Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life

We tested the growth potential of on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cantaloupe, apples and grap...

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Bibliographic Details
Published in:Italian journal of food safety 2018-10, Vol.7 (3), p.7581-7581
Main Authors: Ziegler, Matthias, Rüegg, Simon, Stephan, Roger, Guldimann, Claudia
Format: Article
Language:English
Subjects:
apples
Cantaloupe
cantaloupes
Coconut
coconuts
food matrix
Fruit mix
fruits
grapefruits
grapes
kiwifruit
Listeria monocytogenes
Mango
mangoes
pineapples
pomegranates
RTE fruits
shelf life
storage temperature
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Summary:We tested the growth potential of on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cantaloupe, apples and grapes supported the growth of with a growth potential δ>0.5 log CFU/g over six days. Mangoes, a mix of diced kiwi, cantaloupe and pineapple as well as a mix of diced pineapple, mango, grapefruit, kiwi and pomegranate did not support a growth potential that exceeded 0.5 log CFU/g over six days. The growth potential of correlated significantly with the pH; no product with a pH below 4 showed a significant growth potential of . Time after inoculation was also a significant predictor of the growth potential, while the fruit type and storage temperature were not.
ISSN:2239-7132
2239-7132
DOI:10.4081/ijfs.2018.7581