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| Effect of the Inclusion of Chestnut in the Finishing Diet on Volatile Compounds of Dry-Cured Ham from Celta Pig Breed |
| José M Lorenzo, Javier Carballo , Daniel Franco |
1.Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibrán das Viñas, Ourense 32900, Spain
2.Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, Ourense 32004, Spain |
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摘要 The effect of the inclusion of chestnut in pigs finishing diet on volatile compounds of dry-cured Celta ham was studied. Twelve hams of each type (from three different pigs finishing diets: concentrate (CO), mixed (MI) and chestnut (CH)) were used. Volatiles were extracted using a purge-and-trap method and analyzed by gas chromatography/mass spectrometry (GC/MS). Thirty-nine volatile compounds were identified in dry-cured Celta ham samples. Most abundant volatiles in ham samples were aldehydes, which represented respectively, 53% (CO), 51% (MI) and 46% (CH) of the total volatile composition. With the exception of 2-butenal, 2-methyl, all aldehydes were affected by feeding system. On the other hand, hydrocarbons n-alkanes were the second major group in the volatile profile of dry-cured Celta hams and represented 28.9, 35.7 and 32.4% of the total volatile composition for CO, MI and CH groups, respectively. Ham samples from chestnut group showed a higher content of alcohols and this result could be related with the inclusion of chestnut in the finishing diet of pigs. Principal component analysis showed a good separation among groups. The discriminant analysis selected eight variables (butanoic acid, hexanal, octanal, nonenal (E), decenal (E), tetradecane, decane trimethyl and pyridine 2-methyl) and calculated two discriminating functions to predict if chestnut has been included in the finishing diet. Thus, it was possible to discriminate between groups fed with finishing diets containing chestnuts in their composition (mixed and chestnut group).
Abstract The effect of the inclusion of chestnut in pigs finishing diet on volatile compounds of dry-cured Celta ham was studied. Twelve hams of each type (from three different pigs finishing diets: concentrate (CO), mixed (MI) and chestnut (CH)) were used. Volatiles were extracted using a purge-and-trap method and analyzed by gas chromatography/mass spectrometry (GC/MS). Thirty-nine volatile compounds were identified in dry-cured Celta ham samples. Most abundant volatiles in ham samples were aldehydes, which represented respectively, 53% (CO), 51% (MI) and 46% (CH) of the total volatile composition. With the exception of 2-butenal, 2-methyl, all aldehydes were affected by feeding system. On the other hand, hydrocarbons n-alkanes were the second major group in the volatile profile of dry-cured Celta hams and represented 28.9, 35.7 and 32.4% of the total volatile composition for CO, MI and CH groups, respectively. Ham samples from chestnut group showed a higher content of alcohols and this result could be related with the inclusion of chestnut in the finishing diet of pigs. Principal component analysis showed a good separation among groups. The discriminant analysis selected eight variables (butanoic acid, hexanal, octanal, nonenal (E), decenal (E), tetradecane, decane trimethyl and pyridine 2-methyl) and calculated two discriminating functions to predict if chestnut has been included in the finishing diet. Thus, it was possible to discriminate between groups fed with finishing diets containing chestnuts in their composition (mixed and chestnut group).
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Received: 10 October 2012
Accepted:
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| Fund: This work was financially supported by the Spanish Ministry of Science and Innovation (AGL2008-05274-C02-01/ALI). |
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Corresponding Authors:
Correspondence José M Lorenzo, Tel: +34-988-548277, Fax: +34-988-548276, E-mail: jmlorenzo@ceteca.net
E-mail: jmlorenzo@ceteca.net
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Cite this article:
José M Lorenzo, Javier Carballo , Daniel Franco.
2013.
Effect of the Inclusion of Chestnut in the Finishing Diet on Volatile Compounds of Dry-Cured Ham from Celta Pig Breed. Journal of Integrative Agriculture, 12(11): 2002-2012.
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