Dendrobium officinale small-molecular peptide facial mask based on gold-nano rod composite material
A technology of dendrobium candidum and nano-gold rods, which can be used in skin care preparations, cosmetics, cosmetic preparations, etc., and can solve the problems of easily damaged small molecular peptides of dendrobium candidum, low efficiency of small molecular peptides of dendrobium candidum, and inconvenient separation of small molecular peptides , achieve the effect of enhancing skin repair ability, inhibiting bacterial reproduction, and high stability
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Embodiment 1
[0021] 1. Normal temperature and high pressure pretreatment and compound enzymatic hydrolysis preparation technology
[0022] According to the structural characteristics of Dendrobium officinale protein, high-dispersion Dendrobium officinale pretreatment solution was obtained by using normal temperature and high pressure pretreatment technology The dendrobium was dried (40° C.), pulverized, passed through a 60-mesh sieve, added a certain proportion of water to the obtained powder, stirred evenly, and soaked for 10 minutes to soften. Adjust the upper and lower limit temperature of the low-temperature circulating pump to -10°C to -4°C to ensure that the internal temperature of the homogenizer is at room temperature. Pour the mixed material into a high-pressure homogenizer. The material is first placed under low pressure conditions (5-10MPa), and then the valve is adjusted to 40-50MPa. After the pressure is stable, homogenize several times; the obtained homogeneous solution is ce...
Embodiment 2
[0027] [Example 2] Preparation of facial mask essence and facial mask packaging
[0028] The composition of facial mask of the present invention is as follows:
[0029]
[0030]
[0031] The nano-gold rods used in the present invention are prepared by the in-situ method, and the modified polysaccharide-based block copolymer SA-PVP is used as a stabilizer, wherein the amount of SA-PVP is 11%, and the seaweed polysaccharide unit in the copolymer SA-PVP has Strong complexing ability, can form complexes with multivalent metal ions, and effectively snatch heavy metal ions from the skin. The prepared nano-gold rods have an average diameter of about 10nm and an average length of about 60nm, and have obvious photothermal effect.
[0032] The preparation method of the facial mask of the present invention is as follows: fully mix the above-mentioned ingredients, stir and homogenize to obtain the mask essence in a transparent or translucent emulsion; send the mask essence for insp...
Embodiment 3
[0033] [Example 3] Product Quality Inspection
[0034] Microbiology test: The test items include the total number of colonies, fecal coliforms, Pseudomonas aeruginosa, Staphylococcus aureus, mold and yeast. Evaluation criteria: the total number of colonies ≤ 1000cfu / ml (g); the total number of mold and yeast ≤ 100cfu / ml (g); fecal coliforms, Pseudomonas aeruginosa, and Staphylococcus aureus cannot be detected. Any ≥ 1 indicator that does not meet the standard is judged as a substandard sample.
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