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Sensory Aroma Characteristics of Milk Spoilage by Pseudomonas Species
Author(s) -
Hayes W.,
White C.H.,
Drake M.A.
Publication year - 2002
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2002.tb11427.x
Subject(s) - pseudomonas fluorescens , food science , food spoilage , aroma , shelf life , pseudomonas , butterfat , sensory analysis , skimmed milk , biology , chocolate milk , chemistry , bacteria , milk fat , genetics , linseed oil
Sensory characteristics of the spoilage aromas of milk containing Pseudomonas species were determined. Two strains each of P. fluorescens, P.fragi , and P. putida were evaluated. Milk (skim and whole) was double‐steamed and inoculated with 10 3 CFU/mL (ca) of Pseudomonas. Milk samples were stored at 5 °C for 1 mo. Plate counts were conducted every 3rd day to determine growth rates. Descriptive aroma analysis was conducted weekly (n = 4) using 10 trained panelists. All 6 strains grew at refrigeration temperatures and there was no difference in growth among strains. Type and onset of spoilage depended on strain of Pseudomonas and milkfat content. This information may aid in shelf‐life prediction of milk.