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| TD-GC-MS技术分析不同提取方法对椰子油挥发性成分的影响 |
| Effect of different extraction methods on volatile components in coconut oil analyzed by TD-GC-MS technology |
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| DOI： |
| 中文关键词: 椰子油 提取 挥发性成分 热脱附 气相色谱-质谱联用 |
| 英文关键词:coconut oil extraction volatile component thermal desorption (TD) gas chromatography-mass spectrometry (GC-MS) |
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| 中文摘要: |
| 研究采用热脱附结合气质联用技术（TD-GC-MS）对冷榨法、超临界法、亚临界法和溶剂提取法所得椰子油中的挥发性成分组成与含量进行分析测定。结果表明：从4种椰子油中共鉴定出83种挥发性成分，主要包括醇类、酸类、酮类、酯类、醛类、烃类等化合物；亚临界法制得的椰子油中检出醇类化合物种类最多，达8种，与其他3种椰子油几乎无共同性；辛酸在4种椰子油中均有检出，在亚临界油中含量最高，达58.75%；酮类及醛类化合物在4种椰子油中种类与含量均较少；酯类化合物在各椰子油中种类最为丰富，δ-辛醇内酯在溶剂提取油中含量最高，达21.53%；D-柠檬烯在溶剂提取油中含量最高，为2.68%；1,3,4,6,7,8-六氢-4,6,6,7,8,8-六甲基环五-γ-2-苯并吡喃在超临界油中含量最高，为2.86%。 |
| 英文摘要: |
| The composition and content of volatile components in coconut oils obtained by cold pressing method, supercritical method, subcritical method and solvent extraction method were analyzed by thermal desorption combined with gas chromatography mass spectrometry (TD-GC-MS). The results showed that 83 kinds of volatile components were identified from four kinds of coconut oils, including alcohols, acids, ketones, esters, aldehydes and hydrocarbons. Subcritical extracted coconut oil obtained the largest species of alcohol by the detection, up to eight, and almost no commonality with the other three kinds of coconut oils. Octanoic acid was detected in all the four kinds of coconut oils, and the content was the highest in subcritical extracted coconut oil, up to 58.75%. Ketones and aldehydes were not abundant both in species and content in the four kinds of coconut oils. Species of esters were the most abundant in the four coconut oils. The contents of?δ-octanol lactone and D-limonene were the highest in the solvent extracted coconut oil, up to 21.53% and 2.68% respectively. The content of 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopentane- γ-2-benzopyran was the highest in the supercritical extracted coconut oil, up to 2.86%. |
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