食品科学 ›› 2017, Vol. 38 ›› Issue (18): 175-179.doi: 10.7506/spkx1002-6630-201718028

• 成分分析 • 上一篇    下一篇

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

李一凡,王凤玲,赵绮晴,杨丹   

  1. (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)
  • 出版日期:2017-09-25 发布日期:2017-09-04

Effect of UV-C Irradiation on Quality and the Contents and Resveratrol and Its Derivatives in Muscat Grape

LI Yifan, WANG Fengling, ZHAO Qiqing, YANG Dan   

  1. (Tianjin Key Laboratory of Food and Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China)
  • Online:2017-09-25 Published:2017-09-04

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?kJ/m2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。

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

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.

Key words: Muscat grape, resveratrol, UPLC-MS/MS, ultraviolet-C (UV-C)

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