Extraction Conditions of Orange Peel Pigment

Chooses the orange peel seasoned by natural air to extract the orange peel pigment,adopts digestion,at first carries on the single factor choice including the digestion reagent,the ratio of liquid and solid,the concentration of digestion reagent,the pH value of digestion reagent,the reaction temperature,the reaction time. Then chooses the four main factors including the ratio of liquid and solid,the extraction time,the extraction temperature,the extraction pH value,to design the orthogonal experiment table with four factors three levels,and obtains the optimum experimental conditions. The experimental results indicate that the effect of orange peel pigment digestion is ideal under the conditions of 95 % ethyl alcohol as digestion reagent,10∶1 (mL/g) liquid-solid ratio,60℃ as extraction temperature,5 h as extraction time.