Macro-element ratios provide improved identification of the botanical origin of mono-floral honeys

Nikolett Czipa, Loránd Alexa, Clive J.C. Phillips, B. Kovács

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Major macronutrient concentrations (K, Ca, Mg, Na, P, and S) and element ratios were determined in 140 Hungarian mono-floral honey samples (acacia, linden, sunflower, rape, chestnut, forest, silk grass, and facelia) by inductively coupled plasma-optical emission spectrometry (ICP-OES). One-way ANOVA (LSD and Dunnett T3 test) and linear discriminant analysis (LDA) were used to determine the botanical origin based on the element content and element ratio of different honey types. Analysing six element concentrations in the honeys of different botanical origin with LDA allowed the botanical origin of 96% of honeys to be predicted. Reducing the examined elements to K, Mg, and Na increased the accuracy of predictions, but it was still not possible to distinguish acacia and facelia honeys. However, examination of element ratios showed that K/Na and K/Mg ratios were able to separate every honey type from each other with 100% cross-validation. It is concluded that using macro-element ratios rather than macro-element concentrations, it is possible to precisely discriminate the floral origin of honey samples.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalEuropean Food Research and Technology
DOIs
Publication statusAccepted/In press - Mar 21 2018

Fingerprint

Honey
Discriminant analysis
honey
Macros
Lysergic Acid Diethylamide
Silk
Inductively coupled plasma
Analysis of variance (ANOVA)
Spectrometry
Acacia
Discriminant Analysis
discriminant analysis
Tilia
Helianthus
atomic absorption spectrometry
Castanea
Poaceae
silk
Helianthus annuus
Spectrum Analysis

Keywords

  • Botanical origin
  • Element
  • Element ratio
  • Honey
  • ICP

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Chemistry(all)
  • Biochemistry
  • Industrial and Manufacturing Engineering

Cite this

Macro-element ratios provide improved identification of the botanical origin of mono-floral honeys. / Czipa, Nikolett; Alexa, Loránd; Phillips, Clive J.C.; Kovács, B.

In: European Food Research and Technology, 21.03.2018, p. 1-7.

Research output: Contribution to journalArticle

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