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Title: Pollen spectrum and physico-chemical attributes of heather (Erica sp.) honeys of north Portugal
Author: Pires, José
Estevinho, Leticia M.
Feás, Xesús
Cantalapiedra, Jesus
Iglesias, Antonio
Keywords: Honey
Physico-chemical analysis
Erica sp.
Issue Date: 2009
Publisher: Wiley
Citation: Pires, José; Estevinho, Leticia M.; Feás, Xesús; Cantalapiedra, Jesus; Iglesias, Antonio (2009) - Pollen spectrum and physico-chemical attributes of heather (Erica sp.) honeys of north Portugal. ISSN 0022-5142. Journal of the Science of Food and Agriculture. 89:11, p. 1862-1870
Abstract: Honey legislation has been addressed to establish the minimum marketing level of the product and the need for consumer protection through correct denominations. Research oriented toward assessment of floral origin and physicochemical properties may increase the commercial value of these products. The characteristics of 23 unifloral honeys of Erica sp., from Portugal, were studied. Pollen features and some physicochemical parameters (moisture, ash, pH, free acidity, electrical conductivity, hydroxymethylfurfural content, apparent sucrose, reducing sugars and diastase activity) were determined. RESULTS: All honey samples can be classified as monofloral Erica sp., they gave a mean value of 56% of Erica pollen type. The families Fabaceae and Rosaceae provided the greatest number of pollen types with 8 and 4 pollen types each respectively. The second most important pollen type is Eucalyptus, present in 69.6% of the samples. All honey samples met the international physicochemical quality standards. The present study found a linear correlation (R = 0.996) between the ash content of honeys and their specific conductivity. CONCLUSION: All honey samples can be classified as monofloral Erica sp. Unifloral honeys are increasingly requested and appreciated, despite their higher prices. The samples were found to meet allmajor international honey specifications.
Peer review: yes
ISSN: 0022-5142
Appears in Collections:BB - Artigos em Revistas Indexados ao ISI/Scopus

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