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Modelling the effect of fatty acids in odour development of cooked meat in vitro: part I - sensory perception

Campo, M.M., Nute, G.R., Wood, J.D., Elmore, S.J., Mottram, D.S. and Enser, M. (2003) Modelling the effect of fatty acids in odour development of cooked meat in vitro: part I - sensory perception. Meat Science, 63 (3). pp. 367-375. ISSN 0309-1740

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To link to this item DOI: 10.1016/S0309-1740(02)00095-5

Abstract/Summary

We have investigated the contribution of muscle components to the development of cooked meat odour in an aqueous model system using trained taste panels. Reaction mixtures were prepared with oleic, linoleic and linolenic acids with or without cysteine and ribose in a buffer with or without ferrous sulphate. Odour profiles were assessed and triangular tests were used to determine the ability of panellists to discriminate between mixtures. The presence of sugar and amino acid was highly detectable by panellists independently of the fatty acid considered (P < 0.001). However, the presence of C18:3 made differences. more obvious between mixtures than the presence of C18:1 or C18:2. `Meaty' notes were only associated with cysteine and ribose. `Fishy' notes were only apparent in C18:3 mixtures with or without sugar and amino acid, although the presence of cysteine and ribose decreased the perception. The addition of Fe+ +, a pro-oxidant present in the muscle, produced a reduction in the score of the attributes although the pattern was the same as when Fe was not used in the mixtures. Only `fishy' notes that were exclusively perceived in C18:3 mixtures showed a higher score in the presence of iron. Iron also produced a better discrimination in C18:3 mixtures, which were closely related to `grassy' notes in the presence of cysteine and ribose. (C) 2002 Published by Elsevier Science Ltd.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13516
Uncontrolled Keywords:odour, beef, fatty acids, in vitro, FLAVOR, BEEF, STEERS, PHOSPHOLIPIDS, PRODUCTS, QUALITY, MUSCLE, AROMA, PIGS

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