脐橙皮中黄酮类化合物与果胶的分离和提取研究

Separation and Abstraction of Flavonoid and Pectin from Orange Peel

黄酮类化合物是具备主要生物活性的天然产物,果胶是人体7大营养素中膳食纤维的主要成分.实验就黄酮和果胶提取分别作L9(34)和L16(44)正交化实验.工艺条件表明,提取黄酮的较佳工艺条件是:固液比1∶30,超声处理时间55 min,处理温度50℃,浸提液浓缩得到粗黄酮.提取黄酮后的脐橙皮渣中提取果胶的较佳工艺条件是:70℃的温度,提取时间为55 min,pH=2.0,固液提取比为1∶25.

Objective： making L9 （3^4） and L16 （4^4 ） orthogonal experiments for separtion and abstraction of flavonoid and pection from orange peel. Results： the better craft conditions for withdrawing the flavanone are solid/fluid ratio 1 ： 30, supersonic process time 55 rains, processing temperature 50 ℃, The better craft conditions for withdrawing the pection are temperature 70 ℃, time 55 mins, solid/fluid ratio 1 ： 25, pH 2. 0.