Refrigerated poultry breast fillets packed in modified atmosphere and irradiated: bacteriological evaluation, shelf life and sensory acceptance

In the present study the effects on shelf life and sensory acceptance of gamma-irradiated refrigerated poultry breast fillets subjected to modified atmosphere packaging (80% CO2/20% N2 or vacuum) were investigated. After irradiation with 2 kGy, sensory acceptance tests and monitoring of bacterial growth were performed in order to determine the sanitary quality of the samples. It has been found that irradiation, used in combination with modified atmosphere packaging, can double the shelf life of refrigerated poultry breast fillets by reducing the populations of aerobic mesophilic and psychrotrophic bacteria, enterobacteria, coliforms, Listeria spp. and Aeromonas spp., without significantly modifying its color or its overall appearance, the lactic acid bacteria being the most resistant to exposure to radiation and carbon dioxide.

Pathogenesis and management of diabetic foot--a review.

In the present article, the pathophysiology, evaluation and management guidelines of diabetic foot infections are reviewed with a view to reducing the medical morbidity, psychological distress and financial costs.

Estudio microbiológico de infecciones bucomaxilofaciales pediátricas / Microbiology study of pediatric oral and maxillofacial infections

Muy pocos trabajos de investigación han sido destinados al estudio de las infecciones buco máxilo faciales en relación con pacientes infantiles, e incluso, es muy común que se apliquen las conclusiones obtenidas de estudios realizados en adultos a niños, existiendo importantes diferencias imposibles de ignorar. Además, según un análisis estadístico del Hospital de Niños Roberto del Río, estos cuadros se presentan con alta frecuencia. En el presente estudio se realizó un análisis prospectivo, en una muestra de 64 pacientes odontopediátricos, entre 0 y 14 años de edad, los cuales acudienron al Servicio Dental de Urgencia del Hospital de Niños Roberto del Río, por cuadros infecciosos de la región buco máxilo facial. Debido a esto, se realizaron cultivos microbiológicos, aerobios y anaerobios, con el fin de obtener la microflora comprometida en los procesos infecciosos de los niños. Resultando ser de carácter polimicrobiano mixto, con predominio de formas cocáceas grampositivas. Por otro lado, se concluyó que las penicilinas continúan siendo los antimicrobianos de primera elección en el tratamiento de las infecciones buco máxilo faciales, incluyendo las infantiles

Bacterial etiologic agents of ocular infection in children in the Islmic Republic of Iran

Bacterial agents of ocular infection were studied in 485 children under 14 years of age from October 1993 to February 1995. Aerobic and anaerobic bacteriological methods and antimicrobial susceptibility testing were used. Conjunctivitis was the most common clinical feature [77.9%]. Bacterial agents were detected in the ocular samples of 66.8% of children and Staphylococcus aureus was the most common causative agent, being responsible for 28% of all cases. The frequency of ocular infection in patients aged 0-2 years was significantly higher than other age groups [P = 0.04]. Approximately 84% of all bacteria were sensitive to chloramphenicol

Role of aerobes and anaerobes in chronic sinusitis

Biopsy specimens of 52 chronically inflamed sinuses [20 maxillary and 32 ethmoid] were processed for aerobic and anaerobic bacteria during endoscopy. Bacterial growth was present in all specimens. In the 20 maxillary specimens, anaerobes were isolated in 16 and 36 were anaerobes in a total of 56 bacterial isolates. The predominant anaerobic organisms were bacteroids and peptostreptococci. The results indicated the major role of anaerobes in chronic maxillary sinusitis. On the other h and, the results showed the minor role of anaerobes in chronic ethmoid sinusitis. In ethmoid sinus, aerobic bacteria were isolated in all the specimens. Aerobes were the only isolates in 28 specimens, while only four specimens were mixed with anaerobes. There were 96 isolates, 80 were aerobic or facultative anaerobic. The predominant aerobic organisms in chronic ethmoid sinusitis were staphylococci and a- and b-hemolytic streptococci. It can be concluded that anaerobes play a minor role in chronic ethmoid sinusitis compared with their major role in chronic maxillary sinusitis

Isolation, identification and antimicrobial susceptibility of oral fusobacterium species from spittoons and air-water syringes

Foram isolados vinte e quatro isolados de Fusobacterium spp. de cuspideiras (23) e segingas tríplice (1) de equipamentos odontológicos. A susceptibilidade in vitro para nove agentes antimicrobianos foi determinada pelo método de diluiçäo em ágar. Dezoito isolados de cuspideiras (60 por cento) foram identificados como Fusobacterium nucleatum e 5, como Fusobacterium sp. (16,6 por cento). Somente um isolado de seringa tríplice foi identificado como F. nucleatum. Todos os isolados foram sensíveis para ampicilina, cefoxitina, clindamicina, lincomicina, imipenem, metronidazol, penicilina G e tetraciclina. A resistência para eritromicina foi encontrada para 26,1 por cento dos isolados de cuspideiras

Aislamiento de las principales bacterias contaminantes en carnes de pescado que se expenden en mercados de Santa Cruz / Isolation the principal bacterias polluting meats, and fish that are sold in the Santa Cruz markets

