Physicochemical parameters, chemical composition, antioxidant capacity, microbial contamination and antimicrobial activity of <i>Eucalyptus</i> honey from the Andean region of Ecuador

Valdés-Silverio, Luis A; Iturralde, Gabriel; García-Tenesaca, Marilyn; Paredes-Moreta, Jonathan G.; Narváez-Narváez, David A.; Rojas-Carrillo, Maira; Tejera, Eduardo; Beltrán-Ayala, Pablo; Giampieri, Francesca; Álvarez-Suarez, José M.

doi:10.1080/00218839.2018.1426349

Cited by 39 publications

(19 citation statements)

References 52 publications

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“…(Soapbark) were predominant in honeys with darker tones; similar results have been reported in Quillaja Saponaria honey samples from Libertador Bernardo O'Higgins Region, which presented values closer to 80 mm in the Pfund scale [55]. In addition, authors such as [56] who analyzed monofloral Eucalyptus honey, have stated that extra light amber honeys predominate in this type of honeys. It was also possible to observe that honeys classified as amber contained the highest potassium concentrations (1829.3 ppm), which correlates with the data reported by [57] in honeys produced in Serbia, where honeys that presented darker shades had a higher potassium and magnesium content.…”

Section: Physicochemical Parameterssupporting

confidence: 79%

Mineral and Botanical Composition of Honey Produced in Chile’s Central-Southern Region

Lobos

Silva

Ulloa

et al. 2022

Foods

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The chemical composition and quality of honey depend on the floral and geographical origin, extraction techniques, and storage, resulting in a unique product for each area. Currently, consumers are not only concerned about the chemical composition, quality, and food safety of honey, but also about its origin. The objective of this study was to characterize honeys produced in Chile’s central-southern region from a mineral and botanical perspective, thus adding value through differentiation by origin. Two hundred honey samples were used and underwent analysis such as melissopalynological composition, nutritional composition, and color. Forty-seven melliferous floral species were identified, out of which 24 correspond to exotic species and 23 to native species. Fifty-six percent were classified as monofloral honeys, 2% as bifloral, and 42% as multifloral. Moisture mean values (17.88%), diastase activity (15.53 DN), hydroxymethylfurfural (2.58 mg/kg), protein (0.35%), and ash (0.25%) comply with the ranges established by both the national and the international legislation; standing out as honeys of great nutritional value, fresh, harvested under optimal maturity conditions, and absence fermentation. Regarding color, light amber was prevalent in most territories. The territory where honey was produced, denoted relevant differences in all the parameters studied.

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Section: Physicochemical Parameterssupporting

confidence: 79%

Mineral and Botanical Composition of Honey Produced in Chile’s Central-Southern Region

Lobos

Silva

Ulloa

et al. 2022

Foods

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“…Total flavonoid contents (TFC) greatly varied among the honeys. Although manuka honey contained a higher TFC (3.9 mg/100 g) than many natural honeys (0.47–3.61 and 2.0–5.4 mg/100 g honey) [ 40 , 52 ], its TFC was similar to guggul honey (4.1 mg/100 g) and much lower than that of arjuna and olive honeys (15.3 and 24.0 mg/100 g, respectively), whereas jiaogulan honey had the lowest TFC (2.1 mg/100 g). The results confirmed TPC and TFC of honeys vary and they are strongly determined by nectar sources.…”

Section: Resultsmentioning

confidence: 99%

Physicochemical Properties and Effects of Honeys on Key Biomarkers of Oxidative Stress and Cholesterol Homeostasis in HepG2 Cells

2021

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Manuka honey and newly developed honeys (arjuna, guggul, jiaogulan and olive) were examined for their physicochemical, biochemical properties and effects on oxidative stress and cholesterol homeostasis in fatty acid-induced HepG2 cells. The honeys exhibited standard moisture content (<20%), electrical conductivity (<0.8 mS/cm), acidic pH, and monosaccharides (>60%), except olive honey (<60% total monosaccharides). They all expressed non-Newtonian behavior and 05 typical regions of the FTIR spectra as those of natural ones. Guggul and arjuna, manuka honeys showed the highest phenolic contents, correlating with their significant antioxidant activities. Arjuna, guggul and manuka honeys demonstrated the agreement of total cholesterol reduction and the transcriptional levels of AMPK, SREBP2, HCMGR, LDLR, LXRα. Jiaogulan honey showed the least antioxidant content and activity, but it was the most cytotoxic. Both jiaogulan and olive honeys modulated the tested gene in the pattern that should lead to a lower TC content, but this reduction did not occur after 24 h. All 2% concentrations of tested honeys elicited a clearer effect on NQO1 gene expression. In conclusion, the new honeys complied with international norms for natural honeys and we provide partial evidence for the protective effects of manuka, arjuna and guggul honeys amongst the tested ones on key biomarkers of oxidative stress and cholesterol homeostasis, pending further studies to better understand their modes of action.

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“…Th e water content in honey aff ects physical, microbiological, sensory properties, and commercial value of honey. Honey contains concentrated water solution of two main sugars: fructose and glucose, with small amounts of various complex sugars (Escuredo et al, 2014;Valdés-Silverio et al, 2018). Important aspect of carbohydrate composition in honey is crystallization ability.…”

Section: Resultsmentioning

confidence: 99%

Comparative Study of Water Content in Honey Produced in Different Years

Baloš¹,

Jakšić²,

Popov³

et al. 2019

AVM

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One hundred thirty-three honey samples of different floral origin from two different production years (2017 and 2018) from Serbia were examined in order to determine water content. The water content in honey affects physical, microbiological, sensory properties, and commercial value of honey. The water content in all examined honey samples produced in 2017 (56) was below maximum permissible level set by local regulations for honey. Out of the total of 77 tested honey samples that were produced in 2018, 3 samples (3.9%) did not comply with the provisions of the Regulation. By analysing honey samples originating from 2017, there was a significant difference between the water contents betwen linden honey and honeydew (p = 0.0027). The same result was obtained based on the water content in different honey types from the year 2018 (p = 0.00022). Using the F test, it has been shown that there is no significant difference in the water content between certain types of honey produced in these two years ( 2017 and 2018).

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Physicochemical parameters, chemical composition, antioxidant capacity, microbial contamination and antimicrobial activity of Eucalyptus honey from the Andean region of Ecuador

Cited by 39 publications

References 52 publications

Mineral and Botanical Composition of Honey Produced in Chile’s Central-Southern Region

Mineral and Botanical Composition of Honey Produced in Chile’s Central-Southern Region

Physicochemical Properties and Effects of Honeys on Key Biomarkers of Oxidative Stress and Cholesterol Homeostasis in HepG2 Cells

Comparative Study of Water Content in Honey Produced in Different Years

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