Composition for preventing, alleviating or treating allergic skin diseases, containing, as active ingredient, extract of gardenia fruits from which pigments are removed
A technology of gardenia extract and active ingredients, applied in the field of compositions for preventing, improving or treating allergic skin diseases, can solve problems such as disease deterioration, increase the economic burden of patients, not belong to allergic diseases, etc. Effect
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[0025]The above-mentioned preparation method includes: step (1), adding an extraction solvent to Gardenia jasmine to carry out the first extraction and obtaining the first filtrate by filtering; step (2), after obtaining the first filtrate from the above step (1), , adding an extraction solvent to the remaining residue to obtain a second filtrate; step (3), after mixing the first filtrate obtained from the above step (1) and the second filtrate obtained from the above step (2), by adding activated carbon to make the pigment of the gardenia extract adsorbed on the activated carbon; and step (4), after the above step (3), removing the above activated carbon and obtaining the depigmented gardenia extract by filtering, concentrating and drying.
[0026] In the above step (3), there is no particular limitation on activated carbon, but preferably, it can be granular or fine-grained, and more preferably, it can be fine-grained (powder or powder form).
[0027] Preferably, the above-m...
Embodiment 1
[0037] Embodiment 1. Preparation of the gardenia extract that has removed pigment
[0038] In order to solve the problem of pigment remaining on the skin, activated charcoal was used to absorb gardenia pigment to remove the inherent pigment of gardenia, so as to prepare gardenia extract without crocin (Crocin).
[0039] (1) Preparation of Gardenia ethanol extract that has removed pigment
[0040] ① Preparation of Gardenia Extract for the First Time : After adding 100 g of gardenia to 1000 ml of 70% (v / v) ethanol and extracting in an aqueous solution at 55° C. for 2 hours, a first extract was obtained by filtration.
[0041] ② Preparation of Gardenia Extract for the Second Time : After adding 1000 ml of 70% (v / v) ethanol to the residue other than the above filtrate again and extracting under the same conditions as the first gardenia extract, a second extract was obtained by filtration.
[0042] ③ Pigment removal : Two types of activated carbon, carbon activated granular ...
Embodiment 2
[0051] Example 2. Confirmation of the effect on atopic dermatitis in an animal model of allergic atopic dermatitis coated with depigmented gardenia ethanol extract
[0052] Apply 100 mg of ointment (AD Biostir, Japan) containing natural house dust mite-derived components as an allergic atopy-inducing antigen to the skin of 8-week-old NC / Nga mice at intervals of 3 to 4 days and within 21 days A total of 6 applications were applied to induce allergic atopic dermatitis. Seven days after the induction of allergic atopic dermatitis, 1 mg / ml of drugs (gardenia extract (GJE1%), depigmented gardenia extract (GJE-CR 1%)) and tacrolimus (tarolimus) ) applied once a day for a total of 14 days.
[0053] Subsequently, once a week, each time 20 minutes, the number of times of scratching the ears and back of the mice induced by allergic dermatitis and the degree of skin damage were evaluated. All measurement results are expressed with mean (mean) and standard deviation (SD, standarddeviati...
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