【摘要】 研究从桔皮中提取黄色素的工艺及条件 ,确定了浸渍法提取黄色素的最佳工艺条件和索氏提取法的适宜条件。结果表明 ,浸渍法的最佳工艺条件是 :以 70 %乙醇为提取剂 ,采用 1∶ 8(g· m L- 1 )的料液比 ,在 5 0℃的浸渍温度下浸渍 3次 ,每次 5 h,共需 15 h;采用索氏提取法 ,以与浸渍法相同的提取溶剂和料液比 ,在 95℃水浴温度下 ,只需回流 2 h就能达到浸渍法的提取效果 ,大幅度地缩短了提取时间。更多还原

【Abstract】 The optimum conditions for the extraction of yellow pigment from orange peel with immersing and solvent refluxing technique were studied. The results showed that the optimuml conditions of immersing technique were: the ratio of 70% ethanol to orange peel weight 1:8 , orange peel was immersed at 50℃ for 3 times and 5h each time, amounted to 15h; the conditions of solvent refluxing technique were: the peel was bathed in 95℃ with water, solvent refluxing only for 2h at the same extracting solvent (70% ethanol solution) and solid-liquid ratio (1g:8mL). So the extraction time were shortened greatly compared with the solvent refluxing technique.更多还原