摘要
分别采用截留分子质量为50 ku、100 ku、150 ku、200 ku的超滤膜对酱油原油进行过滤。试验结果表明,几种型号超滤膜过滤对酱油主要指标氨基酸态氮几乎没有影响。从沉淀去除而言,50 ku和100 ku的超滤膜对酱油原油沉淀的去除率更好,分别达到了91.1%和91.7%。从过滤效果而言,50 ku和100 ku超滤膜更佳,过滤后酱油滤液的OD650 nm值分别为0.10、0.15;浑浊度值分别为1 750、1 800。相同条件下四种超滤膜再生后通量恢复率分别为99.5%、97.5%、95.0%、92.5%。从过滤效果、过滤后滤液稳定性、过滤后清洗膜再生通量恢复率等方面综合考虑,截留分子质量为100 ku的超滤膜更适合应用于酱油的提纯过滤。
The crude soy sauce was filtered using 50 ku, 100 ku, 150 ku and 200 ku ultrafiltration membrane, respectively. The results showed that several types of ultrafiltration membrane filtration had little effect on the main parameters of amino acid nitrogen in soy sauce. The removal rate of 50 ku and 100 ku ultrafiltration membrane on original precipitation of soy sauce were better, which reached 91.1% and 91.7%, respectively. The filtration effect of 50 ku and 100 ku ultrafiltration membrane were better. The OD650nm of soy sauce after filtration was 0.10 and 0.15, respectively and the turbidity value was 1 750 and 1 800, respectively. Under the same conditions, the flux recovery rate of four ultrafiltration membranes was 99.5%, 97.5%, 95.0%, and 92.5%, respectively. Based on an overall consideration of the filtering effect, filtration stability and recovery rate of membrane regeneration after filtration, the ultrafiltration membrane with the molecular weight of 100 ku was more suitable for the purification process of soy sauce.
出处
《中国酿造》
CAS
北大核心
2016年第5期56-59,共4页
China Brewing
基金
创新强校工程专项资金项目(1A20201)
创新强校工程专项资金项目(1A20205)
创新强校工程专项资金项目(1A10605)
创新强校工程专项资金项目(2A10905)
创新强校工程专项资金项目(2A20301)
广东高校特色调味品工程技术开发中心建设项目(GCZX-B1103)
关键词
超滤
酱油
流量
通量
ultrafiltration
soy sauce
flow rate
flux
作者简介
王文文(1982-),女,讲师,硕士,主要从事生物工程方面的研究工作。
通讯作者:李平凡(1973-),男,教授,硕士,主要从事食品生物技术教学与科研工作。