FOOD SCIENCE ›› 2014, Vol. 35 ›› Issue (4): 248-252.doi: 10.7506/spkx1002-6630-201404050

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Tracing the Geographical Origin of Grapefruit

YAN Jing 1, TANG Cheng2, LIANG Ya-xiong2, GUO Rui-feng2, XIONG Ya-bo1, YE Fu-rao1, LIU Ji1, QIN Wen1,*   

  1. 1. College of Food Science, Sichuan Agricultural University, Ya’an 625014, China;
    2. Sichuan Guang’an City Quality and Technical Supervision and Testing Center, Guang’an 638000, China
  • Received:2013-05-23 Revised:2014-01-10 Online:2014-02-25 Published:2014-03-17
  • Contact: qin wen E-mail:qinwen1967@yahoo.com

Abstract:

The aims of this study were to develop a method to study the general quality characteristics of different varieties
of grapefruit and to identify the geographical origin of grapefruit using sensory analysis, chemical analysis and elemental
fingerprint analysis. The results indicated that there were significant differences in percent edibility, fruit diameter, acidity
and the contents of vitamin C, reducing sugar and flavonoids among different varieties of grapefruit (P < 0.05). The ratio
of edible portion and vitamin C could be used to approximately predict the geographical origin of grapefruit. Element
concentrations were determined and statistically analyzed using principal component analysis (PCA). As a result, Ca, Fe,
Na, Cr, Mg, Zn and Mn were able to be used to distinguish different origins of grapefruit. It can be concluded that analyses
of the basic indicators in combination with elemental fingerprint analysis method can be used to successfully determine the
geographical origin of grapefruit with high reliability and good prospect.

Key words: grapefruit, origin, traceable

CLC Number: