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| 紫外LED冷光技术对花生油中黄曲霉毒素B1降解效果的研究 |
| Degradation of aflatoxin B1 in peanut oil by ultraviolet LED cold-light technology |
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| DOI： |
| 中文关键词: 紫外LED冷光技术 黄曲霉毒素B1 花生油 酸价 过氧化值 |
| 英文关键词:ultraviolet LED cold-light technology aflatoxin B1 peanut oil acid value peroxide value |
| 基金项目: |
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| 中文摘要: |
| 以10种黄曲霉毒素B1（AFB1）含量不同的花生油为样品，采用紫外LED冷光照射花生油，探究紫外LED冷光技术对花生油中AFB1的降解效果。结果表明：紫外LED冷光照射能有效降低花生油中AFB1的含量，随着紫外照射时间的延长，花生油中AFB1含量呈逐渐降低的趋势；当样品中AFB1含量小于等于650 μg/kg，紫外LED冷光照射时间120 s，可达到国家标准要求的花生油中AFB1含量不超过20 μg/kg的要求；而当样品中AFB1含量大于650 μg/kg，需延长其照射时间（样品3照射时间1 200 s），才可达到国家标准要求的花生油中AFB1含量不超过20 μg/kg的要求；相同的照射时间（60 s）下，在3 500~450 μW/cm2的照射强度下，随照射强度的降低AFB1降解率降低。花生油经紫外LED冷光照射后，其酸价、过氧化值没有显著的变化。 |
| 英文摘要: |
| Ten peanut oil samples with different aflatoxin B1(AFB1) contents were treated by ultraviolet LED cold-light technology. The degradation effect of ultraviolet LED cold-light technology on AFB1 in peanut oil was investigated. The results showed that the ultraviolet LED cold-light could effectively reduce the AFB1 content in peanut oil. The AFB1 content in peanut oil decreased gradually with the extension of ultraviolet irradiation time. When the peanut oil with the AFB1 content less than 650 μg/kg was treated for 120 s by ultraviolet LED irradiation, the AFB1 content in peanut oil could not exceed 20 μg/kg of the national standard. When the AFB1 content in sample was higher than 650 μg/kg, the irradiation time needed to be extended to meet the requirements of the national standard(the irradiation time of sample 3 was 1 200 s). At the same irradiation time(60 s), the degradation rate of AFB1 decreased with the decrease of ultraviolet LED irradiation intensity in the range of 3 500-450 μW/cm2, and the peroxide value and acid value of peanut oil treated by ultraviolet LED cold-light changed little. |
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