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L. monocytogenes
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Ebook "Listeria monocytogenes in the food processing environment" from isolation methods and characterization (including whole genome sequencing), to manipulation and control. Listeriosis, a foodborne disease caused by Listeria monocytogenes is a major concern for public health authorities. In addition, addressing issues relating to L. monocytogenes is a major economic burden on industry.
103p
tudohanhtau1006
29-03-2024
2
1
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Gluconobacter asaii (a bacterial antagonist naturally occurring on apple fruit) and bacteriophage were tested as biocontrol agents of Listeria monocytogenes on fresh-cut honeydew melon pieces during low temperature and packing with functional film made by zeolite mixed pegmatite thickness with 20 µm.
5p
viisac
23-09-2023
2
1
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Bài viết Khả năng kháng kháng sinh của vi khuẩn Listeria monocytogenes phân lập từ thịt gà được nghiên cứu nhằm xác định tỉ lệ nhiễm và thực trạng kháng kháng sinh của vi khuẩn L. monocytogenes trên thịt gà tại một số siêu thị huyện Gia Lâm và quận Long Biên, thành phố Hà Nội.
8p
viwmotors
13-12-2022
19
4
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Nghiên cứu này nhằm khảo sát khả năng kháng khuẩn của cao chiết nước và cao chiết ethanol từ lá vối (Cleistocalyx operculatus) thu hái tại Quảng Nam lên bốn chủng gây bệnh thường gặp. Kết quả cho thấy cao etanol có hiệu quả ức chế vi khuẩn tốt hơn cao nước, với giá trị nồng độ ức chế tối thiểu (MIC) của trên hai chủng vi khuẩn L. monocytogenes, S. aureus là 0,4 mg/ml, đối với E. coli là 1,6 mg/ml và Salmonella sp là 3,125 mg/ml.
4p
vipatriciawoertz
31-05-2022
17
1
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The MIC value of compound 30 against Enterococcus faecalis, Listeria monocytogenes, and Bacillus cereus was 8 µg/mL. A computational study for prediction of ADME and drug-like properties (solubility, drug-likeness, and drug score) as well as potential toxicity profiles of compounds 2–40 was performed using the Molinspiration online property calculation toolkit and Osiris Property Explorer. As most of our compounds meet Lipinski’s rule of five, they promise good solubility and permeability.
25p
langthannam
29-12-2021
10
1
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In response to 500 nM AHL, (C4-HSL treated) strain BN3 showed 27-fold up-regulation of srtA gene (encodes enzyme sortase) as compared to control. Our study confirmed the cross-talk between Gram-positive and Gram-negative bacteria since L. monocytogenes strain BN3 responds to C4-HSL, which is normally produced by Gram-negative bacteria.
3p
mudbound
10-12-2021
21
0
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The results showed that the RPA reaction, without requiring complex thermal cycles, was well-performed in the optimal conditions of 39°C within only 25 minutes. The limit of detection was identified as 310 fg of L. monocytogenes genomic DNA, which was 1000-fold more sensitive than the conventional PCR. RPA also succeeded to directly detect L. monocytogenes cells at a concentration as low as 2.5 × 101 Colony Forming Unit (CFU)/mL in pure cultures. In addition, RPA could accurately detect L. monocytogenes at 2.5 × 102 CFU/mL in milk without sample extraction or processing.
5p
mudbound
10-12-2021
12
1
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Listeria monocytogenes is a widespread foodborne pathogen that can cause listeriosis, a potentially fatal infection. L. monocytogenes is subdivided into four phylogenetic lineages, with the highest incidence of listeriosis occurring within lineage I followed by lineage II. Strains of L. monocytogenes differ in their phenotypic characteristics, including virulence.
11p
vitzuyu2711
29-09-2021
20
1
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High pressure processing (HPP; i.e. 100–600 MPa pressure depending on product) is a non-thermal preservation technique adopted by the food industry to decrease significantly foodborne pathogens, including Listeria monocytogenes, from food. However, susceptibility towards pressure differs among diverse strains of L. monocytogenes and it is unclear if this is due to their intrinsic characteristics related to genomic content.
14p
vijeeni2711
24-07-2021
11
0
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Listeria (L.) monocytogenes strains show a high diversity regarding stress tolerance and virulence potential. Genome studies have mainly focused on specific sequence types (STs) predominantly associated with either food or human listeriosis.
