title: Effect of the Steaming Process on Quality of Postharvest Cistanche deserticola for Medicinal Use during Sun Drying.
abstract: Effect of steaming on postharvest stems of Cistanche deserticola Y. C. MA was evaluated periodically during sun drying in both years. Steamed stems exhibited oily black in color, slightly heavier and longer than untreated ones. The levels of five phenylethanoid glycosides and 2,2-diphenyl-1-picrylhydrazyl free radical (DPPH) scavenging activity in steamed stems remained relatively stable during sun drying. Steamed samples showed higher amounts of water-soluble extracts, dilute ethanol-soluble extracts, soluble sugars, and polysaccharides, while a lower level of total ashes than untreated samples. The overall results suggest that steaming is an effective processing for enhancing the appearance quality and the concentration of some bioactive compounds in Cistanches Herba.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College.
authors.forename: Fang
authors.initials: F
authors.lastname: Peng
authors.forename: Rong
authors.initials: R
authors.lastname: Xu
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Changqing
authors.initials: C
authors.lastname: Xu
authors.forename: Tongning
authors.initials: T
authors.lastname: Liu
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
mesh_terms: D001713:Biphenyl Compounds / Q000737:chemistry; D031671:Cistanche; D003890:Desiccation; D016166:Free Radical Scavengers / Q000737:chemistry; D006027:Glycosides / Q000032:analysis; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D010946:Plants, Medicinal; D011134:Polysaccharides / Q000032:analysis; D013227:Steam; D013472:Sunlight
chemical_list: D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D006027:Glycosides; D010851:Picrates; D010936:Plant Extracts; D011134:Polysaccharides; D013227:Steam; C004931:1,1-diphenyl-2-picrylhydrazyl