Diastatic activity in some unifloral honeys

Oddo, Livia Persano; Baldi, E.; Accorti, M.

doi:10.1051/apido:19900103

Cited by 40 publications

(18 citation statements)

References 12 publications

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“…In honey, HMF content is related to its quality and heat processing. Furthermore diastase activity has been related to the origin of the samples 36, 37. No sample exceeded the limits established for these variables.…”

Section: Resultsmentioning

confidence: 96%

Pollen spectrum and physico‐chemical attributes of heather (Erica sp.) honeys of north Portugal

et al. 2009

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BACKGROUND: 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.

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Section: Resultsmentioning

confidence: 96%

Pollen spectrum and physico‐chemical attributes of heather (Erica sp.) honeys of north Portugal

et al. 2009

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“…The mean invertase content was 18.0 ± 5.8 IN. Persano‐Oddo et al. (1990), in a study of diastase activity in major Italian unifloral honey, reported low diastase activity in Arbutus honey, intermediate activity in Rhododendron and Helianthus honey, and higher activity in Hedysarum , Castanea and Eucalyptus honey.…”

Section: Resultsmentioning

confidence: 97%

Descriptive analysis of Rubus honey from the north-west of Spain

Escuredo¹,

Seijo

Fernández-González

2011

International Journal of Food Science &Amp; Technology

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A study of Rubus honey was conducted to determine their sugar composition, physicochemical properties, phenol and flavonoid contents, and sensorial and pollen characteristics. The principal pollen types present in the studied samples were Rubus, Castanea and Cytisus. Other pollen types such as Trifolium, some Erica sp., Eucalyptus or Echium were present in more than 50% of the pollen spectra. The sensorial characteristics of Rubus honey were amber-to-amber dark in colour, floral and ⁄ or vegetal olfactory perceptions with mediumto-low intensity and persistence, medium floral aftertaste and a fruity aroma. Physicochemical analysis showed that the honey had good quality and freshness. Phenol and flavonoid contents varied greatly and were related to the mineral content and colour of the honey. A stepwise regression analysis was performed using colour as the dependent variable, and flavonoid, electrical conductivity, and Rubus pollen as the independent variables.

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“…The invertase, being more susceptible to damage by storage and heat, is used in some countries as an indicator for honey virginity and freshness; i.e., fresh and virgin honeys are supposed to have at least 10 Hardon invertase units or 64 international units, while honeys with low enzyme activity should have at least 4 units [21]. However, the diastase and invertase activities in honey vary in wide limits depending on botanical origin of honey [37,38] and thus, have a limited freshness indicating power; HMF is regarded as better quality criterion in this respect. [25,26] and for Acacia honey [39].…”

Section: Discussionmentioning

confidence: 99%

Physicochemical and Microbiological Properties of Honey from North East Nigeria

Buba¹

2013

Biochem Anal Biochem

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Honey is used for nutritional, medicinal and industrial purposes and it is an important commodity in the international market. Honey production has the potential to become a major foreign exchange earner for Nigeria if qualities of the products are able to meet international standards. Commercial beekeeping practice has been known to exist in the north east sub-region of Nigeria for a long time but scientific information about the qualities of the products is scare. Therefore, some physicochemical parameters (including pH, electrical conductivity, acidities, and hydroxymethylfurfural and diastase activities) of eighteen honey samples obtained from different locations in the six States comprising the northeast sub-region of Nigeria were investigated to evaluate their quality and compliance with international regulatory standards. The pH and Electrical Conductivity (EC) values ranged from 3.5 to 4.9 and 0.05 to 0.41 with mean values of 4.9 ± 0.41 and 0.15 ± 0.09, respectively. The free, lactone and total acidities of the samples varied from 13.0 to 33.6 meq/kg; 1.16 to 4.63 meq/kg and 14.25 to 36.67 meq/kg with average values of 23.00 ± 6.20 meq/kg; 2.28 ± 0.89 meq/kg and 25.17 ± 6.86 meq/kg, respectively. Hydroxymethylfurfural (HMF) contents and diastase activities varied from 5.99 to 17.22 mg/kg and 8.00 to 13.00 (Schades units) with mean values of 11.73 ± 3.97 mq/kg and 9.37 ± 1.38 (Schades units), respectively. Significant differences (P<0.05) were observed in free acidities and HMF contents of samples from the different States in the sub-region. The results are comparable with reports from many parts of the world and are also within the limits of international standards. However, most of the samples showed bacterial and mould growth, suggesting poor sanitary procedure during harvest or storage.

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Diastatic activity in some unifloral honeys

Cited by 40 publications

References 12 publications

Pollen spectrum and physico‐chemical attributes of heather (Erica sp.) honeys of north Portugal

Pollen spectrum and physico‐chemical attributes of heather (Erica sp.) honeys of north Portugal

Descriptive analysis of Rubus honey from the north-west of Spain

Physicochemical and Microbiological Properties of Honey from North East Nigeria

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