摘要
研究乙醇提取和大孔树脂纯化苹果多酚的工艺条件。通过单因素和多因素试验考察操作条件对乙醇提取率的影响因素;利用静态试验考察大孔树脂纯化苹果多酚的吸附性能和洗脱参数。试验结果表明,乙醇提取苹果多酚的最优工艺条件为乙醇浓度80%,提取温度80℃,料液比1:3(g/L),总提取时间为60min;XDA-7型树脂纯化苹果多酚的最优工艺条件为吸附温度25℃、时间为2h,提取液浓度为0.50g/L～0.60g/L、pH值为5,解吸温度30℃,解吸液为70%的乙醇溶液。
Study the extraction technological parameters with ethanol and the purification process by macroporous resin of apple polyphenols. The extraction condition was studied by mono-factor and orthogonal experiment. The characteristics and parameters of purification process were investigated by the static absorption and elution experiments. It determines the optimal extraction condition： the concentration of ethanol is 80 %, the temperature is 80 ℃, the ratio between apple pomace to extractant is 1：3 （g/L）, and the extraction time is 60 rain. The concentration of 0.50 g/L-0.60 g/L, pH 5.0, absorption temperature 25 ℃, absorption time 2 h, and the elution temperature 30 ℃, the elution concentration 70 % were the optimal purification condition of XDA-7 resin.
出处
《食品研究与开发》
CAS
北大核心
2009年第11期21-25,共5页
Food Research and Development
基金
陕西省科技厅项目(07JK435)
陕西省化学反应工程重点实验室项目(07JK435)
陕西省普通高等学校重点学科建设项目(F8200-02)
延安市科技计划项目(080115-8)
延安大学科研基金项目(YD2006-09)
关键词
苹果多酚
提取
大孔吸附树脂
纯化
apple polyphenols
extraction by ethanol
macroporous resin
purification
