基于红糖生产的蔗汁陶瓷膜过滤工艺技术  

Ceramic Membrane Filtration of Cane Juice for Brown Sugar Production

作　　者：李文 谢彩锋[4] 彭文博 邢卫红[2] 杭方学[4] 徐勇士 李凯[4] LI Wen;XIE Caifeng;PENG Wenbo;XING Weihong;HANG Fangxue;XU Yongshi;LI Kai(Postdoctoral Innovation Practice Base of Jiangsu Province,Jiangsu Jiuwu Hi-Tech Company Limited,Nanjing 211808,China;College of Chemical Engineering,Nanjing Tech University,Nanjing 211816,China;Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,School of Chemistry and Chemical Engineering,Guangxi University for Nationalities,Nanning 530008,China;College of Light Industry and Food Engineering,Guangxi University,Nanning 530004,China;Guangxi Baiguitang Food Science and Technology Company Limited,Guigang 537121,China)

机构地区：[1]江苏久吾高科技股份有限公司,江苏省博士后创新实践基地,江苏南京211808 [2]南京工业大学化工学院,江苏南京211816 [3]广西民族大学化学化工学院,广西林产化学与工程重点实验室,广西南宁530008 [4]广西大学轻工与食品工程学院,广西南宁530004 [5]广西百桂堂食品有限公司,广西贵港537121

出　　处：《食品科技》2022年第1期61-69,共9页Food Science and Technology

基　　金：广西自然科学基金青年科学基金项目(2021GXNSFBA076002);广西创新驱动发展专项资金项目(桂科AA17204092)。

摘　　要：采用孔径为8、50 nm及500 nm的陶瓷膜对蔗汁进行过滤澄清生产红糖,解决传统红糖制作利用上浮撇泡方式处理蔗汁清净效果差导致成品糖品质低的问题。对比不同孔径陶瓷膜过滤蔗汁渗透通量大小、清净效果及能耗高低,结合红糖生产工艺需求,得出孔径为50 nm的陶瓷膜最适用于蔗汁过滤澄清生产红糖。在适合的操作条件下,考察孔径为50 nm的陶瓷膜过滤蔗汁长时间运行通量衰减状况及清净效果,结果表明:陶瓷膜过滤蔗汁连续运行36 h平均渗透通量高达203 L/m;·h,蔗汁经陶瓷膜过滤后浊度从3050 NTU下降至0.77 NTU,清净效率高达99.98%,能满足工业化生产需求。此外,膜过滤对蔗汁中蔗糖、还原糖及多酚等有用成分或营养物质截留率较低,表明采用陶瓷膜过滤后的蔗汁来生产红糖不会显著影响成品糖本身功能价值。In order to solve the problem of poor clarification of cane juice in conventional brown sugar (BS) production and improve the quality of BS,the filtration (clarification) of cane juice using ceramic membranes with pore sizes of 8,50 nm and 500 nm for BS production were investigated.By comparing the permeate flux,clarification effect,and energy consumption of different membranes for treating cane juice on the basis of BS production,we concluded that the ceramic membrane with pore size of 50 nm is the most suitable for cane juice clarification to produce BS.Under the suitable operating conditions,the flux decline and clarification effect in ceramic membrane (50 nm) treatment of cane juice were investigated.Results showed that the average flux of ceramic membrane for cane juice filtration reached up to 203 L/m;·h after 36 h continuous operation and the turbidity of cane juice decreased from 3050 NTU to 0.77 NTU (99.98% of clarification efficiency),which could meet the requirement of industrial production.Moreover,the rejection rate of sucrose,reducing sugar,polyphenols and other useful components/nutrients in cane juice by membrane filtration was low,indicating that the functional value of finished BS would not be significantly affected by the ceramic membrane filtration.

关 键 词：陶瓷膜 过滤 蔗汁 红糖 澄清 

分 类 号：TS244.2[轻工技术与工程—制糖工程]