Characterization and classification of commercial thyme honeys produced in specific Mediterranean countries according to geographical origin, using physicochemical parameter values and mineral content in combination with chemometrics

Karabagias, Ioannis K.; Louppis, Artemis P.; Karabournioti, Sofia; Kontakos, Stavros; Papastephanou, Chara; Kontominas, Michael G.

doi:10.1007/s00217-016-2803-0

Cited by 26 publications

(30 citation statements)

References 34 publications

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“…This may be due to the intervention of the botanic origin, as it is well documented to be also crucial in determining the mineral profile of honey samples (Karabagias et al., 2017). However, the discrimination of samples using the mineral profile, the ash content and the electrical conductivity was clearer than in the case of the parameters used in Figure 1a.…”

Section: Resultsmentioning

confidence: 99%

Physicochemical characterization and antioxidant activity of Palestinian honey samples

Imtara

Elamine

Lyoussi

2018

Food Science & Nutrition

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Physicochemical characteristics, main minerals, and antioxidant activity were determined for Palestinian honey samples belonging to different floral and geographical origins. The features of the analyzed samples were within the established international standards for honey quality control. One clear exception was the hydroxymethylfurfural (HMF) of the Ziziphus sample purchased from the Jericho region, which is the lowest city in the word characterized by a hot desert climate. The observed HMF value was 81.86 ± 2.64 mg/kg being two folds the maximum allowed in honey samples (40 mg/kg). As a second objective of the present work, the parameters were divided into two groups with different discriminatory power. The assessed physicochemical parameters, and the antioxidant activities, specific to the botanical origin discrimination, were used to run the first PCA. A strong correlation could be seen between the bioactive compounds and the antioxidant activities despite the geographical origin of the samples. Thyme and Ziziphus samples were the best samples, while citrus sample presented the lowest activity. Regarding the geographical discrimination, Ash and mineral contents in addition to the electrical conductivity were used. The output PCA conserved high represent ability of the data in the two‐first components being 82.72% and 9.60%. A little discrimination between the samples produced in the north and those produced in the south of the country, but it was not perfect. The intervention of the botanical variability could be the reason.

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Section: Resultsmentioning

confidence: 99%

Physicochemical characterization and antioxidant activity of Palestinian honey samples

Imtara

Elamine

Lyoussi

2018

Food Science & Nutrition

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“…These techniques were previously applied on the analysis of several food products, among which coffee (Briandet, Kemsley, & Wilson, 1996) and amino acids content in honey (Zhao et al, 2018). Honey does not make an exception; indeed the chemometric tools were not only used as a discriminatory tool between honeys with different geographical (Estevinho, Chambó, Pereira, Carvalho, Alencar, 2016;Karabagias et al, 2017aKarabagias et al, , 2017b or botanical origins (Corbella & Cozzolino, 2006;Devillers, Morlot, Pham-Delègue, & Doré, 2004;Terrab, Díez, & Heridia, 2002) but also as an effective way to detect honeys' adulteration (Wang et al, 2014). Several tools can be employed depending on the study aim, implicating the filtration of the parameters.…”

Section: Introductionmentioning

confidence: 99%

Zantaz honey “monoflorality”: Chemometric applied to the routinely assessed parameters

Elamine

Lyoussi

Anjos

et al. 2019

LWT

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A B S T R A C TThe comparison of Zantaz honey samples harvested in Morocco in two different years was performed through chemometric analysis of routinely assessed parameters. The objective was to study how the pollen profile of this newly reported honey shapes its physicochemical characteristics as well as to determine its monoflorality threshold, which has not yet been defined. The predominance of B. spinosum pollen was confirmed in the majority of samples reaching 45%, generally requested for monoflorality declaration. The principal component analysis (PCA) was used for clustering and variables correlations. Pollen qualitative and quantitative differences could discriminate the samples belonging to both seasons when combined with the sugar analysis (59.44%) better than the combination with physicochemical parameters (pH, acidity, ash content, electrical conductivity and color) (60.62%). Positive correlation between the presence of B. spinosum pollen and melanoidins, color, fructose, moisture, trehalose, melezitose, iron, manganese and calcium could be seen. Integrating all the parameters except the pollen data allowed distinguishing two groups with significant differences (P < 0.05) in B. spinosum representability (58 ± 11.24% against 40 ± 15.98%). This may suggest that 40% is the monoflorality threshold of the Moroccan Zantaz honey, although a confirmation with sensorial analysis is required.

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“…In addition, there have been many reports on using mineral element analysis to identify the origin of food and plants. [11][12][13][14][15] The mineral and trace elemental composition of crops reflects the cultivar and soil conditions where crops grows. [16,17] Stable isotope analysis has been used to trace the origin of cereal grains, such as rice, wheat, soybean and so on.…”

Section: Introductionmentioning

confidence: 99%

Geographical origin traceability of foxtail millet based on the combination of multi-element and chemical composition analysis

Liu¹,

Liang

Lu³

et al. 2018

International Journal of Food Properties

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Characterization and classification of commercial thyme honeys produced in specific Mediterranean countries according to geographical origin, using physicochemical parameter values and mineral content in combination with chemometrics

Cited by 26 publications

References 34 publications

Physicochemical characterization and antioxidant activity of Palestinian honey samples

Physicochemical characterization and antioxidant activity of Palestinian honey samples

Zantaz honey “monoflorality”: Chemometric applied to the routinely assessed parameters

Geographical origin traceability of foxtail millet based on the combination of multi-element and chemical composition analysis

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