Chemical Compositions of Fruit and Dry Aqueous Extract of Ziziphus jujuba
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Fruit of Ziziphus jujuba has long been used in folk medicine as a hypotensive agent for treating hypertension and diuretic; for diseases of the upper respiratory tract; as a tonic agent; and for fever, asthma, throat diseases, and infectious intestinal diseases. Tincture of the fruit is used for chest pain, cough, smallpox, diarrhea, and anemia . The carbohydrate composition of Z. jujuba fruit has not previously been studied.
The raw material for producing the dry extract was ripe fruits of Z. jujuba that were collected in 2014 in Xorezm Region. Fruit was separated into pulp (94.60%) and seeds (5.32%).
Pulp was extracted sequentially with EtOH (80°) to isolate sugars soluble in alcohol (SSA); H2O at room temperature, water-soluble polysaccharides (WSPS); oxalic acid and ammonium oxalate, pectinic substances (PS), and NaOH solution, hemicellulose (HMC). The protein content in Z. jujuba was 8.9%.
KeywordsXylose EtOH Pectin Arabinose Galacturonic Acid
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