Optimum Microwave-assisted Extraction Process of Pectin from Carrot

The microwave-assisted extraction of pectin from carrot was studied using single factor and orthogonal test.The optimal extraction conditions were determined as follows:pH of HCl solution of 1.5,microwave power of 325 W,extraction time of 3.5 min and solid-liquid ratio of 1 ∶350(g/mL).Under these conditions,the yield of pectin from carrots is 20.46 %.Compered with water extraction,extraction time of microwave-assisted extraction can be reduced greatly,the yield of pectin increase by 9.59 %.Microwave assisted extraction is a time-saving and high effect extraction method of extracting pectin from carrot.