The rapid detection of acacia honey adulteration by alternating current impedance spectroscopy combined with 1H NMR profile

Hao, Shengyu; Yuan, Jie; Cui, Jichun; Yuan, Wenqin; Zhang, Haiwa; Han, Xuan

doi:10.1016/j.lwt.2022.113377

Cited by 10 publications

(5 citation statements)

References 26 publications

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“…Honey is mostly composed of water and simple sugars, such as fructose and glucose, although it contains proteins, vitamins, minerals, and many other substances in small amounts [ 31 , 35 ]. The heterogeneity of acacia honey structure enabled different sets of complex chemical reactions when it reached contact with a suitable medium.…”

Section: Resultsmentioning

confidence: 99%

Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey

et al. 2023

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High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.

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Section: Resultsmentioning

confidence: 99%

Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey

et al. 2023

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“…This method is based on detecting change in impedance of a sample during stimulation which is called electrochemical impedance analysis. Hao et al (2022) identified acacia honey adulteration by measuring the differences in AC impedance spectroscopy and metabolite analysis with 1H NMR spectroscopy. The combination of AC impedance and 1H NMR spectroscopy is a beneficial quality-control tool for identification of authenticity in honey (Hao et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Characterization of Turkish Pine Honey and Differentiation from Floral Honeys by NMR Spectroscopy and Chemometric Analysis

Kahraman,

Göcenler,

Dağ

2023

Preprint

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Honey is a viscous, supersaturated sugar solution produced by bees through the enzymatic transformation of nectar from flowers, containing a complex mixture of carbohydrates, organic acids, enzymes, and other minor constituents. Although honey has been used for thousands of years for its nutritional and medicinal properties, it has been the subject of increasing attention in recent years due to increasing adulterated honey production. Consequently, assessment of honey quality and authenticity has become essential to ensure consumer confidence of regional honey and to perverse the practice of authentic honey production. In this study, we employed nuclear magnetic resonance (NMR) spectroscopy and chemometric analysis to characterize Turkish Pine honey and compare it to flower honey originating from the Oceania, Aegean, and West Coast of North America regions. Utilizing 1H NMR spectroscopy, the chemical profile of Turkish Pine honey was characterized, and unique peaks were found. Additionally, PLS-DA statistical analysis was employed to further investigate the distinction of Turkish Pine honey among other floral and regional honeys. Upon completion of our statistical analysis, we were able to effectively distinguish Turkish Pine honey from other regional honey types, allowing us to formulate a universal test for authenticity of Turkish Pine Honey.

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“…Borawska et al also studied the sugar content in different varieties of Polish honeys, and in the case of rape honey ( n = 5), the average glucose concentration of 39.5 ± 2 g/100 g was observed, while the fructose content was 38.2 ± 1 g/100 g [ 30 ]. Hao et al also reported that acacia honeys were characterized by Glc and Fru contents at levels of 27.2 ± 2.6 and 39.4 ± 1.3 g/100 g, respectively [ 31 ]. Those values are in accordance with our own results.…”

Section: Resultsmentioning

confidence: 99%

Classification of Polish Natural Bee Honeys Based on Their Chemical Composition

et al. 2022

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The targeted quantitative NMR (qNMR) approach is a powerful analytical tool, which can be applied to classify and/or determine the authenticity of honey samples. In our study, this technique was used to determine the chemical profiles of different types of Polish honey samples, featured by variable contents of main sugars, free amino acids, and 5-(hydroxymethyl)furfural. One-way analysis of variance (ANOVA) was performed on concentrations of selected compounds to determine significant differences in their levels between all types of honey. For pattern recognition, principal component analysis (PCA) was conducted and good separations between all honey samples were obtained. The results of present studies allow the differentiation of honey samples based on the content of sucrose, glucose, and fructose, as well as amino acids such as tyrosine, phenylalanine, proline, and alanine. Our results indicated that the combination of qNMR with chemometric analysis may serve as a supplementary tool in specifying honeys.

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The rapid detection of acacia honey adulteration by alternating current impedance spectroscopy combined with 1H NMR profile

Cited by 10 publications

References 26 publications

Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey

Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey

Characterization of Turkish Pine Honey and Differentiation from Floral Honeys by NMR Spectroscopy and Chemometric Analysis

Classification of Polish Natural Bee Honeys Based on Their Chemical Composition

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