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| 精炼对油茶籽油三萜类化合物含量的影响 |
| Effect of refining process on triterpenes content in oil-tea camellia seed oil |
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| DOI：10.12166/j.zgyz.1003-7969/2020.11.005 |
| 中文关键词: 油茶籽油 三萜类化合物 精炼工艺 |
| 英文关键词:oil-tea camellia seed oil triterpene refining process |
| 基金项目:江西省重点研发项目(20192BBF60047，20192ACB60006)；国家市场监督管理总局项目(2019MK040)；江西省市场监督管理局项目(GSJK201916) |
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| 中文摘要: |
| 不同精炼工序油茶籽油经中性氧化铝柱层析分离，正己烷洗脱后，采用GC-MS测定各工序油茶籽油11种三萜类化合物含量，研究精炼对油茶籽油中三萜类化合物含量的影响。结果表明：环阿屯醇和β-香树脂醇为油茶籽油中两种主要的三萜类化合物，毛油中含量分别达到1 043.30 mg/kg和878.24 mg/kg；除羽扇豆醇外，其他三萜类化合物含量随着脱酸、脱色、脱臭精炼过程不断降低，其中β-谷甾醇、β-香树脂醇含量受脱酸影响较大，角鲨烯含量受脱色过程影响较大，环阿屯醇含量受脱色和脱臭影响较大；各精炼工序油茶籽油中均未检出菜籽甾醇、熊果醇和桦木醇。通过研究初步探明油茶籽油主要三萜类化合物类型，为油茶籽油的适度精炼提供数据支撑。 |
| 英文摘要: |
| Oil-tea camellia seed oils from different refining processes were separated by neutral alumina column chromatography with n-hexane as eluent, then GC-MS was used to determine the contents of eleven triterpenes in oil-tea camellia seed oil in each process to study the effect of refining process on triterpenes content in oil-tea camellia seed oil. The results showed that cycloartenol and β-amyrin were the main triterpenes in oil-tea camellia seed oil, and their contents in crude oil reached 1 043.30 mg/kg and 878.24 mg/kg respectively.The contents of triterpenes reduced after deacidification, bleaching and deodorization except lupeol,in which β-sitosterol and β-amyrin contents were greatly affected by deacidification, squalene content was greatly affected by bleaching, and cycloartenol content was greatly affected by bleaching and deodorization. No brassicasterol, uvaol and betulin were detected in oil-tea camellia seed oil in each refining process.Through the study, the main triterpene types in oil-tea camellia seed oil were initially identified, and data support was provided for the proper refining of oil-tea camellia seed oil. |
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