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Progress in Analytical Techniques for Added Sugar in Fruit Juice

TANG Cui-e, ZHANG Li, LI Tao, LIU Rui   

  1. 1. Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 2. Hubei Research Institute of Products Quality Supervision and Inspection,Wuhan 430061, China
  • Online:2014-05-15 Published:2014-05-19

Abstract:

Detection techniques for added sugar in fruit juice play a very important role in distinguishing adulterated
samples from natural fruit juice, and their potential applications assume critical importance for guaranteeing the quality
and safety of fruit juice products. This article reviews the current status and recent advances in analytical techniques for
added sugar in fruit juice such as infrared (IR) spectroscopy, stable isotopic analysis, nuclear magnetic resonance (NMR)
and chromatography. Some advantages and disadvantages of these techniques are discussed. This paper hopefully provides
theoretical basis for identifying adulterated fruit juice.

 

Key words: fruit juice, added sugar, infrared (IR) spectroscopy, stable isotopic analysis, nuclear magnetic resonance (NMR);chromatography