title: [Studies on flash extraction methods of Arnebia euchroma].
abstract: The extraction of functional components from radix of Arnebia euchroma was optimized using orthogonal design based on the extraction yields of shikonin, and hydroxyl-naphthoquinone pigments. The data processing was carried out with the multiple guidelines grading method for optimizing the extraction condition. Compared with the traditional method (refluxing and ultrasonic extraction), the flash extraction method was more efficient The optimal conditions were as follows: 95% ethanol extract 3 times with 90 s for each. Under these conditions, the extraction yields of shikonin, and hydroxyl-naphthoquinone pigments were 93.16%, 93.89%, respectively, and the dry extract rate was 5.16%. In conclusion, the result showed that the flash extraction technology was appropriate, stable and feasible.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China. mengqingju123@163.com
authors.forename: Qing-Ju
authors.initials: QJ
authors.lastname: Meng
authors.forename: Hong
authors.initials: H
authors.lastname: Yi
authors.forename: Hua
authors.initials: H
authors.lastname: Yang
authors.forename: Li-Wei
authors.initials: LW
authors.lastname: Zhu
authors.forename: Jing
authors.initials: J
authors.lastname: Feng
authors.forename: Xiao-Qian
authors.initials: XQ
authors.lastname: Liu
mesh_terms: D028082:Boraginaceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D009285:Naphthoquinones / Q000737:chemistry; D010860:Pigments, Biological / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D009285:Naphthoquinones; D010860:Pigments, Biological; D010936:Plant Extracts; C016101:shikonin