The Technical Research of Extraction of Procyanidins in <i>Lycium ruthenicum</i> Murr. Using Sub-Critical Fluid 1,1,1,2-Tetrafluoroethane (R134a) and the Contents Determination from Different Origins
Abstract:The optimal conditions for extracting procyanidins from Lycium ruthenicum Murr. with sub-critical fluid R134a (1,1,1,2-tetrafluoroethane) in a 1 L extraction vessel were studied. Taking the extraction ratio of procyanidins as an indicator, the influences of pressure, temperature, and extraction time on extraction rate of procyanidins from Lycium ruthenicum Murr. were studied by single factor experimental methods and orthogonal array design. The order of factors affecting extraction ratio of procyanidins was ex… Show more
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