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621 records · Page 35Linked to original sources
PubMed1995

Lactic acid production from molasses by Sporolactobacillus cellulosolvens.

Sporolactobacillus cellulosolvens (NCIMB 12173) isolated from an anaerobic digester and characterised biochemically is being reported for homofermentative lactic acid production from molasses in a batch culture. The effect of various process parameters on lactic acid production were optimized. A maximum lactic acid (24.2 g/l) and yield coefficient (0.79) was achieved using 3% (v/v) inoculum of 36 h old culture in molasses medium containing sugars (5%; w/v) supplemented with peptone (2.5 g/l) and (NH4)2SO4 (7.5 g/l), pH 6.5 at 40 degrees C after 72 h of fermentation.

Bacillaceae↗
PubMedDate not supplied

[The detection of Peptostreptococcus asaccharolyticus and Bacillus cereus in clinical materials from a child who died of sepsis with a fulminant clinical course].

A case of an acute disease with a rapid clinical course and a fatal outcome in the presence of irreversible toxicoinfectious shock, appearing in two children after the consumption of sheep kidneys, is described. The post mortem examination of the children revealed the presence of hemorrhagic, erosive and necrotic areas on the mucous membrane of the stomach, the duodenum and the upper section of the small intestine. From the material obtained by probing the stomach of one of the children 6 hours before death P.asaccharolyticus and B.cereus were isolated. Hemorrhage, erosions and necrosis were also found in experimental mice, injected with the centrifugates of the gastric secretions of the patient and the cultures of the isolated bacteria, which was indicative of the presence of highly active exotoxin. On the basis of the above facts, compared with similar data in the literature, this case was considered to be etiologically related anaerobic Peptostreptococcus in symbiosis with B.cereus.

Acute Disease↗
PubMedDate not supplied

Bacillus species pseudomeningitis.

Bacillus species are aerobic gram-positive bacilli that are usually found in nature in the soil and dust. Except for B. anthracis, Bacillus species are organisms of low virulence, and only rarely cause infections in immunocompromised hosts. The recovery of Bacillus species from body fluids in healthy patients would suggest a Bacillus species pseudoinfection. Bacillus species has been associated with both pseudobacteremia and least commonly, pseudomeningitis. The Bacillus organisms usually contaminate liquid culture media, which have been implicated in Bacillus pseudoinfections of the blood and cerebrospinal fluid. We report a case of Bacillus pseudomeningitis in a normal host. To our knowledge, this is the third case of Bacillus pseudomeningitis reported in the literature.

Bacillaceae Infections↗
PubMed1998

[Epidemic outbreak in a home for the aged caused probably by Bacillus cereus].

OBJECTIVES: To identify the causative agent and the factors precipitating the outbreak. DESIGN: Observational, crossover study. SETTING: Las Delicias Health district, Jerez de la Frontera. PATIENTS AND OTHER PARTICIPANTS: The population exposed, belonging to an elderly persons' home. MEASUREMENTS AND MAIN RESULTS: The total number of people exposed was the 425 persons living in an elderly persons' home in Jerez in November 1995. The clinical histories were reviewed, and a specific questionnaire used to interview 77 ill persons and 77 healthy ones. The criteria for ill cases were presence of vomiting and/or diarrhoea. 32.6% of the ill people had fundamentally vomiting; 24.67% diarrhoea, 37.66% vomiting plus diarrhoea, and 100% ran no temperature. Positive and significant OR were detected in various foods (from 2.36 to 10.52 OR). We isolated 3,000,000, and up to 5,600,000, colonies of Bacillus cereus per gram in several foods. We observed incorrect practices in the conservation and handling of foods. CONCLUSIONS: Epidemiological, microbiological and clinical indications placed us before an outbreak of food poisoning probably caused by Bacillus cereus. The intervention at critical points, inter-institution coordination and communication in time and with data between professionals (microbiologist, doctors, nurses, vets and epidemiologist) were decisive in solving the outbreak.

Aged↗