In order to classify unknown gelatin into their species of origin, a simple and rapid method for the qualitative determination was developed using Fourier transform infrared (FTIR) in combination with attenuated total reflectance (ATR) and discriminant analysis. The spectra were analysed using a chemometric method, principal component analysis (PCA), to classify and characterise gelatin compounds using regions of the FTIR spectra in the range of 3290-3280 cm(-1) and 1660-1200 cm(-1) as calibration models. Results from PCA, which were subsequently represented by the Cooman's plot showed a clear distinction between gelatin samples of bovine and porcine origins. This qualitative approach, besides providing a rapid determination of the source of gelatin, may also be established based on a second derivative study of the FTIR spectrum to alleviate any doubt of the gelatin source for applications in the food and pharmaceutical industries. (C) 2009 Elsevier Ltd. All rights reserved.
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Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Man, YBC
Syahariza, ZA
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Syahariza, ZA
Mirghani, MES
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Mirghani, MES
Jinap, S
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Jinap, S
Bakar, J
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
机构:
Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Man, YBC
Syahariza, ZA
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Syahariza, ZA
Mirghani, MES
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h-index: 0
机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Mirghani, MES
Jinap, S
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h-index: 0
机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia
Jinap, S
Bakar, J
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机构:Univ Putra Malaysia, Fac Food Sci & Biotechnol, Dept Food Technol, Serdang 43400, Selangor, Malaysia