| Relationship between odour-active compounds and flavour perception in meat from lambs fed different diets. | |
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MedLine Citation:
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PMID: 20416794 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To identify the most important aroma compounds in 20d-aged meat from castrated heavy Corriedale lambs fed one of four diets, grilled loin samples were subjected to a dynamic headspace-solid phase extraction (DHS-SPE) and gas chromatography-olfactometry (GC-O). Most of the important odorants were aldehydes and ketones. To evaluate the effect of finishing diet on carbonyl compounds, a derivatization of the headspace carbonyls using o-[(2,3,4,5,6-pentafluorophenyl)methyl]hydroxylamine hydrochloride (PFBHA) and analysis by GC-MS was conducted. Diet did not affect aliphatic saturated aldehydes. The meat from lambs finished on pastures, without a concentrate supplement, had very low concentrations of lipid-derived unsaturated aldehydes and ketones and Strecker aldehydes, possibly because of the protective effect of antioxidants that occur in the diet naturally. Lamb flavour was related to the concentration of heptan-2-one and oct-1-en-3-one, but rancid or undesirable flavours were not related to the abundance of carbonyl compounds. |
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Authors:
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Virginia C Resconi; M Mar Campo; Fabio Montossi; Vicente Ferreira; Carlos Sañudo; Ana Escudero |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-03-21 |
Journal Detail:
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Title: Meat science Volume: 85 ISSN: 1873-4138 ISO Abbreviation: Meat Sci. Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-06-01 Completed Date: 2010-12-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101160862 Medline TA: Meat Sci Country: England |
Other Details:
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Languages: eng Pagination: 700-6 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain. resconi@unizar.es |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aldehydes
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analysis Animal Feed* Animals Diet / veterinary* Humans Ketones / analysis Male Meat / analysis*, standards Muscle Proteins / metabolism* Odors* Poaceae Protein Carbonylation Sheep Taste* Volatile Organic Compounds / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Aldehydes; 0/Ketones; 0/Muscle Proteins; 0/Volatile Organic Compounds |
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