| 短波紫外照射对玫瑰香葡萄品质和白藜芦醇及其衍生物含量的影响 |
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| 引用本文： | 李一凡,王凤玲,赵绮晴,杨丹.短波紫外照射对玫瑰香葡萄品质和白藜芦醇及其衍生物含量的影响[J].食品科学,2017,38(18):175-179. |
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| 作者姓名： | 李一凡 王凤玲 赵绮晴 杨丹 |
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| 作者单位： | （天津商业大学生物技术与食品科学学院，天津市食品与生物技术重点实验室，天津 300134） |
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| 摘 要： | 采用超高效液相色谱-串联质谱法对玫瑰香葡萄中白藜芦醇及其衍生物的含量进行测定。结果表明,当玫瑰香葡萄经过剂量为4.5 k J/m~2的短波紫外照射后,20℃贮藏至48 h时,白藜芦醇和白藜芦醇苷含量达到最高,分别为90.29 μg/g和163.28 μg/g;贮藏至72 h时,紫檀芪含量达到最高38.67 μg/g。短波紫外照射也可以降低可溶性固形物、VC、可滴定酸等品质评价指标的下降速率。
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| 关 键 词： | 玫瑰香葡萄 白藜芦醇 超高效液相色谱-串联质谱 短波紫外 |
Effect of UV-C Irradiation on Quality and the Contents and Resveratrol and Its Derivatives in Muscat Grape |
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| LI Yifan,WANG Fengling,ZHAO Qiqing,YANG Dan.Effect of UV-C Irradiation on Quality and the Contents and Resveratrol and Its Derivatives in Muscat Grape[J].Food Science,2017,38(18):175-179. |
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| Authors: | LI Yifan WANG Fengling ZHAO Qiqing YANG Dan |
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| Affiliation: | (Tianjin Key Laboratory of Food and Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China) |
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| Abstract: | In this study, ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to determine the contents of resveratrol and its derivatives in Muscat grapes. After being irradiated with 4.5 kJ/m2 UV-C, Muscat grapes were stored at 20 ℃. The experimental results showed that the contents of resveratrol and resveratrol glucoside increased to their maximum values of 90.29 and 163.28 μg/g,?respectively, after 48 h of storage. After 72 h of storage, the content of pterostilbene increased to its maximum level (38.67 μg/g). At the same time, UV-C radiation also decreased the?rate of reduction in soluble solids, vitamin C and titratable acid. |
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| Keywords: | Muscat grape resveratrol UPLC-MS/MS ultraviolet-C (UV-C) |
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