Comparison of Methods for Determining Moisture Content of Citrus and Eucalyptus Brazilian Honeys by Refractometry

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

doi:10.1006/jfca.2000.0951

Cited by 28 publications

(27 citation statements)

References 16 publications

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“…Therefore, a considerable percentage of these honey samples does not comply with the quality regulations for Brazilian honey 12 , a fact also observed by Cano et al 6 in honey samples consumed in São Paulo, SP, Brazil, and by Cano et al 8 in Brazilian honey samples from eucalyptus and orange flowers, with average moisture contents near those obtained by Cortopassi-Laurino 5 , Costa et al 7 , and those in the present work. The explanation for the high water content found in this experiment, especially in eucalyptus honey samples, could be that the honey was harvested from uncapped frames, in addition to the storage period; thus, the honey may have absorbed moisture from the environment.…”

Section: Physicochemical Analysessupporting

confidence: 71%

“…This allowed the formation of distinct groups or sub-groups when sample composition was studied by cluster analysis in samples from the State of Tocantins 4 , in Brazil. Several papers conducted using eucalyptus and citrus honey samples from different Brazilian regions make reference to the physicochemical composition of the samples, by analyzing moisture, electric conductivity, protein, ash content, pH, acidity, formaldehyde index, diastatic activity, HMF, total sugars, reducing sugars, apparent sucrose, and viscosity [5][6][7][8][9] . This research, developed with Apis mellifera honey samples from various municipalities in the State of São Paulo, Brazil, aimed to verify how eucalyptus, wild, and orange honey samples would be clustered, based on their physicochemical characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical composition of Apis mellifera honey samples from São Paulo State, Brazil

Marchini¹,

Moreti²,

Otsuk³

et al. 2007

Quím. Nova

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Recebido em 28/9/06; aceito em 23/3/07; publicado na web em 6/8/07This research, developed with Apis mellifera honey samples from producers of São Paulo State, Brazil, has the objective of verifying how eucalyptus, wild flower, and orange honey samples would be clustered, based on physicochemical characteristics. All the orange honey samples and some wild flower ones formed distinct groups, thus confirming that the floral source interferes with honey characteristics. Eucalyptus and some of the wild flower honey samples were clustered together because of the great floral source variation in the latter ones. The characteristics that influence sample clustering are acidity and electric conductivity on the X axis, and total sugars and pH on the Y axis.

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Section: Physicochemical Analysessupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Physicochemical composition of Apis mellifera honey samples from São Paulo State, Brazil

Marchini¹,

Moreti²,

Otsuk³

et al. 2007

Quím. Nova

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“…Vários parâmetros físico-químicos, como umidade, HMF, açúcares, índice diastásico, condutividade elétrica, viscosidade, proteínas, índice de formol, cinzas, pH, acidez, entre outros, vêm sendo estudados por Almeida-Anacleto & Marchini (2004), Araújo et al (2006), Arruda et al (2005), Azeredo & Azeredo (1999), Cano et al (1992Cano et al ( , 2001), Costa et al (1999), Evangelista-Rodrigues et al (2005), Marchini et al (2004aMarchini et al ( ,b, 2005, Silva et al (2004), Sodré et al (2003Sodré et al ( , 2005 e Vieira et al (2005), entre outros, com o objetivo de caracterizar o produto brasileiro o que é uma tarefa bastante difícil exatamente pela diversidade dos méis produzidos em diferentes regiões do Brasil.…”

Section: (Recebido Em 11de Junho De 2007 E Aprovado Em 20 De Fevereirunclassified

Características físico-químicas de amostras de méis de Apis mellifera L. do estado do Ceará, Brasil

Moreti¹,

Sodré

Marchini

et al. 2009

Ciênc. agrotec.

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RESUMOObjetivou-se, na presente pesquisa, desenvolvida com amostras de méis de Apis mellifera coletadas diretamente dos produtores de diversos municípios do estado de Ceará, Brasil, verificar, com base em características físico-químicas, como se agrupam as amostras de méis. Dentre as 52 amostras de méis analisadas as que continham pólen de Serjania sp. como dominante ou acessório, formam um subgrupo distinto quanto aos caracteres físico-químicos, o que confirma que a origem floral interfere decisivamente nas características dos méis. Pela análise dos componentes principais, pôde-se verificar que os caracteres que mais influenciaram no agrupamento das amostras de méis foram acidez e índice de formol no eixo X e pH e cinzas no eixo Y. Termos para indexação:Análise físico-química, tipo polínico, origem floral, legislação brasileira. ABSTRACTThis paper was carried out to determine how the honey samples of the State of Ceará, Brazil may be grouped, based on the physicochemical composition of the honey. The samples were collected in different municipalities. Among the 52 honey samples analyzed it was observed that the samples which have Sejania sp. as dominant or accessory pollen form a different sub-group based on the physicochemical parameters. The results confirm that the honey bee composition is influenced by the plant nectar. The grouping of the honey samples was mostly influenced by acidity and formol index on the X axis, and pH and ashes, on the Y axis.

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“…The vitamins found in honey may include (depending on floral variety) niacin, riboflavin and pantothenic acid; minerals present include calcium, copper, iron, magnesium, manganese, phosphorus, potassium and zinc. [2][3][4][5][6] Just as the color and flavor of honey varies by floral source, so do the vitamin, mineral, antioxidant and amino acid contents. 7 Thus, honey is used in traditional folk medicine and apitherapy and is an excellent natural preservative.…”

Section: Introductionmentioning

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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Comparison of Methods for Determining Moisture Content of Citrus and Eucalyptus Brazilian Honeys by Refractometry

Cited by 28 publications

References 16 publications

Physicochemical composition of Apis mellifera honey samples from São Paulo State, Brazil

Physicochemical composition of Apis mellifera honey samples from São Paulo State, Brazil

Características físico-químicas de amostras de méis de Apis mellifera L. do estado do Ceará, Brasil

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

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