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Xinjiang jujube chemical composition and antioxidant activity of

Author: WangDongDong
Tutor: TianShuGe
School: Xinjiang Medical University
Course: Of Pharmacy
Keywords: Dates Chemical composition Antioxidant activity
CLC: R284.2
Type: Master's thesis
Year: 2011
Downloads: 281
Quote: 0
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Abstract


Objective: Different Areas in Xinjiang jujube chemical composition and antioxidant action research, quality control dates provide a more stable and reliable method for the dates of clinical medicine and food processing to provide a reference . Methods: Using dates were determined by spectrophotometry of total polyphenols, total flavonoids ; using high performance liquid chromatography (HPLC method ) Determination of rutin , oleanolic acid , ursolic acid , Rapid Resolution LC chromatography (RRLC France ) determination of cyclic adenosine monophosphate (cAMP) levels ; by Microwave Digestion - flame atomic Absorption Spectrometry content of metal elements ; orthogonal experiment method jujube extraction process of total flavonoids investigated ; research macroporous resin separation and purification of total flavonoids dates ; application of three kinds of anti- oxidation model ( DPPH radical scavenging , hydroxyl radical and superoxide dismutase (SOD)), red dates water extracts on antioxidant activity determination . Results: 6 kinds of Jujube contain total polyphenols , flavonoids , and the content has a certain degree of variation ; rutin , oleanolic acid, ursolic acid and cyclic adenosine monophosphate levels were some differences ; measured dates eight metal element content ; jujube use orthogonal extraction process of total flavonoids was 12 times the amount of 70% ethanol was extracted two times, each time 1h; D101 resin has good static and dynamic adsorption performance. Experiments show dates antioxidant water extract has good antioxidant activity. Conclusion : This topic Xinjiang six different varieties of jujube total polyphenols, flavonoids , rutin , oleanolic acid , ursolic acid, cyclic adenosine monophosphate and content of metal elements were determined , screening optimization jujube flavonoids extraction and purification process parameters , and the dates of the aqueous extract in vitro antioxidant tests, for the dates established scientific quality standards and provide a theoretical basis for further research .

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CLC: > Medicine, health > Chinese Medicine > Of Pharmacy > Traditional Chinese medicine chemical > Separation and extraction of active ingredients
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