Portugal, Estudio exhaustivo de la miel con denominación de origen protegida y contribución a la mejora de las especificaciones legales (2012)

miércoles 9 de octubre de 2019
Fuente: 
https://www.academia.edu/26309324/Comprehensive_Study_of_Honey_with_Protected_Denomination_of_Origin_and_Contribution_to_the_Enhancement_of_Legal_Specifications?email_work_card=view-paper

Molecules

2012

,

17 

, 8561-8577; doi:10.3390/molecules17078561

molecules

ISSN 1420-3049

www.mdpi.com/journal/molecules

 Article

Comprehensive Study of Honey with Protected Denomination ofOrigin and Contribution to the Enhancement of LegalSpecifications

Antonio Iglesias

1

, Xesus Feás

2

, Sandra Rodrigues

3

, Julio A. Seijas

2

, M. Pilar Vázquez-Tato

2

,Luís G. Dias

3

 and Leticia M. Estevinho

3,

*

1

 Department of Anatomy and Animal Production, Faculty of Veterinary Science,University of Santiago de Compostela, Lugo, Galicia E-27002, Spain; E-Mail: antonio.iglesias@usc.es

2

 Department of Organic Chemistry, Faculty of Veterinary Science, University of Santiago de Compostela,Lugo E-27002, Spain; E-Mails: xesus.feas@usc.es (X.F.); julioa.seijas@usc.es (J.A.S.); pilar.vazquez.tato@usc.es (M.P.V.-T.)

3

 CIMO-Mountain Research Centre, Agricultural College of Bragança, Polytechnic Institute of Bragança,Campus Santa Apolónia, Bragança E-5301-855, Portugal; E-Mails: srodrigues@ipb.pt (S.R.);ldias@ipb.pt (L.G.D.)

*

 Author to whom correspondence should be addressed; E-Mail: leticia@ipb.pt;Tel.: +351-2733-03342.

  Received: 29 May 2012; in revised form: 28 June 2012 / Accepted: 5 July 2012 / Published: 17 July 2012

Abstract:

 In this study the characterization of a total of 60 honey samples with ProtectedDenomination of Origin (PDO) collected over three harvests (2009–2011, inclusive), fromthe Northeast of Portugal was carried out based on the presence of pollen, physicochemicaland microbiological characteristics. All samples were found to meet the European Legislation, but some didn’t meet the requirements of the PDO specifications. Concerning the floral originof honey, our results showed the prevalence of rosemary (

 Lavandula pedunculata

)

 pollen.The microbiological quality of all the analyzed samples was satisfactory, since fecalcoliforms, sulfite-reducing clostridia and

Salmonella

 were absent, and molds and yeastswere detected in low counts. Significant differences between the results were studied usingone-way analysis of variance (ANOVA), followed by Tukey’s HSD test. The samples weresubmitted to discriminant function analysis, in order to determine which variablesdifferentiate between two or more naturally occurring groups (Forward Stepwise Analysis).The variables selected were in this order: diastase activity, pH, reducing sugars, free acidityand HMF. The pollen spectrum has perfect discriminatory power. This is the first study in

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 Molecules

2012

,

17 

 8562

which a honey with PDO was tested, in order to assess its compliance with the PDO bookof specifications.

Keywords:

 honey; microbiological; palynological; physicochemical; Protected Denominationof Origin