18p
vijeeni2711
30-06-2021
12
1
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Bài viết này xây dựng qui trình RPA nhằm phát hiện nhanh vật liệu di truyền của vi khuẩn L. monocytogenes với mong muốn góp phần vào xây dựng công cụ kiểm soát và ngăn chặn nguy cơ bùng phát ngộ độc thực phẩm trên diện rộng ở Việt Nam. Mời các bạn cùng tham khảo!
7p
octoberer
26-06-2021
21
1
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Our findings suggest that the timely activation of TFs associated with an immediate stress response, followed by the expression of genes for repair purposes, and then re-growth and metabolism, could be a strategy of L. monocytogenes to survive and recover extreme HPP conditions.
15p
vilichoo2711
23-06-2021
13
1
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High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries and can start to grow again during long-term cold storage.
20p
vilichoo2711
25-06-2021
14
1
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In the present study, an attempt was made to detect potentially pathogenic Listeria monocytogenes along with other Listeria spp. From Ready to Eat meat products from retail markets of Punjab. A total of 200 samples of Ready to Eat meat products comprising 17 chicken seekh, 26 chicken nuggets, 52 chicken salami, 14 chicken sausage, 6 bacon, 7 pork sausage, 10 chicken garlic fingers, 1 chicken lollipop, 11 mutton shammi kebab, 10 chicken shammi kebab, 13 chicken Tikka, 1 mutton Tikka, 32 seekh kebab were processed.
7p
chauchaungayxua10
19-03-2021
11
1
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Keeping in view the above facts and its zoonotic potential the present study was aimed to determine the prevalence and phenotypic characterization of Listeria spp. from carabeef and slaughterhouse environment and its prevalence and phenotypic characterization of Listeria spp. from carabeef and slaughterhouse environment and virulence profiling and genotypic characterization of Listeria spp., especially L. monocytogenes isolates.
15p
chauchaungayxua10
19-03-2021
7
1
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Nghiên cứu nhằm xác định khả năng kháng khuẩn của 7 loại tinh dầu: tinh dầu tần ( Plectranthus amboinicus), quế ( Cinnamon zeylanicum), sả ( Cymbopogon citratus), hương nhu ( Ocimum gratiss ium), bạc hà ( Mentha arvensis), chúc ( Citrus hystrix) và rau om ( Limnophila aromatica) đối với 8 chủng vi khuẩn: Escherichia coli (ATCC 25922, E. coli 92E, E. coli 82E, E. coli 74E); S. typhimurium; P. aeruginosa; S. aureus và L. monocytogenes bằng phương pháp khuếch tán trên đĩa thạch.
9p
larachdumlanat129
19-01-2021
41
4
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Listeria monocytogenes is an important foodborne pathogen with the ability to survive and grow in different foods and food processing environments. The variability in innate stress tolerance abilities of L. monocytogenes strains (n=104) isolated from clinical (n=35), environment (n=28) and food (n=41) sources was investigated against salt (2.5% to 12.5%), pH (pH 4.0 to 9.5) and low temperature (down to 4⁰C). The stress tolerance abilities were correlated with the source of isolation, serogroups and identifying the prevalent stress tolerant genotype.
13p
cothumenhmong7
09-09-2020
16
1
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The present study was conducted to study the prevalence of the food borne zoonotic pathogen of animal origin, L. monocytogenes by isolation and identification, molecular detection and antibiotic sensitivity pattern from different samples of cattle sources in Aizawl district of Mizoram. A total 200 numbers of sample including cattle faeces (50), raw milk (50) and milk products (100) were collected randomly from different unorganized shop and farms.
15p
gaocaolon5
14-06-2020
11
2
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Forty fish procured from retail shops located in and around from west Chennai were examined for the presence of Listeria monocytogenes. The cultural, biochemical, molecular and phylogenetic relationship characterization of isolates was performed to detect genetic variations among L. monocytogenes isolates. The selective enrichment procedure followed by selective isolation was used for Listeria isolation from fish intestines. Twenty (50%) L. monocytogenes were isolated and identified from fish intestines. Two different varieties were analyzed by the BLAST sequencing analysis of the isolates.
11p
gaocaolon5
14-06-2020
15
1
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Listeriosis was important bacterial disease public health significance affecting human as well as animals. Determination of the seroprevalance of antibodies to L. monocytogenes in cattle was attempted from the different organized cattle farm around the Nagpur region, Maharashtra India. Listeriolysin O is a haemolysin produced by the bacterium listeria monocytogenes for serological characterization. Present studies were targeted for serological detection of listeriolysin O in cattle serum. Serological prevalence in healthy animal was 4.
5p
cothumenhmong5
17-05-2020
11
1
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