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[1]仲兆祥,朱丽婷,黄瑶,等.茶叶特征香气组分的渗透汽化富集[J].南京工业大学学报(自然科学版),2014,36(06):59-65.[doi:10.3969/j.issn.1671-7627.2014.06.011]
 ZHONG Zhaoxiang,ZHU Liting,HUANG Yao,et al.Concentration of valuable tea aroma components by pervaporation[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(06):59-65.[doi:10.3969/j.issn.1671-7627.2014.06.011]
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茶叶特征香气组分的渗透汽化富集()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年06期
页码:
59-65
栏目:
出版日期:
2014-11-21

文章信息/Info

Title:
Concentration of valuable tea aroma components by pervaporation
文章编号:
1671-7627(2014)06-0059-07
作者:
仲兆祥朱丽婷黄瑶孙芸姚忠
南京工业大学 食品与轻工学院,江苏 南京 211800
Author(s):
ZHONG ZhaoxiangZHU LitingHUANG YaoSUN YunYAO Zhong
College of Food Science and Light Industry,Nanjing Tech University,Nanjing 211800,China
关键词:
渗透汽化 茶叶香气 PDMS复合膜
Keywords:
pervaporation tea aroma composite PDMS membrane
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2014.06.011
文献标志码:
A
摘要:
研究2种不同支撑体的聚二甲基硅氧烷/聚偏氟乙烯(PDMS/PVDF)膜和PDMS/Al2O3膜对茶叶特征香气成分顺式-3-己烯醇(叶醇)、芳樟醇、反式-2-己烯醛以及苯甲醇回收的分离性能。考察操作条件对4种芳香物单组分和混合组分的渗透汽化性能的影响。结果表明:渗透汽化膜对单组分实验芳香组分具有较好的分离因子,随着组分浓度的增加,芳香物的分离因子下降; 随着温度的升高,分离因子呈先上升后下降的趋势。在芳香物质量分数为0.01%、温度为30 ℃的条件下,叶醇、芳樟醇、反式-2-己烯醛和苯甲醇的分离因子分别为64.5、31.5、29.3和28.9。混合体系中各组分的分离因子较单组分体系下降。PDMS/PVDF复合膜比PDMS/Al2O3复合膜具有更高的芳香组分分离因子和芳香物分通量。
Abstract:
Tea aroma component recovery by polydimethyl siloxane/polyvinylidene fluoride(PDMS/PVDF)membrane and PDMS/Al2O3 membrane on different supports was studied.Four kinds of tea aroma components, called the cis-3-hexenol,linalool,trans-2-hexenal,and benzyl alcohol,were chosen as representatives.The effects of operating conditions on the pervaporation performances of each aroma component from four ones and their mixture were investigated.Results showed that pervaporation membrane had high separation factor for all of four tea aroma components in the single component system.With the increase of the component concentration,the separation factor of aroma decreased.The separation factor of aroma would firstly be increased and then decreased with the increase of the temperature.In conditions of 0.01% and 30 ℃,the separation factor of cis-3-hexenol,linalool, trans-2-hexenal and benzyl alcohol were 64.49,31.45,29.31, and 28.87, respectively.In the mixed system, the separation factor was decreased.The PDMS/PVDF membrane had higher separation factor and higher aroma flux than PDMS/Al2O3 membrane.

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备注/Memo

备注/Memo:
收稿日期:2014-04-11
基金项目:国家自然科学基金(21276124); 江苏省科技支撑计划(BE2012399)
作者简介:仲兆祥(1979—),男,江苏兴化人,副教授,博士,主要研究方向为膜分离技术,E-mail:njutzzx@163.com..
更新日期/Last Update: 2014-11-20