Prevalence of Listeria monocytogenes in Fresh and Raw Fish, Chicken and Beef

Lennox, A; Etta, O; John, E; Henshaw, Effiom

doi:10.9734/jamb/2017/33132

Cited by 5 publications

(1 citation statement)

References 19 publications

(24 reference statements)

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“…However, various reports have established Listeria spp. in dairy products, meat and poultry [16], ready to eat vegetables [17], smoked and raw fish [18] [19] as well as in farm animals and abattoirs [16] [20] in Nigeria. The first case of neonatal listeriosis in Nigeria was reported by Onyemelukwe and Lawande [21] when they isolated L. monocytogenes of the same serotype from a 2-day old neonate who developed Listeria meningitis after contracting the organism from the mother.…”

Section: Introductionmentioning

confidence: 99%

Listeriosis Knowledge and Attitude among Pregnant Women Attending a Tertiary Health Institution, South Western Nigeria

Chukwu¹,

Nwaokorie²

2020

AID

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Background: Listeriosis affects immunosuppressed individual's especially pregnant women. Maternal infections are usually mild for the woman, but may have devastating effects on the unborn child, including miscarriage, stillbirth, preterm labour and serious neonatal illness. WHO recommends that pregnant women should be educated to avoid foods with high risk of contamination. This study seeks to evaluate knowledge and practices predisposing to listeria infections during pregnancy. Methodology: This is a crosssectional study on pregnant women, attending the antenatal clinic of Lagos University Teaching Hospital (LUTH) using semi structured questionnaires. The knowledge score of participants was collated and analyzed using SPSS version 26. Results: The mean age of the participants was 32.07 ± 5.6 years. Forty-three (30.7%) women have had previous miscarriages with the mean no of miscarriage of 1.54. Out of 147 participants, only 20 (13.6%) admitted having heard of listeriosis while 127 (86.4%) had never heard of listeriosis and none of the participants has ever been tested for listeriosis. The Overall knowledge score was poor, and this was irrespective of age and duration of pregnancy. However, women with graduate and/or postgraduate degrees were more likely to have heard of Listeriosis (X 2 = 10.88, P = 0.028). Conclusion: Our study shows a low level of knowledge about this food-borne illness, which can lead to severe illnesses in pregnant women and their unborn child. It is necessarily to educate pregnant women on the risk of listeriosis. This would be a key factor in creating and implementing accurate measures of prevention and control.

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Section: Introductionmentioning

confidence: 99%

Listeriosis Knowledge and Attitude among Pregnant Women Attending a Tertiary Health Institution, South Western Nigeria

Chukwu¹,

Nwaokorie²

2020

AID

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Listeria monocytogenes: health risk and a challenge for food processing establishments

2021

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Modelling the interaction of the sakacin-producing Lactobacillus sakei CTC494 and Listeria monocytogenes in filleted gilthead sea bream (Sparus aurata) under modified atmosphere packaging at isothermal and non-isothermal conditions

Costa

Bover‐Cid

Bolívar

et al. 2019

International Journal of Food Microbiology

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Journal of Food Microbiology © Elsevier after peer review. To access the final edited and published work see https://doi.Highlights 19 L. sakei CTC494 inhibited L. monocytogenes growth in sea bream fillets during 20 chilled and moderate abuse temperature storage. 21 L. sakei CTC494 did not increase deterioration of filleted sea bream at an initial 22 level of ≤ 4 log cfu/g. 23 L. sakei CTC494 showed potential as bioprotective culture for fish products. 24 An approach from broth to food was developed for modelling microbial 25 interaction. 26  Interaction models simulated L. monocytogenes inhibition by the bioprotective 27 L. sakei in filleted sea bream under static and dynamic temperature.28 29 30 31 32 33 34 35 36 37 Abstract 38 The objective of this work was to quantitatively evaluate the effect of Lactobacillus 39 sakei CTC494 (sakacin-producing bioprotective strain) against Listeria monocytogenes 40 in fish juice and to apply and validate three microbial interaction models (Jameson, 41 modified Jameson and Lotka Volterra models) through challenge tests with gilthead sea 42 bream (Sparus aurata) fillets under modified atmosphere packaging stored at isothermal 43 and non-isothermal conditions. L. sakei CTC494 inhibited L. monocytogenes growth 44 when simultaneously present in the matrix (fish juice and fish fillets) at different 45 inoculation ratios pathogen:bioprotector (i.e. 1:1, 1:2 and 1:3). The higher the 46 inoculation ratio, the stronger the inhibition of L. monocytogenes growth, with the ratio 47 1:3 yielding no growth of the pathogen. The maximum population density (N max ) was 48 the most affected parameter for L. monocytogenes at all inoculation ratios. According to 49 the microbiological and sensory analysis outcomes, an initial inoculation level of 4 log 50 cfu/g for L. sakei CTC494 would be a suitable bioprotective strategy without 51 compromising the sensory quality of the fish product. The performance of the tested 52 interaction models was evaluated using the Acceptable Simulation Zone approach. The 53 Lotka Volterra model showed slightly better fit than the Jameson-based models with 75-54 92 % out of the observed counts falling into the Acceptable Simulation Zone, indicating 55 a satisfactory model performance. The evaluated interaction models could be used as 56 predictive modelling tool to simulate the simultaneous behaviour of bacteriocin-57 producing Lactobacillus strains and L. monocytogenes; thus, supporting the design and 58 optimization of bioprotective culture-based strategies against L. monocytogenes in 59 minimally processed fish products.60 4

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Prevalence of Listeria monocytogenes in Fresh and Raw Fish, Chicken and Beef

Cited by 5 publications

References 19 publications

Listeriosis Knowledge and Attitude among Pregnant Women Attending a Tertiary Health Institution, South Western Nigeria

Listeriosis Knowledge and Attitude among Pregnant Women Attending a Tertiary Health Institution, South Western Nigeria

Listeria monocytogenes: health risk and a challenge for food processing establishments

Modelling the interaction of the sakacin-producing Lactobacillus sakei CTC494 and Listeria monocytogenes in filleted gilthead sea bream (Sparus aurata) under modified atmosphere packaging at isothermal and non-isothermal conditions

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