吸附法同时脱除菜籽油苯并芘及色泽最佳工艺条件研究.pdf

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CHINA OII AND FATS
20]3Vol.38No.12
吸附法同时脱除菜籽油苯并芘及色泽最佳工艺条件研究
张小涛,刘玉兰,赵欢欢
(河南工业大学粮油食品学院,郑州450001
摘要;研究采用吸附法同时脱除莱籽油中苯并茈(BaP)及色泽的エ艺条件。通过单因试验分别
考察了吸附剂种类、吸附剂用量、吸附温度和吸附时间对莱籽油中BaP脱除效果及色泽的影响,并
采用正交试验对吸附脱除莱籽油中BaP和色泽的工艺条件进行优化。优化的工艺条件为:采用混
合吸附剂,混合吸附剂(活性炭和活性白土)用量0.03%+4%(占油质量),吸附时间20min,吸附
温度100℃。在优化エ艺条件下,菜将油中BaP脱除率达到95%,BaP含量为0.40g/kg,菜籽油
色泽R值为3、Y值为31。
关键词:菜籽油;苯并茈;吸附;脱除率;脱色
中图分类号:1TS224.6:TS207.7文献标志码:A文章编号:1003-7969(2013)12-0010-05
Optimization of simultaneous removing benzo(a)pyrene and
color from rapeseed oil by adsorption
ZHANG Xiaotao. LIU Yulan, ZHAO Huanhuan
School of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China)
Abstract: The process of adapting adsor ent method to remove benan(a)pyrene(Bap)and color from
rapeseed oil was studied. The effe ts of adsorbent type, adsorbent dosage, adsorption temperature and
adsorption time on removal of Bap and color from rapeseed oil were investigated by single factor exper
ment, and the optimal conditions of simultaneous removing Bap and color from rapeseed oil were obtaine
by orthogonal experiment as follows: dosage of mixed adsorbents of activated carbon and activated clay
0.03%+4%(based on the mass of rapeseed oil ) adsorption time 20 min, adsorption temperature
100. Under the optimal conditions, removal rate of Bap reached 96%, the residual content of Bap was
0. 40 wg/kg in rapeseed oil, and the R value and Y value were 3 and 31, respectivel
Key words: rapeseed oil; benzo( a )pyrene adsorption; removal rate; bleaching
苯并芘(BaP)为国际癌症研究机构确定的人类脱色条件下,吸附剂对油茶籽油中BaP的脱除作
致癌物り。CB2716-2005《食用植物油卫生标准》用,发现在活性白土用量为油质量的3%时,再加人
规定食用植物油中BaP的含量不超过10g/kg,欧油质量0.3%的活性炭,即可达到单独使用油质量
盟208/2005号文件规定食用油中BaP的最大限量3%活性炭对油中RaP的脱除效果。对吸附法脱除
为2gg/kg。然而,原料污染或加工条件不当都可芝麻油中BaP及脱色效果的研究结果表明,采用
能导致油脂中BaP含量超标。Dujn等?对菜籽 NORIT SA4 PAH IIF8014-2活性炭比普通活性
油、棕榈油和大豆油抽样检测,发现其中BaP超标炭对芝麻油中BaP的脱除效果高10倍列。本课
率约为10%。罗凡等研究了在优化的油脂吸附题以人为配制的BaP超标菜籽油为试验油样,
BaP脱除率和脱色效果为考察指标,研究吸附法
收稿日期:2013-03-15;修回日期:2013-08-19
同时脱除菜籽油中BaP及色泽的最适宜工艺
基金项目:家自然科学基金项目(312711):河南省食用条件。
油脂倍增计划(豫财贸[2910]169号)
材料与方法
作者简介:张小涛(1988),男,在读硕土,研究方向为油料油1.1试验材料
脂质量与安全(E-mai)zhanpxiaotao!209@163.como
1.1.1原料、试剂
信作者:刘玉兰,教授(E-mal) liuyi7446@163.c0m
菜籽油,经检测其BaP含量为0.72g/kg,色
方方数据