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| 油茶籽油抗氧化和防紫外辐射活性分析及多酚类物质提取研究 |
| Antioxidation and anti-ultraviolet radiation activities of oil-tea camellia seed oil and extraction of polyphenols |
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| DOI： |
| 中文关键词: 油茶籽油 抗氧化 防紫外辐射 多酚 |
| 英文关键词:oil-tea camellia seed oil antioxidation anti-ultraviolet radiation polyphenol |
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| 中文摘要: |
| 以油茶籽毛油及其精炼油为试材，对其抗氧化和防紫外辐射活性进行分析，采用常规水浴法和微波辅助法对其多酚类物质进行提取。结果表明：两种油茶籽油都具有较强的抗氧化活性，毛油相对于精炼油具有更强的抗氧化作用；在200～400 nm的紫外波长区，油茶籽油具有较高的吸光值，尤其是紫外照射10 min后其紫外吸光值最高，对防紫外辐射具有一定的作用；多酚类物质的含量分别为15.442 8 μg/mL（常规毛油）、10.038 3 μg/mL（常规精炼油）、34.312 5 μg/mL（微波毛油）、31.431 0 μg/mL（微波精炼油），微波辅助法提取油茶籽油中多酚类物质含量高于常规水浴法的；推测油茶籽油抗氧化和防紫外辐射活性强弱与其多酚含量高低有一定相关性。 |
| 英文摘要: |
| With crude and refined oil-tea camellia seed oils as materials, its antioxidant and anti-ultraviolet radiation activities were analyzed, and the polyphenols were extracted by conventional water bath method and microwave-assisted extraction method. The results showed that the two kinds of oil-tea camellia seed oils had strong antioxidant activity, and crude oil had stronger antioxidant activity than refined oil. In the ultraviolet wavelength range of 200-400 nm, oil-tea camellia seed oil had higher absorption value, especially after ultraviolet irradiation for 10 min, the ultraviolet absorption value was the highest, showing a certain effect on anti-ultraviolet irradiation. The contents of polyphenols in conventional crude oil, conventional refined oil, microwave crude oil and microwave refined oil were 15.442 8, 10.038 3, 34312 5 μg/mL and 31.431 0 μg/mL, respectively. The content of polyphenols in oil-tea camellia seed oil extracted by microwave-assisted extraction method was higher than that extracted by conventional water bath method. It was presumed that antioxidant activity and anti-ultraviolet radiation activity of oil-tea camellia seed oil had some relevance with the polyphenol content. |
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