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| 精炼过程中油茶籽油活性成分和抗氧化性的变化 |
| Changes of bioactive constituents and antioxidant activity of oil-tea camellia seed oil during refining |
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| DOI： |
| 中文关键词: 油茶籽油 精炼 活性物质 抗氧化性 |
| 英文关键词:oil-tea camellia seed oil refining bioactive constituent antioxidant activity |
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| 中文摘要: |
| 研究了精炼工艺对油茶籽油活性成分和抗氧化性的影响。结果表明：经过精炼，油茶籽油中的活性成分不断降低，碱炼后，多酚损失率达到了80.50%；脱色和脱臭后，生育酚损失率分别达到了13.05%和20.69%，甾醇的损失率分别达到了12.85%和13.09%；脱色后，角鲨烯损失率达到了24.99%。抗氧化性方面，油茶籽油对3种自由基的清除能力有一定差异，强弱顺序为ORAC自由基＞ABTS自由基＞DPPH自由基。 |
| 英文摘要: |
| The effects of refining process on the bioactive constituents and antioxidant activity of oil-tea camellia seed oil were studied. The results showed that the contents of bioactive constituents in oil-tea camellia seed oil reduced continuously during refining. After alkali refining，the loss rate of polyphenols reached 80.50%；after bleaching and deodorization，the loss rates of tocopherol reached 13.05% and 20.69% respectively，and the loss rates of sterols reached 12.85% and 13.09% respectively；the loss rate of squalene reached 24.99% after bleaching. In terms of antioxidant activity，there were some differences in the scavenging capacities of oil-tea camellia seed oil on three free radicals，and the scavenging rate on ORAC free radical was the highest，followed by ABTS free radical and DPPH free radical. |
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