文章摘要
王宁馨 赵彤 王雅蓉 乔俊杰 朱传合.超声处理对鲜切马铃薯中营养成分的影响[J].,2014,14(26):5023-5026
超声处理对鲜切马铃薯中营养成分的影响
Effects of Ultrasonic Processing on Nutritional Compositions ofFresh-cut Potatoes
  
DOI:
中文关键词: 超声处理  鲜切马铃薯  营养成分
英文关键词: Ultrasonic processing  Fresh-cut potatoes  Nutritional compositions
基金项目:国家“十二五”科技支撑项目( 2012BAK17B 05);山东省自然科学基金项目(ZR2012CM038);
作者单位
王宁馨 赵彤 王雅蓉 乔俊杰 朱传合 山东农业大学食品科学与工程学院 
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中文摘要:
      目的:研究不同超声处理对鲜切马铃薯中的营养成分产生的影响,旨在阐明超声处理技术应用到鲜切马铃薯保鲜的中可行 性。方法:分别采用Folin-Ciocaileu 比色法、考马斯亮蓝法、直接滴定法、指示剂滴定法、紫外分光光度计法测定总酚、蛋白质、还原 糖、可滴定酸和Vc 含量。结果:超声处理能够抑制贮藏后期的鲜切马铃薯的总酚升高、有利于还原糖和Vc 的保留,而对蛋白质、 可滴定酸含量变化的作用效果不明显。其中,25 ℃下300 Hz超声处理8 min 的鲜切马铃薯效果较好。结论:超声处理能有效保持 鲜切马铃薯的营养成分。
英文摘要:
      Objective:In order to apply ultrasonic processing technology for fresh-cut potatoes, the changes of nutritional compositions of fresh-cut potatoes processed by different ultrasonic processing was investigated.Methods:the contents of total phenol, protein, reducing sugar, titratable acidity and vitamin C were analyzed using the relevant detection method.Results:Ultrasonic Processing could efficiently reduce the contents of total phenol, increasing the content reducing sugar, and vitamin C . Protein and titratable acidity were affected rarely. According to the results, the effects of ultrasonic processing on fresh-cut potato were slightly better under 300 Hz ultrasonic treatments which continued 8 min at 25 ℃ .Conclusion:Ultrasonic processing could efficiently keep the nutritional compositions of fresh-cut potatoes.
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