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| 超临界CO2萃取二级分离火麻仁油中生育酚及主要甘油三酯组成分析 |
| Compositions of tocopherol and triglyceride of hemp seed oil by supercritical CO2 extraction and two-step separation |
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| DOI： |
| 中文关键词: 火麻仁油 超临界CO2萃取 甘油三酯 生育酚 |
| 英文关键词:hemp seed oil supercritical CO2 extraction triglyceride tocopherol |
| 基金项目: |
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| 中文摘要: |
| 以脱壳火麻仁为原料，采用超临界CO2萃取二级分离火麻仁油，通过控制分离参数，分离釜Ⅰ及分离釜Ⅱ分别收集火麻仁油，应用超高效液相色谱-高分辨质谱联用及国标方法分别分析比较其甘油三酯及生育酚组成。结果表明：分离釜Ⅰ及分离釜Ⅱ得到的火麻仁油甘油三酯及生育酚组成和含量存在一定差异，分离釜Ⅰ火麻仁油的甘油三酯组成主要包括三亚油酸甘油三酯、二亚油酸亚麻酸甘油三酯及油酸二亚油酸甘油三酯，含量分别为32.1%、29.8%及19.6%；分离釜Ⅱ火麻仁油的甘油三酯组成主要包括二亚油酸亚麻酸甘油三酯、三亚油酸甘油三酯及油酸二亚油酸甘油三酯，含量分别为33.9%、27.6%及26.4%。火麻仁油生育酚以γ-生育酚为主，其次为α-生育酚，δ-生育酚最少，分离釜Ⅱ中火麻仁油生育酚含量高于分离釜Ⅰ中火麻仁油生育酚含量。采用超临界CO2萃取二级分离火麻仁油，可以初步实现甘油三酯及生育酚组分的选择性分离。 |
| 英文摘要: |
| Using shelled hemp seed as raw material, hemp seed oil was extracted by supercritical CO2 extraction and two-step separation and was collected separately from separation kettle Ⅰ and separation kettleⅡ through controlling the separation parameters. Then the compositions of triglyceride and tocopherol of the hemp seed oil obtained were analyzed by ultra high performance liquid chromatography-mass spectrometry method and national standard method respectively. The results showed that there were some differences in compositions of triglyceride and tocopherol of hemp seed oils collected from separation kettleⅠand separation kettle Ⅱ. Hemp seed oil gathered from separation kettle Ⅰ basically consisted of trilinolein(32.1%), dilinolenic acid-linoleic acid triglyceride(29.8%)and oleic acid-dilinoleic acid triglyceride(19.6%); while hemp seed oil gathered from separation kettle Ⅱ basically consisted of dilinoleic acid-linolenic acid triglyceride(33.9%), trilinolein(27.6%) and oleic acid-dilinoleic acid triglyceride(26.4%). Tocopherol composition of hemp seed oil was main γ-tocopherol, followed by α-tocopherol, δ-tocopherol was the least. Tocopherol content of hemp seed oil collected from separation kettle Ⅱwas more than that collected from separation kettleⅠ. By supercritical CO2 extraction coupled with two-step separation, the selective separations of triglyceride and tocopherol of hemp seed oil could be initially achieved . |
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