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| 分子蒸馏对沙棘果油品质影响的研究 |
| Effect of molecular distillation on quality of Seabuckthorn fruit oil |
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| DOI： |
| 中文关键词: 沙棘果油 分子蒸馏 邻苯二甲酸酯类塑化剂 苯并(a)芘 |
| 英文关键词:Seabuckthorn fruit oil molecular distillation PAEs B(a)P |
| 基金项目: |
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| 中文摘要: |
| 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VE、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0.1 Pa、进料速率1 mL/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1.56 μg/kg，脱除率达到了95.4%，远低于国标限量要求（10 μg/kg）；酸值（KOH）由14.58 mg/g降到0.52 mg/g；VE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%。 |
| 英文摘要: |
| 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 525 mg/100 g correspondent with the lose rates 1.9% and 24.6%, respectively. |
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