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Quality and shelf life of packaged fresh sliced mushrooms stored at two different temperatures

González-Fandos, Elena; Simón Jiménez, Ana; Tobar Pardo, Vanesa (2006)

 
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mtt-afs-v15n4p414.pdf (234.5Kt)
Lataukset 


González-Fandos, Elena
Simón Jiménez, Ana
Tobar Pardo, Vanesa

Julkaisusarja
Agricultural and Food Science

Volyymi
15

Numero
4

Sivut
414-422


MTT Agrifood Research Finland The Scientific Agricultural Society of Finland
2006
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2015090311260
Tiivistelmä
The sensory and microbiological quality of sliced mushrooms (Agaricus bisporus L.) packaged in films of perforated and non-perforated PVC and stored at 3 and 9ºC, was studied. The carbon dioxide and oxygen content inside the packages, colour, weight loss, sensory attributes, mesophiles, Pseudomonas, Enterobacteriaceae, aerobic and anaerobic spore formers were determined. The atmosphere generated with the perforated PVC film was similar to that of air atmosphere at 3 or 9ºC. T.he non-perforated PVC film generated inside the packages CO2 : O2 concentrations of 3.4% : 8.1% at 3ºC and CO2 : O2 concentrations of 4.5% : 0.15% at 9ºC. Browning of mushrooms was lower at 3 than at 9ºC. The quality of sliced mushrooms packaged in perforated PVC and stored at 3ºC was adequate after 9 days. However, at 9ºC, the slice deformation and brown blotches incidence were severe after 9 days. The atmosphere generated with non-perforated PVC inhibited aerobic microorganism growth compared to mushrooms packaged in perforated PVC. At 3ºC, the shelf life of mushrooms packaged in non perforated PVC was around 13 days. However, the extremely low O2 atmospheres generated at 9ºC was accompanied by off-odours and growth of anaerobic spore formers, although the appearance of sliced mushrooms was acceptable.
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