A method of preparing an extract from Zingiber officinale, which is potent in anti-inflammation and anti-platelet aggregation, includes the following steps: a) preparing a crude liquid from rhizomes of ginger by extraction with an organic solvent or by distillation with steam; b) introducing the crude liquid to a reverse phase chromatography column, and eluting the column with water, a first eluent and a second eluent having a polarity weaker than that of the first eluent but stronger than that of chloroform, so that a first eluate resulting from elution of the first eluent and a second eluate resulting from elution of the second eluent are obtained; c) removing the first eluent from the first eluate by evaporation, so that a first concentrated eluate is obtained and is able to used as the potent extract; and d) removing the second eluent from the second eluate by evaporation, so that a second concentrated eluate is obtained and is able to used as the potent extract.

National Science Council

Method of preparing an extract potent in anti-inflammation and anti-platelet aggregation from Zingiber officinale and pharmaceutical compositions containing said extract

An ultra-pure, high molecular weight hyaluronic acid fraction which is characterized by the absence of significant cellular infiltration of the vitreous and anterior chamber, absence of significant flare in the aqueous humor, absence of significant haze or flare in the vitreous and absence of pathological changes to the cornea, lens, iris, retina, and choroid of the owl monkey eye when one milliliter of a 1% solution of the sodium salt thereof dissolved in physiological buffer is implanted in the vitreous replacing about one-half the existing liquid vitreous. This material is obtained from animal tissue containing hyaluronic acid by a process which comprises removing the blood from animal tissue containing hyaluronic acid, extracting hyaluronic acid therefrom, deproteinizing the hyaluronic acid extract, and removing any unidentified inflammation causing agents persent therein by treating the deproteinized hyaluronic acid extract at a pH of 6.0 - 7.0 with a volume of chloroform at least about equal to that of the deproteinized extract, to form a two-phase mixture which is then stirred, sufficiently to ensure intimate contact between said two phases, at about 15.degree. - 40.degree. C., followed by separating out and discarding the chloroform phase.

chloroform/upala

Method of preparing an extract potent in anti-inflammation and anti-platelet aggregation from Zingiber officinale and pharmaceutical compositions containing said extract

Ultrapure hyaluronic acid and the use thereof

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