Study on the extraction technology of polysaccharide from hawthorn leaves
Technology on the extraction and decolorization of polysaccharide from hawthorn leaves were studied in the paper.The optimum conditions were obtained through single factor and orthogonal experiments.The results showed the optimum extraction condition is that hawthorn leaves,of which the ratio to liquids is 1:35,was extracted at 90 ℃ for 3 h,and the water-soluble saccharide yields 6.47%.No absorption of nucleic acid and proteins were found in UV spectra,indicating nearly no presence of the above impurities in product.