摘要
研究了分子蒸馏法处理沙棘果油,对其中邻苯二甲酸丁酯(DBP)、邻苯二甲酸二乙基己酯(DEHP)和苯并(a)芘的脱除效果以及V_E、α-生育酚、类胡萝卜素、β-胡萝卜素的损失情况进行研究。结果表明:分子蒸馏工艺参数设定为蒸馏温度180℃、刮膜转速300 r/min、系统真空度0.1Pa、进料速率1 m L/min的情况下,蒸馏后的沙棘果油中DBP、DEHP残留量低于国标检出限(均为0.1 mg/kg),显著优于国标限量要求(DBP含量不大于0.3 mg/kg、DEHP含量不大于0.5 mg/kg);苯并(a)芘的残留量为1.56μg/kg,脱除率达到了95.4%,远低于国标限量要求(10μg/kg);酸值(KOH)由14.58 mg/g降到0.52 mg/g;V_E和α-生育酚经分子蒸馏后含量分别为72.91 mg/100 g和67.65 mg/100 g,损失率分别为65.2%和59.2%;类胡萝卜素和β-胡萝卜素的含量分别下降到196.87 mg/100 g和5.25 mg/100 g,损失率分别为1.9%和24.6%。
Seabuckthorn fruit oil was processed by molecular distillation then the removal effect of phthalic acid esters （PAEs） and benzo （a） pyrene （ B （a） P）, and lose of VE, α - tocopherol, carotenoids and β - carotene were studied. The results showed that under the conditions of distillation temperature 180 ℃, rate of feed 1 mL/min,knifing speed 300 r/min and system vacuum degree 0.1 Pa, the DBP and DEHP residues were under the national standard detection limit （0. 1 mg/kg）, which was far more below the national standard limits（DBP≤0.3 mg/kg,DEHP≤0.5 mg/kg）. The B（a） P residue in the oil was 1.56 μg/kg and the removal rate reached 95.4% , which was far more below the national standard limit （10 μg/kg）. The acid value reduced from 14.58 mgKOH/g to 0.52 mgKOH/g. The contents of VE and α - tocopherol after molecular distillation were 72.91 mg/100 g and 67.65 mg/100 g respectively, and the lose rates were 65.2% and 59.2% respectively. The contents of carotenoids and β - carotene reduced to 196. 87 mg/100 g and 5.25 mg/100 g correspondent with the lose rates 1.9% and 24.6%, respectively.
作者
司天雷
马靖轩
马传国
SI Tianlei1,2, MA Jingxuan1 , MA Chuanguo1,2(1. College of Food Science and Technology, Henan University of Teehnology,Zhengzhou 450001, China; 2. National Engineering Laboratory for Wheat ＆ Corn Further Processing, Zhengzhou 450001, Chin)
出处
《中国油脂》
CAS
CSCD
北大核心
2018年第5期11-15,共5页
China Oils and Fats
基金
"十三五"国家重点计划支持项目(2016YFD0401405)
