2.5cm2The blank group and the model group were replaced with deionized water, and the administration was performed once a day for 14 days, and the skin condition on the back of rats in each group was observed on day 15 and recorded according to the evaluation criteria in table 1, and the serum Histidine (HIS) concentration in the rat sample in each group was measured.
TABLE 1 evaluation criteria for skin conditions
4. The experimental results are as follows: see tables 2-3.
TABLE 2 repair effect 0h after successful mold making
Note: in comparison to the set of models,*P<0.05,**P<0.01。
as can be seen from table 2, when the composition prepared in embodiments 1 to 3 of the present invention is applied to the damaged skin 0h after the successful molding, the HIS concentration can be significantly reduced, the inflammatory response can be alleviated, and the symptoms of dryness, desquamation, swelling, erythema, etc. of the damaged skin can be significantly improved; in comparative examples 1 to 6, the composition components or the composition obtained by the preparation method are respectively changed, so that the inflammation and skin conditions are improved to a certain extent, but the improvement effect is obviously inferior to that of the examples.
TABLE 3 repair effect 8h after successful mold making
Note: in comparison to the set of models,*P<0.05,**P<0.01。
as can be seen from table 3, when the composition prepared in embodiments 1 to 3 of the present invention is applied to the damaged skin 8 hours after the successful molding, the HIS concentration can be still significantly reduced, the inflammatory response can be alleviated, and the symptoms of dryness, desquamation, swelling, erythema, etc. of the damaged skin can be significantly improved; in comparative examples 1 to 6, the composition components are changed or the composition obtained by the preparation method has no significant influence on the HIS concentration, and the skin condition is improved poorly.
Experimental example 2 radical scavenging Effect test of composition
1. Experimental materials: the compositions prepared in examples 1 to 3 and comparative examples 1 to 6 were dissolved in water to prepare an aqueous solution having a content of 5% as a sample to be measured.
2. The experimental process comprises the following steps:
(1) hydroxyl radical scavenging experiments: adding 0.5ml of 0.75mmol/L o-diazaphenanthrene absolute ethanol solution into a stoppered test tube, respectively adding 2ml of 0.2mol/L phosphate buffer solution (pH 7.4) and 1ml of sample to be tested, mixing well, adding 0.5ml of 0.75mmol/L FeSO4·7H2O solution, mixing again, adding 0.5ml H with concentration of 0.01% (v/v)2O2After reacting in a constant-temperature water bath at 37 ℃ for 60min, the absorbance value of each group of mixture solution is respectively measured at 536nm and is recorded as AxThe absorbance value is recorded as A by taking distilled water as a blank groupbReplacing H with distilled water2O2The absorbance values were measured as a lesion group and recorded as AnAccording to the formula: hydroxy radical scavenging rate ═ ax-An)/(Ab-An) X 100%, hydroxyl radical scavenging rate was calculated.
(2) DPPH free radical scavenging experiments: taking 3ml of 0.2mmol/L DPPH absolute ethanol solution, adding 1ml of sample to be measured, mixing, reacting at room temperature in a dark place for 30min, measuring the absorbance value at the wavelength of 517nm, and recording as Ax(ii) a Measuring absorbance value by using 3ml of absolute ethyl alcohol and 1ml of sample to be measured as blank control, and recording as Ab(ii) a The absorbance values were recorded as A by using 3ml of DPPH absolute ethanol solution and 1ml of absolute ethanol solution as control groupsnAccording to the formula: DPPH radical clearance rate ═ 1- (A)x-Ab)/An]X 100%, DPPH radical clearance was calculated.
3. The experimental results are as follows: see table 4.
TABLE 4 determination of radical scavenging Effect of the compositions
As can be seen from Table 4, the compositions prepared in the embodiments 1 to 3 of the present invention have hydroxyl radical and DPPH radical scavenging rates of more than 80%, and can significantly delay skin cell aging; in comparative examples 1-6, the hydroxyl radical and DPPH radical scavenging rate of the composition obtained by changing the composition components or the preparation method is obviously reduced.
Experimental example 3 skin irritation test with composition
1. Test materials: the compositions prepared in examples 1 to 3 and comparative examples 3 to 6.
2. Test subjects: healthy rabbits weigh 2.5-3 kg, and are half as male and female.
3. The test method comprises the following steps:
test methods refer to skin irritation/corrosion test of cosmetic hygiene norm (2007 edition), and the control is normal skin on the other side of the same test animal, and the scoring criteria are shown in table 5.
TABLE 5 skin irritation response score
4. And (3) test results: see table 6.
Table 6 skin irritation test results (n ═ 5)
As can be seen from table 6, in the observation period, the skin of the tested rabbit does not have abnormal reactions such as erythema and edema, and other poisoning symptoms, and the highest stimulation index at each observation time point in the test is 0, which indicates that the after-sun repair composition has no irritation to the skin; whereas the compositions of comparative examples 3 to 6 had mild erythema and edema after 1 hour and were eliminated after 24 hours.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.