Preparation method of acne compound
A compound and acne technology, which is applied in the field of preparation of acne compound, can solve the problems of poor stability and poor heat resistance, and achieve the effect of good inhibition, good stability and less impurities
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Embodiment 1
[0029] (1) Weigh 40 parts of Hedyotis diffusa, 20 parts of Lonicerae vine, 20 parts of Salvia root, and 20 parts of Acacia acacia seeds, add an ethanol solution 10 times the weight of the mixed medicinal materials, extract at 70°C for 3 hours, and filter , to filter out the liquid.
[0030] (2) Add flocculant to the filtrate filtered in step (1), stir until flocs appear, continue to stir for 20 minutes, let stand for 30 minutes, and then filter.
[0031] (3) Concentrate the filtrate filtered in step (2) at 60° C. for 2.5 hours, and add water to the concentrated filtrate until the total mass is 0.4 times the mass of the mixed medicinal materials.
[0032] (4) adding solvent to redissolve the Chinese herbal medicine components;
[0033] (5) filtrate is purified by ultrafiltration membrane;
[0034] (6) Sterilization and detection.
[0035] The flocculant in the step (2) is lignin.
[0036] The mass fraction of the flocculant in the step (2) is 5% (w / w), and the stirring spee...
Embodiment 2
[0041] (1) Weigh 20 parts of Hedyotis diffusa, 40 parts of Lonicerae vine, 20 parts of Salvia root and 20 parts of Acacia acacia seeds, add 15 times of ethanol solution, extract at 76°C for 3 hours, filter, and filter out the liquid .
[0042] (2) Add flocculant to the filtrate filtered in step (1), stir until flocs appear, continue to stir for 20 minutes, let stand for 30 minutes, and then filter.
[0043] (3) Concentrate the filtrate filtered in step (2) at 60° C., add water to the concentrated filtrate until the total mass is 0.5 times the mass of the mixed medicinal materials.
[0044] (4) adding a solvent to redissolve the Chinese herbal medicine components.
[0045] (5) filtrate is purified by ultrafiltration membrane;
[0046] (6) Sterilization and detection.
[0047] The flocculant in the step (2) is chitosan.
[0048] The mass fraction of the flocculant in the step (2) is 6% (w / w), and the stirring speed is 90 r / min.
[0049] The pressure during concentration in ...
Embodiment 3
[0053] (1) Weigh 20 parts of Hedyotis diffusa, 20 parts of Lonicerae vine, 40 parts of Salvia root and 20 parts of Acacia adenocarpa seeds, add 15 times of ethanol solution, extract at 80°C for 3 hours, filter, and filter out the liquid .
[0054] (2) Add flocculant to the filtrate filtered in step (1), stir until flocs appear, continue to stir for 20 minutes, let stand for 30 minutes, and then filter.
[0055] (3) Concentrate the filtrate filtered in step (2) at 60° C., add water to the concentrated filtrate until the total mass is 0.4 times the mass of the mixed medicinal materials.
[0056] (4) adding a solvent to redissolve the Chinese herbal medicine components.
[0057] (5) filtrate is purified by ultrafiltration membrane;
[0058] (6) Sterilization and detection.
[0059] The flocculant in the step (2) is lignin.
[0060] The mass fraction of the flocculant in the step (2) is 5% (w / w), and the stirring speed is 80 r / min.
[0061] The pressure during concentration i...
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