Hatha, A A M; Suresh, T; Srinivasan, D; Lakshmanaperumalsamy, P(Microbes And Enviornments, June 19, 2000)
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Abstract:
The incidence of salmonella and escherichia coli in chicken retail outlets in a residential area of coimbatore, Tamilnadu India was studied with the view that accessories may be a source of cross contamination.Accessories like cages,knives ,chopping boards weighing balance trays and the hands of butcher were examined.A toatal of 14 salmonella as well as 31 E.coli were isolated from different sources. The incidence of E.coli was higher than that of Salmonella.The highest incidence of Salmonella was found in chopping boards and the maximum level of E.Coli was detected in cages.
Description:
Microbes and Enviornments,Vol.15,No.3,173-181,2000
Hatha, A A M; Abhirosh, Chandran; Sherin, Varghese(I W A Publishing, 2008)
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Abstract:
Prevalence of faecal indicator bacteria, Escherichia coli and pathogenic bacteria, Vibrio cholerae,
Vibrio parahaemolyticus and Salmonella were analysed in Vembanadu lake (98350N 768250E), along
south west coast of India for a period of one year from ten stations on the southern and northern
sides of a salt water regulator constructed in Vembanadu Lake in order to prevent incursion of
seawater during certain periods of the year. While the northern side of the lake has a connection
to the sea, the southern side is enclosed when the salt water regulator is closed. The results
revealed the water body is polluted with high faecal coliform bacteria with mean MPN value
ranging from 1718-7706/100 ml. E. coli, V. cholerae, V. parahaemolyticus and Salmonella
serotypes such as S. paratyphi A, B, C and S. newport were isolated and this is the first report on
the isolation of these Salmonella serovars from this lake. E. coli showed highest percentage of
incidence (85.6–86.7%) followed by Salmonella (42–57%), V. choleare (40–45%) and V.
parahaemolyticus (31.5–32%). The increased prevalence of indicator and pathogenic bacteria in
the enclosed southern part of Vembanadu Lake may be resulting from the altered flow patterns
due to the salt water regulator.
Hatha, A A M; Maqbool, T K; Suresh Kumar,S(Elsevier, June 26, 2002)
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Abstract:
Bacteriological quality of individually quick frozen (IQF) shrimp products produced from aquacultured tiger shrimp
(Penaeus monodon) has been analysed in terms of aerobic plate count (APC), coliforms, Escherichia coli, coagulase-positive
staphylococci, Salmonella, and Listeria monocytogenes. Eight hundred forty-six samples of raw, peeled, and deveined tail-on
(RPTO), 928 samples of cooked, peeled, and deveined tail-on (CPTO), 295 samples of headless, undeveined shell-on (HLSO),
and 141 samples of raw, peeled, and deveined tail-off (RPND) shrimps were analysed for the above bacteriological parameters.
Salmonella was isolated in only one sample of raw, peeled tail-on. Serotyping of the strain revealed that it was S. typhimurium.
While none of the cooked, peeled tail-on shrimp samples exceeded the aerobic plate count (APC) of 105 colony forming units
per gram (cfu/g), 2.5% of raw, peeled, tail-on, 6.4% of raw, peeled tail-off, and 7.5% of headless shell-on shrimp samples
exceeded that level. Coliforms were detected in all the products, though at a low level. Prevalence of coliforms was higher in
headless shell-on (26%) shrimps followed by raw, peeled, and deveined tail-off (19%), raw, peeled tail-on (10%), and cooked,
peeled tail-on (3.8%) shrimps. While none of the cooked, peeled tail-on shrimp samples were positive for coagulase-positive
staphylococci and E. coli, 0.6–1.3% of the raw, peeled tail-on were positive for staphylococci and E. coli, respectively.
Prevalence of staphylococci was highest in raw, peeled tail-off (5%) shrimps and the highest prevalence of E. coli (4.8%) was
noticed in headless shell-on shrimps. L. monocytogenes was not detected in any of the cooked, peeled tail-on shrimps. Overall
results revealed that the plant under investigation had exerted good process control in order to maintain superior bacteriological
quality of their products
Description:
International Journal of Food Microbiology 82 (2003) 213– 221
Hatha, A A M; Abhirosh, C; Sherin, V; Thomas, A P; Mazumder, A(Elsevier, March 23, 2011)
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Abstract:
To assess the prevalence of faecal coliform bacteria and multiple drug resistance
among Escherichia coli and Salmonella serotypes from Vembanadu Lake.
Study design: Systematic microbiological testing.
Methods: Monthly collection of water samples were made from ten stations on the southern
and northern parts of a salt water regulator constructed in Vembanadu Lake in order to
prevent incursion of seawater during certain periods of the year. Density of faecal colifrom
bacteria was estimated. E. coli and Salmonella were isolated and their different serotypes
were identified. Antibiotic resistance analysis of E. coli and Salmonella serotypes was done
and the MAR index of individual isolates was calculated.
Results: Density of faecal coliform bacteria ranged from mean MPN value 2900 -7100/100ml.
Results showed multiple drug resistance pattern among the bacterial isolates. E. coli
showed more than 50% resistance to amickacin, oxytetracycline, streptomycin, tetracycline
and kanamycin while Salmonella showed high resistance to oxytetracycline, streptomycin,
tetracycline and ampicillin. The MAR indexing of the isolates showed that they
have originated from high risk source such as humans, poultry and dairy cows.
Conclusions: The high density of faecal coliform bacteria and prevalence of multi drug
resistant E. coli and Salmonella serotypes in the lake may pose severe public health risk
through related water borne and food borne outbreaks
Hatha, A A M; Lakshmanaperumalsamy, P; Suresh, T; Harsha, H T(Elsevier, January 18, 2011)
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Abstract:
Broiler chicken is gaining popularity among the consumers of India. Since poultry is recognised as a leading food
vehicle for Salmonella contamination, the prevalence and distribution of Salmonella serotypes in broiler chickens
and processing environments of retail outlets has been studied. In the present study 214 samples of broiler
chicken and 311 environmental samples from cage were analysed for the presence of Salmonella. Of the various
body parts of live chicken analysed prevalence varied from 1.4% in cloacca to 6.9% in crop region. Environmental
samples from the cage showed higher prevalence of Salmonella ranging from0 to 16.67%. Apart from Salmonella
enteritidis, which was the predominant Salmonella serotype in the chickens as well as in the environmental
samples, other serotypes such as S. bareilly, S. cerro, S. mbandaka and S. moladewere also encountered. The results
of the research calls for strict hygiene standards for retail broiler chicken processing outlets
Hatha, A A M; Thirupathi, Suresh; Doriaraj, Sreenivasan; Sangeetha, Sreenivasan; Lakshmanaperumalsamy, P(Microbes And Enviornments, October 13, 2004)
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Abstract:
The source of samonella cross contamination in 15 retail chicken outlets in aresidual area in coimbatore city ,sourthern India was studied. Chopping boards and the butchers hands were predominant followed by knives and the weighing balance tray. Serotyping of the salmonella strains revealed that all strains were salmonella enteritis, except one which was found to be salmonella cerro.The anti bacterial activity of commonly used spices were evaluated.