Study on Extracting Condition of Pectin from Shaddock Peel

Using the acid extraction ethyl alcohol precipitation method to withdraw the pectin from the pumelo peel,distinction adding water material ratio,pH value,extraction temperature,extraction time,factors and so on ethyl alcohol density were carried on the single factor experiment.These factors to the pectin extraction effect influence were studied.Through analysis of the result,acid extraction pectin best technological conditions for Shui Liaobi was 15 ∶1,acidity control in the pH value 2.0,temperature control in 90 ℃,the extraction pectin time was 60 min,and the ethyl alcohol density was 95%.The experimental result indicated the design optimization technological conditions production pectin was feasible,the pectin quality met the requirement,and its production rate was also ideal.