A kind of simple aqueous two-phase system composed of acetone,inorganic salt and water was used to separate and purify carthamine from safflower petals.Experimental results show that(NH4)2SO4 has the stronger phases-f...A kind of simple aqueous two-phase system composed of acetone,inorganic salt and water was used to separate and purify carthamine from safflower petals.Experimental results show that(NH4)2SO4 has the stronger phases-forming ability than K2HPO4 and NaCl.The optimum conditions for isolating carthamine from safflower yellow were chose as V(CH3)2CO=5mL,VH2O=5mL,m(NH4)2SO4=2.5g.Under the conditions,the yield can reach to 99 % for the extraction of carthamine with the partition coefficient K>55.The carthamine product with high purity was obtained using analog counter-current extracting experiment.展开更多
目的探讨超声提取法和双水相分离技术相结合提取红花红色素的新方法。方法利用超声波与双水相体系相结合对红花红色素进行提取和分离。结果利用超声与双水相体系结合对红花红色素进行提取分离的最佳提取条件为:提取温度为40℃,料液比为1...目的探讨超声提取法和双水相分离技术相结合提取红花红色素的新方法。方法利用超声波与双水相体系相结合对红花红色素进行提取和分离。结果利用超声与双水相体系结合对红花红色素进行提取分离的最佳提取条件为:提取温度为40℃,料液比为1∶20,体积分数70%丙酮超声30 m in两次;硫酸铵达到饱和状态,在此条件下,红花红色素提取率为0.36%。结论超声与双水相体系结合红花红色素提取分离的方法简便,易操作。展开更多
文摘A kind of simple aqueous two-phase system composed of acetone,inorganic salt and water was used to separate and purify carthamine from safflower petals.Experimental results show that(NH4)2SO4 has the stronger phases-forming ability than K2HPO4 and NaCl.The optimum conditions for isolating carthamine from safflower yellow were chose as V(CH3)2CO=5mL,VH2O=5mL,m(NH4)2SO4=2.5g.Under the conditions,the yield can reach to 99 % for the extraction of carthamine with the partition coefficient K>55.The carthamine product with high purity was obtained using analog counter-current extracting experiment.
文摘目的探讨超声提取法和双水相分离技术相结合提取红花红色素的新方法。方法利用超声波与双水相体系相结合对红花红色素进行提取和分离。结果利用超声与双水相体系结合对红花红色素进行提取分离的最佳提取条件为:提取温度为40℃,料液比为1∶20,体积分数70%丙酮超声30 m in两次;硫酸铵达到饱和状态,在此条件下,红花红色素提取率为0.36%。结论超声与双水相体系结合红花红色素提取分离的方法简便,易操作。
