Preparation of allantoin and allantoin extract from cistanche salsa and their use thereof
A technology of allantoin and extract, which is applied in the field of extraction, separation and structure identification of chemical components of Chinese herbal medicine, and can solve problems such as application
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Embodiment 1
[0007] Embodiment 1: Prepare allantoin extract or allantoin with Cistanche deserticola as raw material
[0008] Cistanche salsa (C.A.Mey) G.Beck 160g, extracted twice with 10 times and 8 times of water at 80°C respectively, combined the extracts, concentrated under reduced pressure to a thick paste (density at 50°C is about 1.1 g / ml), add ethanol to 60% alcohol content, let it stand overnight, concentrate the alcohol solution, add water to dissolve. The water liquid passes through the macroporous adsorption resin SP 825 Column (about 500ml in volume), eluted with water of 3 times of column bed volume, collected fractions containing allantoin in it, and then passed through granular activated carbon (about 300g), first eluted with water of 3 times of column bed volume, and then used Elute with 30% ethanol for 3 times the volume of the column bed, collect the fractions containing allantoin, concentrate under reduced pressure to a thick paste, then freeze-dry to obtain the allant...
Embodiment 2
[0009] Example 2: Confirmation of the structure of allantoin
[0010] The crystal obtained in Example 1, mp243~245°C, is easily soluble in water and dilute alcohol, and the alkaloid reaction is positive. IR(KBr)cm 1 : 3437, 3344 (NH 2 ); 3207, 3062 (NH); 1779, 1568 (C=O); 1602, 1528, 1430, 1183 (C-N); MS: 158 (M + ) indicates that the molecular structure has an even number N; 1 H-NMR (DMSO-d 6 )δppm: 5.25 (1H, d, J=8.1Hz, H-4), 5.76 (2H, s, H-8), 6.86 (1H, d, J=8.1Hz, H-6), 8.03 (1H, s, H-3), 10.51 (1H, s, H-1); 13 C-NMR (DMSO-d 6 ) δppm: 62.6 (C-4), 156.9 (C-2), 157.5 (C-7), 173.7 (C-5). Simultaneous injection with the synthesized allantoin in the HPLC instrument has the same retention time. The structural formula is as follows:
[0011]
Embodiment 3
[0012] Embodiment 3: the preparation of a kind of natural allantoin skin care cream
[0013] formula:
[0014] Acidi Stearici 100g
[0015] Cetyl Alcohol Cetylii Alcoholis 45g
[0016] Lanolin Adeps Lanae 10g
[0017] Propylene Glycol Glycolis Propylenici 150ml
[0018] Sodium Lauryl Sulfate Natrii Laurylis Sufatis 5g
[0019] Triethanolamine Triaethanolamini 7g
[0020] Vitamin E Vit E 0.5g
[0021] Natural Allantoin 10g
[0022] Or Allantoin extract or Allantoin extract Equivalent to 10 grams of Allantoin extract
[0023] Appropriate amount of water-soluble fragrance Esssenlce
[0024] Add deionized water to Aquae to 1000g
[0025] Preparation method:
[0026] 1. Take stearic acid, cetyl alcohol, lanolin and vitamin E, put them in a suitable container and heat at 70-80°C;
[0027] 2. Take propylene glycol, sodium lauryl sulfate, triethanolamine, water-soluble essence and water and heat it at 70-80°C in another suitable container. After the two liquids are at the ...
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