Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/7956
Título: Optical fibre-based methodology for screening the effect of probiotic bacteria on conjugated linoleic acid (CLA) in curdled milk
Autor: Silva, Lurdes I. B.
Rodrigues, Dina M.
Freitas, Ana C.
Gomes, Ana M.
Rocha-Santos, Teresa A. P
Pereira, M. E.
Duarte, A. C.
Palavras-chave: Optical fibre
GC–MS
Probiotic bacteria
CLA
Curdled milk
Data: 2011
Editora: Elsevier
Citação: SILVA, Lurdes I. B....[et al] - Optical fibre-based methodology for screening the effect of probiotic bacteria on conjugated linoleic acid (CLA) in curdled milk. Food Chemistry. ISSN 0308-8146. Vol. 127 (2011), p. 222–227
Resumo: A methodology based on optical fibre (OF) detection was developed for screening the potential of CLA production by Lactobacillus casei-01, Lactobacillus acidophilus La-5 and Bifidobacterium lactis B94 in probiotic curdled milk. The OF based methodology was validated by comparison with an analytical method based on gas chromatography–mass spectrometry (GC–MS) and it showed comparable linearity (between 5 and 130 lg), accuracy and detection limits, which ranged from 1.92 to 2.56 lg for CLA methyl ester and oleic acid methyl ester, respectively. Furthermore, the proposed OF based methodology was an advantageous analytical methodology for screening CLA production in probiotic curled milk, due to its compact design and effective cost of analysis. The application of the OF analytical method allowed to detect CLA in the probiotic curdled milk; the production of CLA by probiotic enzymes reached values of 297 ± 19 lg g 1 by 60 days of ripening unfolding this potential functional food as very interesting from a technological point of view.
Peer review: yes
URI: http://hdl.handle.net/10400.14/7956
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0308814610017048
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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