Data di Pubblicazione:
2018
Citazione:
Volatile organic compounds associated with milk spoilage by psychrotrophic bacteria / M. Decimo, M.C. Cabeza, J.A. Ordonez, I. De Noni, M. Brasca. - In: INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY. - ISSN 1364-727X. - 71:3(2018 Aug), pp. 593-600. [10.1111/1471-0307.12485]
Abstract:
The volatile organic compounds of milk contaminated with psychrotrophic bacteria were studied by HS-SPME and GC/MS. Pseudomonas fluorescens PS14, Pseudomonas fragi PS55, Pseudomonas mosselii PS39, Pseudomonas rhodesiae PS62 and Serratia marcescens S92 were inoculated in sterilised milk (2.5% fat) stored at either 5 °C or 10 °C. A total of 47 volatile organic compounds (VOCs) belonging to seven chemical groups were identified in the spoiled milk. Volatile organic compound patterns peculiar to the inoculate bacterial strains were highlighted. 3-Methylbutan-1-ol, 2 methylpropan-1-ol, 3-hydroxybutan-2-one, butan-2,3-dione, butanoic and hexanoic acids were revealed as potential chemical spoilage indexes of milk spoilage due to the activity of the five psychrotrophic strains studied.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
HS-SPME/GC-MS; Milk; Pseudomonas; Psychrotrophic bacteria; Serratia; Volatile organic compound
Elenco autori:
M. Decimo, M.C. Cabeza, J.A. Ordonez, I. De Noni, M. Brasca
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