CAJ | 학술논문

为进一步推动南瓜作物的深加工及高附加值生产,采用自行研制的全自动超滤浓缩中试系统对南瓜多糖溶液进行超滤浓缩,分别考察超滤温度、超滤时间、超滤压力及进料液浓度对超滤膜通量的影响,发现膜通量随温度和压力的增加而增大,随超滤时间和料液浓度的增加而减小.对超滤膜的污染情况也进行研究,发现随膜使用时间的延长,超滤过程将造成难以恢复的膜污染.
위진일보추동남과작물적심가공급고부가치생산,채용자행연제적전자동초려농축중시계통대남과다당용액진행초려농축,분별고찰초려온도、초려시간、초려압력급진료액농도대초려막통량적영향,발현막통량수온도화압력적증가이증대,수초려시간화료액농도적증가이감소.대초려막적오염정황야진행연구,발현수막사용시간적연장,초려과정장조성난이회복적막오염.
In order to promote the deep processing of pumpkin and obtain a high value-added pumkin products, the ultrafiltration of pumpkin polysaccharide (PP) solution was carried out using a self-designed pilot-scale ultrafiltration system, and the permeation flux varying with temperature, time, pressure and feeding concentration was measured. Moreover, the membrane pollution during the ultrafdtration was revealed. Results indicated that permeation flux exhibited an increase with increasing temperature and pressure but a decrease with incrasing time and feeding concentration, and a membrane pollution difficult to recover may occur due to prolonged operating time.