2011•Food Science and Technology InternationalRequires access

Extraction the polysaccharide from Portulaca oleracea L. by ultrahigh pressure

Haiyue Zhang

Abstract

The ultrahigh pressure extraction technology(UPE) of the polysaccharide from Portulaca oleracea L was studied.The test was plan with response surface methodology(RSM).The best extraction conditions are determined as follow:ratio of the material-liquid 1:20(g/mL),200 MPa holding 5 min.The yield of the polysaccharide is 22.21% at the optimum extraction condition.Using infrared spectroscopy and high-performance liquid chromatography measure the polysaccharide,the main polysaccharide as follows: galacturonic acid,glucose,galactose and arabinose.

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Key concepts: Portulaca, Polysaccharide, Extraction (chemistry), Arabinose, Chromatography, Chemistry, Yield (engineering), Galactose