CAJ | 학술논문

通过吸附和解吸实验筛选适合吸附分离杨桃渣多酚的大孔吸附树脂并确立纯化工艺参数.结果表明,AB-8树脂为吸附分离杨桃渣多酚物质的优良材料,较佳吸附条件为上样溶液多酚质量浓度0.9mg/mL、pH4.5、上样速率0.5mL/min;较佳洗脱条件为乙醇体积分数60%、洗脱速率0.5mL/min,在此条件下,杨桃渣多酚纯化样品多酚含量为58.82%.
통과흡부화해흡실험사선괄합흡부분리양도사다분적대공흡부수지병학립순화공예삼수.결과표명,AB-8수지위흡부분리양도사다분물질적우량재료,교가흡부조건위상양용액다분질량농도0.9mg/mL、pH4.5、상양속솔0.5mL/min;교가세탈조건위을순체적분수60%、세탈속솔0.5mL/min,재차조건하,양도사다분순화양품다분함량위58.82%.
According to adsorption and desorption performance towards polyphenols,an optimal macroporous resin was chosen from D4020,NKA-9,NKA-Ⅱ and AB-8 resins for purifying crude polyphenols extracted from carambola dregs.AB-8 resin was found to have the best adsorption and desorption performance towards polyphenols and consequently,was chosen.The optimal adsorption conditions of carambola polyphenols onto AB-8 resin were determined as follows:polyphenol concentration of sample solution 0.9 mg/mL,sample pH 4.5,and feeding rate 2 BV/h,and the optimal ethanol concentration and flow rate for the desorption of carambola polyphenols were 60% and 0.5 ml/min.The content of carambola polyphenols in purified products under these conditions was 58.82%.