Characterization of monofloral honeys by ash contents through a hierarchical design

Felsner, Maria Lurdes; Cano, Cristiane Bonaldi; Bruns, Roy E.; Watanabe, Hiroko; Almeida-Muradian, Lígia Bicudo de; Matos, Jivaldo do Rosário

doi:10.1016/j.jfca.2003.11.001

Cited by 34 publications

(26 citation statements)

References 22 publications

(24 reference statements)

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“…3. The relation between EC and ash content has been demonstrated by many researchers who agree that the abovementioned parameters are related (Felsner et al, 2004;Kropf et al, 2008). A model (y = 1.74x + 0.14) has been proposed for use all over Europe by the International Honey Commission (IHC) (Bogdanov et al, 1997).…”

Section: Physico-chemical Parametersmentioning

confidence: 90%

Characterization of artisanal honey produced on the Northwest of Portugal by melissopalynological and physico-chemical data

Feás

Pires

Iglesias

et al. 2010

Food and Chemical Toxicology

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a b s t r a c tHoney has always been regarded as a food which is advantageous for one's health and as a product which has healing qualities. For this reason, is necessary to protect consumers from the fraudulent mislabeling of inferior honeys. The purpose of this study was to investigate some properties of artisanal honey samples (n = 45) collected from the Northwest of Portugal by using different honey analysis tests such as moisture, ash, pH, free acidity, electrical conductivity, hydroxymethylfurfural (HMF), apparent sucrose, reducing sugars and diastase activity. 77.8% of the total exceeded the quality parameters and should be labeled as ''virgin" (humidity 618% and HMF 6 25 mg/kg). The present study found a linear correlation (y = 0.551x À 0.089; R = 0.995) between the electrical conductivity of honeys and their ash content. All of the samples showed an Erica sp. pollen percentage P15%, and 42% of the total were monofloral Erica sp. In respect to coliforms and Salmonella's presence, all the honey's samples shown to be negative. The existence of sulphite-reducing Clostridia was low, and well below the established limit by MERCOSUR. Yeasts, moulds and aerobic mesophiles were detected in low amounts.

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Section: Physico-chemical Parametersmentioning

confidence: 90%

Characterization of artisanal honey produced on the Northwest of Portugal by melissopalynological and physico-chemical data

Feás

Pires

Iglesias

et al. 2010

Food and Chemical Toxicology

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“…15,16 Therefore, in recent years, several efforts have been made to authenticate the origin of honey by means of chemometric analysis, with different chemical and physical parameters, and multivariate analysis has proven to be a powerful tool for determining the geographical origin for honey. [17][18][19][20] In Brazil, especially in the Bahia State, many types of farmhouse honey are produced. Bahia honey varieties span a wide range of originating flora and microclimatic and atmospheric conditions.…”

mentioning

confidence: 99%

Honey classification from semi-arid, Atlantic and transitional forest zones in Bahia, Brazil

Santos¹,

Santos²,

Santos³

et al. 2008

J. Braz. Chem. Soc.

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Neste trabalho, amostras de mel produzidas em três diferentes regiões climáticas do Sudoeste da Bahia, Brasil (semi-árido, Mata Atlântica e Zona de Transição Climática) foram caracterizadas com base nos teores de minerais, elementos traços, cinzas e condutividade elétrica. Os metais foram determinados por espectrometria de absorção atômica. Com a finalidade de avaliar as variáveis químicas capazes de promover uma caracterização do mel produzido em cada região, as técnicas de cluster e componentes principais (ACP) foram aplicadas nos resultados das análises. Com base nas análises de cluster e ACP, foi possível distinguir os diferentes grupos de amostras correspondentes às três origens geográficas dos méis. A elevada correlação observada entre a condutividade elétrica e Cu nas amostras das zonas de transição climática, sugere que essas variáveis estão associadas, e esse fato pode ser atribuído ao uso de cobre na cafeicultura que é a principal atividade agrícola desenvolvida nessa região.In this study, samples of honey produced in three different regional climates in the southwest Bahia, Brazil (semi-arid, Atlantic and Transitional Forest Zones) were characterized on the basis of their mineral and trace elements, ash content and electrical conductivity. The metals were determined by atomic absorption spectrophotometry. The cluster and principal component analysis (PCA) methods were applied to the chemical concentration data in order to study the chemistry variables capable of promoting a characterization of the honey produced in each area. Cluster analysis and PCA distinguishes the different groups of honey samples corresponding to each region of the three geographical origins. The high correlation between electrical conductivity and Cu observed in honey samples from transitional forest zones suggested a coupling to the nutrient cycle, and can be attributed to use of copper compounds in coffee production, a major activity developed in all transitional forest zones.

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“…The ash content in honey is generally small and depends on nectar composition of predominant plants in their formation [8]. As such, the variability in ash contents has been associated in a qualitative way with different botanical and geographical origins of honeys [19]. The total content of elements or ash must be lower than 0.6% for nectar honey and lower than 1.0% for honeydew honey [20,21].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical analysis of Tigray honey: An attempt to determine major quality markers of honey

Nigussie¹,

Subramanian²,

Mebrahtu³

2012

Bull. Chem. Soc. Eth.

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ABSTRACT. The objective of this study was to assess quality of Tigray honey and content of selected metals (Cu, Co, Cr, Ni, Fe, Zn, Cd, Mn). Thirty honey samples from various areas of Tigray Region, Ethiopia were collected and analyzed for major quality parameters (pH, electrical conductivity, moisture content, ash content and levels of selected metals). Moisture content had a value of 18.6 (minimum) and 18.8 (maximum) indicating optimum harvesting and good degree of maturity. All honeys analyzed in this work had ash contents less than 0.6%, indicating that they were more likely to be floral than honeydew origin. Electrical conductivity varies from 8.27 ± 0.02 µS/cm (Hawzene) to 33.5 ± 0.2 µS/cm (Abiy Adi). Values recorded for honey pH ranged from 3.82 ± 0.01 (Hawzen) and 4.45 ± 0.01 (Abiy Adi). In general the Tigray honey shows relatively acidic behavior which is similar to other honeys in the world. The concentration of trace metals in honey was more or less different depending on the sampling area. The highest concentration was observed for iron, copper, nickel, manganese, zinc, chromium, cobalt and cadmium in that order. The highest concentration of metals was observed in Adigrat honey and then Hagereselam, Abiy Adi, Hawezene and the least for Atsbi.

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Characterization of monofloral honeys by ash contents through a hierarchical design

Cited by 34 publications

References 22 publications

Characterization of artisanal honey produced on the Northwest of Portugal by melissopalynological and physico-chemical data

Characterization of artisanal honey produced on the Northwest of Portugal by melissopalynological and physico-chemical data

Honey classification from semi-arid, Atlantic and transitional forest zones in Bahia, Brazil

Physicochemical analysis of Tigray honey: An attempt to determine major quality markers of honey

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