Antioxidant activity, quality parameters and mineral content of Portuguese monofloral honeys

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Abstract

Physicochemical properties (pH, free, lactonic and total acidity, electrical conductivity and moisture), main mineral content (potassium, sodium, calcium, magnesium and iron) and antioxidant activity (total phenolics, 1,1diphenyl-2-picrylhydrazyl radical scavenging and ferric reduction antioxidant power) were determined for 39 Portuguese monofloral honeys (rosemary, orange, thyme, arbutus, locust podshrub and heather) with different geographical origins. Portuguese honeys showed good chemical and nutritional qualities fulfilling the criteria described in Directive 2001/110/CE. Potassium was the main mineral component representing 85% of total minerals. The mineral composition of sodium (4.63–200.60mg/kg), calcium (0.43–72.30mg/kg), magnesium (3.05–82.20mg/kg) and iron (below 7.06mg/kg) were higher for heather, eucalypt and arbutus honeys. Monofloral honeys of arbutus (Arbutus unedo), locust podshrub (Ceratonia siliquaL.) and heather (Erica umbellata) showed higher antioxidant activity with phenolic contents higher than 600mg gallic acid equivalents (GAE)/kg, a DPPH scavenging activity higher than 50% and a ferric reduction antioxidant power above 600μM Fe2+. Furthermore, the chemometric analysis revealed that total phenolic content was a crucial variable explaining the antioxidant activity of arbutus and locust podshrub honeys characteristic of the south of Portugal.
Original languageUnknown
Pages (from-to)130-138
JournalJournal of Food Composition and Analysis
Volume30
Issue number2
DOIs
Publication statusPublished - 1 Jan 2013

Cite this

@article{d4daa2e22075442bb45b22721ac2c4c7,
title = "Antioxidant activity, quality parameters and mineral content of Portuguese monofloral honeys",
abstract = "Physicochemical properties (pH, free, lactonic and total acidity, electrical conductivity and moisture), main mineral content (potassium, sodium, calcium, magnesium and iron) and antioxidant activity (total phenolics, 1,1diphenyl-2-picrylhydrazyl radical scavenging and ferric reduction antioxidant power) were determined for 39 Portuguese monofloral honeys (rosemary, orange, thyme, arbutus, locust podshrub and heather) with different geographical origins. Portuguese honeys showed good chemical and nutritional qualities fulfilling the criteria described in Directive 2001/110/CE. Potassium was the main mineral component representing 85{\%} of total minerals. The mineral composition of sodium (4.63–200.60mg/kg), calcium (0.43–72.30mg/kg), magnesium (3.05–82.20mg/kg) and iron (below 7.06mg/kg) were higher for heather, eucalypt and arbutus honeys. Monofloral honeys of arbutus (Arbutus unedo), locust podshrub (Ceratonia siliquaL.) and heather (Erica umbellata) showed higher antioxidant activity with phenolic contents higher than 600mg gallic acid equivalents (GAE)/kg, a DPPH scavenging activity higher than 50{\%} and a ferric reduction antioxidant power above 600μM Fe2+. Furthermore, the chemometric analysis revealed that total phenolic content was a crucial variable explaining the antioxidant activity of arbutus and locust podshrub honeys characteristic of the south of Portugal.",
keywords = "Ceratonia siliqua L., Quality parameters, Main mineral content, Food composition, Food safety, Thymus spp., Monofloral honey, Antioxidant activity, Adulteration, Arbutus unedo, Food analysis",
author = "Gon{\cc}alves, {Maria Margarida Boavida Pontes} and Mendes, {Benilde Sim{\~o}es}",
note = "http://www.sciencedirect.com/science/article/pii/S0889157513000410 http://www.deepdyve.com/lp/elsevier/antioxidant-activity-quality-parameters-and-mineral-content-of-6IbjJF02kU Salima Rehemtula: Sem PDF.",
year = "2013",
month = "1",
day = "1",
doi = "10.1016/j.jfca.2013.02.009",
language = "Unknown",
volume = "30",
pages = "130--138",
journal = "Journal of Food Composition and Analysis",
issn = "0889-1575",
publisher = "Elsevier Science B.V., Amsterdam.",
number = "2",

