ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The availability and microbial quality of retail beef-soy blends in the Detroit area were investigated. Samples were stored at 4°C and microbial populations, pH, hydration and organoleptic qualities were studied from purchase day to spoilage. Retail hamburger meat, dry and re-hydrated texturized soy protein, and blends (10-70%) were also studied. The rate of microbial growth in the soy-beef blends (25% soy) was faster than in beef, and spoilage was detected after 5-6 days at 4°C. The spoilage microflora was similar to that of fresh beef, consisting predominantly of gram negative psychrophiles. Spoilage was accompanied by an increase in pH, slime formation and off-odors. It is concluded that at levels acceptable to the consumer (approx 25% soy) beef-soy blends spoil in a manner similar to that of ground beef and should be stored and treated as such.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1978.tb02294.x
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