Garcinia mangostana L. extract for treatment of gout and preparation method thereof
A technology of extract, gout, applied in the field of medicine
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Embodiment 1
[0017] Get fresh mangosteen peel 50kg, soak 4 times with 100L of 95% ethanol, each 48 hours. The soaking liquids were combined, concentrated under reduced pressure at 50°C until there was no ethanol smell, left overnight (12 hours), filtered to obtain 1.98kg of filter residue (17L of dark reddish-brown filtrate for later use), added 20kg of water, stirred to suspend, filtered, and vacuum-dried at 60°C , pulverized to obtain yellow-brown powder 1.38kg (mangosteen extract I).
[0018] Take the above spare dark reddish-brown filtrate, extract 3 times with chloroform, 6L each time, apply macroporous adsorption resin (resin 20kg, chromatographic column diameter 20cm, column volume is 35L) on the aqueous solution after extraction, first use 3 times The column volume was eluted with water, and then eluted with 75% ethanol solution for 3 times the column volume, the eluate was collected, concentrated under reduced pressure at 50°C, dried under vacuum at 60°C, and pulverized to obtain ...
Embodiment 2
[0022] Take 20 kg of dried mangosteen peel, crush it, pass through a 10-mesh sieve, add 40 L of 50% ethanol, soak for 48 hours, 2 times in total, filter; then soak in 80 L of ethanol for 48 hours, 2 times in total, filter; combine 4 extracts, Concentrate under reduced pressure at 50°C until there is no ethanol smell, place overnight (12 hours), filter to obtain 2.28kg of filter residue (36L of dark reddish-brown filtrate for later use), add 23kg of water, stir to suspend, filter, vacuum-dry at 60°C, and pulverize to obtain Yellow-brown powder 1.62kg (mangosteen extract I).
[0023] Take the above spare dark reddish-brown filtrate, extract 3 times with chloroform, 12L each time, apply macroporous adsorption resin (resin 20kg, chromatographic column diameter 20cm, column volume is 35L) on the aqueous liquid after extraction, first use 3 times The column volume was eluted with water, and then eluted with 75% ethanol solution for 3 times the column volume, the eluate was collected...
Embodiment 3
[0026] Healthy male Kunming mice (body weight 18-22g) were provided by Beijing Huafukang Biotechnology Co., Ltd., certificate number: SCXK (Beijing) 2014-0004. Animals were randomly divided into normal control group, hyperuricemia model group, fresh mangosteen peel extract I and II groups (20.0 mg / kg each) and positive control group allopurinol 5 mg / kg. The test compound was formulated with 0.5% sodium carboxymethylcellulose (0.5% CMC-Na) to an appropriate concentration, administered orally, twice a day, 5 doses in total. Reference [HallIH, Scoville JP, Reynolds DJ, Simlot R, Duncan P.Substituted cyclic imides aspotencial anti-gout agents.Life Sciences.1990, 46:923-1927.Stavric B, ClaymanS, Gradd REA, Hebert D.Some in vivo effects in the rat induced by chlorprothixene and potassium oxonate Pharmacology Research, 1975, 7: 117-124] using uricase inhibitor potassium oxonate as a chemical inducer, intraperitoneal injection of potassium oxonate 400mg / kg, resulting in hyperuricemia ...
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