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TY - JOUR

T1 - Antioxidant activity, quality parameters and mineral content of Portuguese monofloral honeys

AU - Gonçalves, Maria Margarida Boavida Pontes

AU - Mendes, Benilde Simões

N1 - http://www.sciencedirect.com/science/article/pii/S0889157513000410 http://www.deepdyve.com/lp/elsevier/antioxidant-activity-quality-parameters-and-mineral-content-of-6IbjJF02kU Salima Rehemtula: Sem PDF.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Physicochemical properties (pH, free, lactonic and total acidity, electrical conductivity and moisture), main mineral content (potassium, sodium, calcium, magnesium and iron) and antioxidant activity (total phenolics, 1,1diphenyl-2-picrylhydrazyl radical scavenging and ferric reduction antioxidant power) were determined for 39 Portuguese monofloral honeys (rosemary, orange, thyme, arbutus, locust podshrub and heather) with different geographical origins. Portuguese honeys showed good chemical and nutritional qualities fulfilling the criteria described in Directive 2001/110/CE. Potassium was the main mineral component representing 85% of total minerals. The mineral composition of sodium (4.63–200.60mg/kg), calcium (0.43–72.30mg/kg), magnesium (3.05–82.20mg/kg) and iron (below 7.06mg/kg) were higher for heather, eucalypt and arbutus honeys. Monofloral honeys of arbutus (Arbutus unedo), locust podshrub (Ceratonia siliquaL.) and heather (Erica umbellata) showed higher antioxidant activity with phenolic contents higher than 600mg gallic acid equivalents (GAE)/kg, a DPPH scavenging activity higher than 50% and a ferric reduction antioxidant power above 600μM Fe2+. Furthermore, the chemometric analysis revealed that total phenolic content was a crucial variable explaining the antioxidant activity of arbutus and locust podshrub honeys characteristic of the south of Portugal.

AB - Physicochemical properties (pH, free, lactonic and total acidity, electrical conductivity and moisture), main mineral content (potassium, sodium, calcium, magnesium and iron) and antioxidant activity (total phenolics, 1,1diphenyl-2-picrylhydrazyl radical scavenging and ferric reduction antioxidant power) were determined for 39 Portuguese monofloral honeys (rosemary, orange, thyme, arbutus, locust podshrub and heather) with different geographical origins. Portuguese honeys showed good chemical and nutritional qualities fulfilling the criteria described in Directive 2001/110/CE. Potassium was the main mineral component representing 85% of total minerals. The mineral composition of sodium (4.63–200.60mg/kg), calcium (0.43–72.30mg/kg), magnesium (3.05–82.20mg/kg) and iron (below 7.06mg/kg) were higher for heather, eucalypt and arbutus honeys. Monofloral honeys of arbutus (Arbutus unedo), locust podshrub (Ceratonia siliquaL.) and heather (Erica umbellata) showed higher antioxidant activity with phenolic contents higher than 600mg gallic acid equivalents (GAE)/kg, a DPPH scavenging activity higher than 50% and a ferric reduction antioxidant power above 600μM Fe2+. Furthermore, the chemometric analysis revealed that total phenolic content was a crucial variable explaining the antioxidant activity of arbutus and locust podshrub honeys characteristic of the south of Portugal.

KW - Ceratonia siliqua L.

KW - Quality parameters

KW - Main mineral content

KW - Food composition

KW - Food safety

KW - Thymus spp.

KW - Monofloral honey

KW - Antioxidant activity

KW - Adulteration

KW - Arbutus unedo

KW - Food analysis

U2 - 10.1016/j.jfca.2013.02.009

DO - 10.1016/j.jfca.2013.02.009

M3 - Article

VL - 30

SP - 130

EP - 138

JO - Journal of Food Composition and Analysis

JF - Journal of Food Composition and Analysis

SN - 0889-1575

IS - 2

ER -