改性聚苯乙烯型大孔吸附树脂的制备及其分离番茄皮渣总黄酮的研究  

Study on Preparation of Modified PolystyreneMacroporous Adsorption Resin and Separation of Total Flavonoids from Tomato Peel Residue

作　　者：王繁瑞 王狄 崔海滨 金鹿 潘乐 WANG Fan-rui;WANG Di;CUI Hai-bin;JIN Lu;Pan Le(College of Chemistry and Chemical Engineering,Xinjiang Agricultural University,Urumqi 830052,China;COFCO Xinjiang TUNHE Process Tomato Engineering and Technology Research Center,Changji 831100,China)

机构地区：[1]新疆农业大学化学化工学院,乌鲁木齐830052 [2]中粮新疆屯河加工番茄技术研究中心,昌吉831100

出　　处：《新疆农业大学学报》2023年第6期485-491,共7页Journal of Xinjiang Agricultural University

基　　金：中粮屯河加工番茄技术研究中心课题(6661427/2522HXKT1)。

摘　　要：本研究以聚苯乙烯型AB-8树脂、羟脯氨酸为原料,采用傅克酰基化修饰制备一种改性树脂并考察其对番茄皮渣黄酮的吸附和洗脱能力。采用傅里叶红外光谱(FT-IR)和扫描电镜测试的方法对AB-8树脂及其傅克酰基化改性后产物的结构进行表征。将3种大孔树脂AB-8、D-101、NKA-9与改性AB-8树脂进行静态吸附解吸能力比较,结果发现改性AB-8树脂的吸附率和解吸率均优于另外3种树脂。改性AB-8树脂吸附番茄皮渣黄酮的最佳工艺条件为:上样液浓度1.25 mg/mL,pH值5,洗脱剂为80%乙醇。静态吸附动力学表明,改性AB-8树脂对番茄皮渣总黄酮具有良好的吸附能力,在吸附4 h时达到吸附饱和,最终吸附率达到65.18%。黄酮含量由7.35 mg/g提高到57.60 mg/g,纯化效果显著。改性AB-8树脂对番茄皮渣中总黄酮分离纯化效果良好。In this study,polystyrene AB-8 resin and hydroxyproline are used as raw materials to prepare a modified resin by Friedel-Crafts acylation,and its adsorption and elution ability of flavonoids from tomato peel residue are to be investigated.During the process,Fourier transform infrared spectroscopy(FT-IR)and scanning electron microscopy(SEM)were used to characterize the structure of AB-8 resin and its Friedel-Crafts acylation modified products.The static adsorption and desorption capacity of the modified AB-8 resin was compared with the three macroporous resins of AB-8,D-101 and NKA-9,and the results showed that the adsorption rate and desorption rate of the modified AB-8 resin were better than those of the other three resins.The optimal adsorption conditions for the modified AB-8 resin were pH 5 and the eluent was 80%ethanol.The static adsorption kinetics showed that the modified AB-8 resin had a good adsorption capacity for the total flavonoids of tomato peel residue,and reached adsorption saturation at 4 h of adsorption,and the final adsorption rate reached 65.18%.The purification effect was significant,and the flavonoid content increased from 7.35 mg/g to 57.60 mg/g.It can be seen that the modified AB-8 resin has a good effect on the separation and purification of total flavonoids in tomato peel pomace.

关 键 词：改性树脂 傅克酰基化 吸附 黄酮分离纯化 

分 类 号：O647.3[理学—物理化学]