Se trata de un estudio para determinar la contamicacion bacteriana en las carnes de pescado, programa que efectua la Universidad en coordinacion con la H. Alcaldia Minucipal (H.A.M.) a traves de la Secretaria de Industria y Comercio. Este fue realizado en el mes de Mayo y Junio de 1996. Analizando carnes de pescado que se expenden en los mercados de la ciudad de Santa Cruz de la Sierra. Se examinaron 122 muestras tomadas de 12 mercados. Se realizo el analisis bacteriologico de las carnes de pescado. Dicho trabajo se efectuo en el Laboratorio de Bacteriologia de la Facultad de Medicina Veterinaria y Zootecnia (F.M.V.Z.). A los resultados se aplico el analisis estadistico de ANAVA, prueba de Duncan. Los resultados a los que arribamos fueron los siguientes: Las muestras tomadas de 56 puestos de expendio, dieron un total de 690 Kg de carne de pescado. De esto se determino que el contaminte mayormente encontrado corresponde al grupo de bacterias Mesofilas aerobias con un 89,4 por ciento, seguido de las bacterias coliformes con el 68,9 por ciento, respecto a salmonella sp. no se observo contaminacion en las carnes, mientras que el 44,3 por ciento cooresponden a Estaphylococcus todo este analisis se hizo de acuerdo a Normas Bolivianas. La Categorizacion de las carnes de pescado desde el punto de vista de la inspeccion Veterinaria, se clasifico en 3 categoria; A, B y C siendo pescado fresco, no fresco y alterados respectivamente. De esto se observo que solo el 38,6 por ciento corresponde a la categoria A, el 36,4 por ciento del pescado que se expende esta en menor o mayor grado contaminado debido a una inadecuada conservacion y un pesimo control higienico sanitario conviertiendolo en un peligro potencial para la salud publica.

Análise da açäo antibacteriana de três cimentos obturadores contendo hidróxido de cálcio / Analysis of the antibacterial action of three filling cements containing calcium hydroxide

Os autores analisaram comparativamente a açäo antibacteriana de três cimentos obturadores (Sealapes, Sealer 26 e Apexit) sobre culturas puras de três bactérias aeróbias facultativas (Escherichia Coli, Pseudomona Aeruginosa e Estreptococcus Faecalis). Os resultados obtidos mostraram que os cimentos analisados näo promoveram halos de inibiçäo de crescimento em nenhum dos referidos microorganismos, expressando total ausência de efeito antibacteriano

Microbial study of bronchial lavage versus sputum in asthmatic children

This study included 50 asthmatic children [30 males, and 20 females], aged 2-13 years, they were suffering from allergic infectious asthma. They were subjected to all routine investigations as well as some immunological parameters. Ninteen [19] children out of the 50 were selected and studied for their bacteriological pattern of the bronchial lavage versus their sputa, in between attacks using investigative bronchoscopy and nasotracheal aspiration by catheterization. Eight [8] cultures out of 19 obtained through bronchoscope gave growth as follows: Klebsiella; 2 [25%], Neisseria; 1 [12.5%], the rest 5 showed no growth [62.5%]. The bronchial lavage obtained by nasotreacheal aspiration showed growth for Candida; 2 [18.2%], Strept viridans; 4 [36.4%], Staph. aureus; 3 [27.3%], Diphtheroid; 2 [18.2%] and Neisseria in one case only [9.1%] out ofthe 11 case respectively. One patient only gave growth for anaerobic organism [streptococcal group]. Three patients [27.3%] gave no growth. On the otherhand their sputa gave growth for, Candida; 1 [5.3%] Strept viridans; 5 [26. 3%], Diphtheroid; 4 [21.1%], Neisseria; 7 [36.8%], Klebsiella; 2 [10.5%], respectively in between attacks. The sputa of the total 50 asthmatics during attack gave growth for Haemophilus group; 39 [78%], Klebsiella; 4 [8%], Neisseria; 7 [14%], respectively. We conclude that sputa may not be an accurate reflection of lower respiratory infections, as there is a possibility of contamination. Also no correlation was found between sputum culture results and bronchial lavage either between attacks or during attacks. No correlations was found between [+ve] cultures and severity of the disease. Role of bacteria in triggering attacks of bronchial asthma is still vague

Influência da taxa de contaminaçäo inicial do leite, por bactérias mesófilas aeróbias, sobre o resultado da pasteurizaçäo / Milk pasteurization: efficiency of the HTST process according to its bacterial concentration

Em estudo crítico sobre o processo de pasteurizaçäo do leite pelo método HTST, os autores demonstraram que taxas elevadas de contaminaçäo inicial do produto cru näo constituem variável capaz de influenciar a eficiência do processo, aferida em termos da amplitude entre a carga bacteriana apatogênica mesófila aeróbia inicial e final do produto, sendo essa tanto menor quanto menor for o teor de tais bactérias no leite cru. Conceberam, ainda, modelo teórico cuja utilizaçäo possibilita o desenvolvimento de modelos simulados tanto para o monitoramento do controle da qualidade como para a avaliaçäo da própria técnica de contagem bacteriana do leite (SPC)

Eficacia clinica de la cefoperazona asociada a tinidazol en el tratamiento de infecciones mixtas en adultos / Clinic efficacy of the cefoperazone associated with tinidazole in mixed infections treatment in adult

Se evaluó, en infecciones mixtas por microorganismos aerobios y anaerobios, la eficacia y tolerancia del tratamiento combinado de Cefoperazona (2g/dia) y tinidazol (0.8g/d), administrados por via intravenosa en 36 pacientes (rango de edad 13-65 anos, 20 mujeres y 16 hombres) durante 5-16 dias (promedio 7.8 dias) con las siguientes infecciones severas: peritonitis (n=3), enfermedad inflamatoria pelviana (n=3), neumonia (n=2) colecistitis(n=1), osteomielitis (n=1), abceso subfrenico (n=3), abceso hepatico, tubo ovarico y gangrena de miembros inferiores (1 caso c/u). Los microorganismos sensibles a cefoperazona y/o tinidazol aislados fueron: E. coli, Acinetobacter, sp., Bacteroides, sp., P.aeruginosa, K. pneumoniae, Peptoestreptococcus, Enterococos, P. vulgaris, P. mirabilis y Bacteroides, sp