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Chemometric modelling to relate antioxidants, neutral lipid fatty acids and flavour components in chicken breast

Jahan, M.K. and Paterson, A. and Piggott, J.R. and Spickett, C.M. (2005) Chemometric modelling to relate antioxidants, neutral lipid fatty acids and flavour components in chicken breast. Poultry Science, 84 (1). pp. 158-166. ISSN 0032-5791

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    Abstract

    Relationships among quality factors in retailed free-range, corn-fed, organic, and conventional chicken breasts (9) were modeled using chemometric approaches. Use of principal component analysis (PCA) to neutral lipid composition data explained the majority (93%) of variability (variance) in fatty acid contents in 2 significant multivariate factors. PCA explained 88 and 75% variance in 3 factors for, respectively, flame ionization detection (FID) and nitrogen phosphorus (NPD) components in chromatographic flavor data from cooked chicken after simultaneous distillation extraction. Relationships to tissue antioxidant contents were modeled. Partial least square regression (PLS2), interrelating total data matrices, provided no useful models. By using single antioxidants as Y variables in PLS (1), good models (r2 values > 0.9) were obtained for alpha-tocopherol, glutathione, catalase, glutathione peroxidase, and reductase and FID flavor components and among the variables total mono and polyunsaturated fatty acids and subsets of FID, and saturated fatty acid and NPD components. Alpha-tocopherol had a modest (r2 = 0.63) relationship with neutral lipid n-3 fatty acid content. Such factors thus relate to flavor development and quality in chicken breast meat.

    Item type: Article
    ID code: 8401
    Keywords: α-tocopherol, antioxidant enzyme, free range, organic, partial least squares regression modeling, food, chicken, Biology, Animal Science and Zoology
    Subjects: Science > Natural history > Biology
    Department: Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical Sciences
    Unknown Department
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    Depositing user: Strathprints Administrator
    Date Deposited: 04 Aug 2009 10:57
    Last modified: 05 Sep 2014 13:34
    URI: http://strathprints.strath.ac.uk/id/eprint/8401

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