A black fruit wolfberry moisturizing and repairing gel and its preparation method
A technology of black fruit wolfberry and gel, applied in the field of black fruit wolfberry moisturizing repair gel and preparation thereof, can solve problems such as skin damage, and achieve the effects of good skin care activity, good quality and simple production process
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[0029] The preparation method of the yeast extract is as follows: wash the beer yeast in water at 0-4°C to remove impurities, debitterize, and then perform coarse filtration to obtain a yeast slurry containing solids, and then add accelerators, plasmolytic agents and NaOH , adjust the pH to 6.0-7.0, autolyze and extract at 52°C±2°C for 2-2.5 hours, then boil, inactivate the enzyme, cool and stand, centrifuge, remove cell wall fragments, and concentrate under vacuum to a concentration of 10g / mL to obtain the yeast extract.
[0030] The preparation method of the seaweed extract is as follows: the seaweed after removing impurities is washed and minced with a dilute acid solution with a pH of 2 to 4, ground and homogenized in a dilute acid solution with a pH of 2 to 4, and then homogenized The pulped seaweed is matured and sterilized at a temperature of 121-135°C and a pressure of 1-5 MPa for 0.5-2 hours, the degraded seaweed pulp is adjusted to pH 5.0-7.0 by adding alkali, and t...
Embodiment 9
[0044] Stability detection of the embodiment of the present invention 6 products:
[0045] 1. The pH value is 6.8.
[0046] 2. For heat resistance test, put the packaged sample in a thermostat (40±1)°C for 24 hours, and there will be no oil-water separation after returning to room temperature.
[0047] 3. For the cold resistance test, put the packaged samples in the refrigerator at -5~-10°C for 24 hours. After returning to room temperature, there will be no delamination, thickening and discoloration.
[0048] 4. For centrifugation test, place the packaged sample in a centrifuge at 2000 rpm for 30 minutes, and there is no oil-water separation phenomenon.
[0049] It can be seen that the face cream prepared in Example 6 of the present invention has good stability.
Embodiment 10
[0050] Embodiment 10 clinical experiment of the present invention and result
[0051] In order to test the moisturizing and repairing effect of the present invention, a trial investigation experiment has been carried out:
[0052] 1. Survey object: select 10 volunteers with dry skin, normal skin and oily skin in the same area;
[0053] 2. Investigation time: April 10, 2013 - June 10, 2013;
[0054] 3. Products used: Product A is the black fruit Lycium barbarum moisturizing and repairing gel prepared in Example 6 of the present invention, and Product B is the product prepared in Example 3;
[0055] 4. Test method: After cleansing the face, the testers in each group apply A and B products on the left and right sides of the face respectively, observe and investigate the use effect;
[0056] 5. The statistics of the test results are as follows:
[0057] Table 2 Feedback summary table of A product usage
[0058]
[0059] Table 3 Feedback summary table of B product trial situ...
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