The preparation method of Gardenia Yellow is microwave extraction

Microwave extraction

The Gardenia Yellow extraction power was 210w, the extraction time was changed by extracting with 50% ethanol and water solution at the time of 80s twice, the solid-liquid ratio was 1:12, Indole-3-Carbinol and the extraction rate of pigment was 98.24%. The traditional method was used to extract 60% ethanol solution at 5℃ for 2 times, each time 2h. The extraction times and ratio of solid to liquid were the same as that of microwave extraction. However, 3-Indolylcarbinol the extraction rate of pigment was lower than that of microwave extraction (92.1%).

Compared with traditional solvent extraction, 3,3'-Diindolylmethane microwave extraction has the advantages of less time consuming and higher efficiency.