Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 63, Issue 22, Pages 5388-5394Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.5b01576
Keywords
honey; chemometric techniques; floral origins; IRMS; ICP-MS
Funding
- Chinese Program of International ST Cooperation [2012DFA31140]
- International Atomic Energy Agency's Coordinated Research Project (CRP) [16567]
- Chinese Agro-Scientific Research in the Public Interest [201203046]
- Agricultural Science and Technology Innovation Program [CAAS-ASTIP-2015-IAR]
- Shenzhen Commission on Science and Innovation [CXZZ20120831160213590]
- Shenzhen Key Laboratory for Coastal Ocean Dynamics and Environment [ZDSY20130402163735964]
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The objective of this study is to test the feasibility of multi-isotopic and elemental analyses combined with chemometric techniques for differentiating the botanical origins of major honey products in China. The stable isotope and elemental compositions of 57 honey samples from four major floral origins in China (i.e., rape honey, acacia honey, vitex honey, and jujube honey) were analyzed using stable isotope ratio mass spectrometry (IRMS) and inductively coupled plasma mass spectrometry (ICP-MS), respectively. The results showed that hydrogen and oxygen isotopes could be more suitable than the carbon isotope for discriminating the floral origins of major honeys in China. There were significant differences in the contents of most elements between or among different floral origins. The combination of IRMS and ICP-MS methods provides the most effective and accurate approach (in most cases close to 100% accuracy) for classifying Chinese honeys according to their floral origins.
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