[ Objective] The paper aimed to study the optimum extraction technology of pigments from petals of Matthiola incana（ L. ） R. Br. of differ- ent colors. [Method] Petal pigments of Aida variety （white violet）, Franc...[ Objective] The paper aimed to study the optimum extraction technology of pigments from petals of Matthiola incana（ L. ） R. Br. of differ- ent colors. [Method] Petal pigments of Aida variety （white violet）, Francesco variety （ red violet） and Arabella variety （ purple violet） were ana- lyzed by colorimetric reaction method and ultraviolet-visible spectrum method, and the optimum extraction technology of flavonoid compounds from petals of them was determined by single factor experiment and orthogonal experiment. [ Result] The optimum extraction conditions of white violet were as follows： with 95% ethanol ＋ 5% HCI as solvent, solid-liquid ratio （ 1 ： 40）, extraction time （3 h）, extraction temperature （65 ℃ ）. The opti- mum extraction conditions of red violet and purple violet were as follows： with acetone as solvent, solid-liquid ratio （1：40）, extraction time （3 h）, extraction temperature （65 ℃）. [ Conclusion] The study provided theoretical foundation for further development and exploitation of pigments from M. incana（ L. ） R. Br.展开更多
基金Supported by Natural Science Foundation in Chongqing(CSTC,2006BB1336)Applied Basic Research Program of Chongqing Education Department(KJ060308)
文摘[ Objective] The paper aimed to study the optimum extraction technology of pigments from petals of Matthiola incana（ L. ） R. Br. of differ- ent colors. [Method] Petal pigments of Aida variety （white violet）, Francesco variety （ red violet） and Arabella variety （ purple violet） were ana- lyzed by colorimetric reaction method and ultraviolet-visible spectrum method, and the optimum extraction technology of flavonoid compounds from petals of them was determined by single factor experiment and orthogonal experiment. [ Result] The optimum extraction conditions of white violet were as follows： with 95% ethanol ＋ 5% HCI as solvent, solid-liquid ratio （ 1 ： 40）, extraction time （3 h）, extraction temperature （65 ℃ ）. The opti- mum extraction conditions of red violet and purple violet were as follows： with acetone as solvent, solid-liquid ratio （1：40）, extraction time （3 h）, extraction temperature （65 ℃）. [ Conclusion] The study provided theoretical foundation for further development and exploitation of pigments from M. incana（ L. ） R. Br.
