Efficacy of chlorine and heat treatment in killing Salmonella stanley inoculated onto alfalfa seeds and growth and survival of the pathogen during sprouting and storage
Article Abstract:
Treatment of alfalfa seeds containing Salmonella stanley with a 2,000- to 4,000-micro-g/ml chlorine (Cl) solution decreases the bacterial content without affecting seed germination. However, the bacterial content may increase when the seeds sprout. Dipping the seeds in a solution containing 290 micro-g of Cl per ml significantly decreases the bacterial content while treatment with a solution of 1,010 micro-g of Cl per ml has no further effect. Heat treatment at 57-60 degrees C for 5 mins kills bacteria without affecting germination while treatment for 10 mins inhibits germination.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Effects of nisin and temperature on survival, growth, and enterotoxin production characteristics of psychotropic Bacillus cereus in beef gravy
Article Abstract:
The growth of four strains of psychotropic Bacillus cereus strains were cultured in a brain heart infusion (BHI) broth and beef gravy with nisin supplementation. The repair of cytoplasmic membrane dysfunction in heat injured Bacillus cereus cells was inhibited by nisin which acted as a voltage-dependent polarizer that prevented the restoration of membrane integrity. The growth and enterotoxin synthesis by Bacillus cereus in BHI was also attenuated by nisin compared to microbial cultures in beef gravy.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Evaluation of chemicals for restricting colony spreading by a xerophilic mold, Eurotium amstelodami, on dichloran-18% glycerol agar
Article Abstract:
Twenty chemicals were tested to determine their effectivity in restricting colony speading of four strains of Eurotium amstelodami on dichloran-18% glycerol agar. Of the chemicals, the most effective were Triton X-100, Triton X-301, Tergitol NP-7 and Tergitol 15-S-3 at 200 micrograms per milliliter, and 1,000 micrograms of sodium deoxycholate, 1 microgram of iprodione, 0.1 microgram of propiconazole and 0.01 microgram of Maxim per milliliter.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Thermal inactivation of susceptible and multiantimicrobial-resistant Salmonella strains grown in the absence or presence of glucose
- Abstracts: Bacterial hydrolysis of protein and methylated proteins and its implicationsfor studies of protein degradation in aquatic systems
- Abstracts: Incubation of water samples containing amoebae improves detection of Legionellae by culture method. Factors stimulating propagation of Legionellae in cooling tower water
- Abstracts: Genetic and phenotypic diversity of Bacillus polymyxa in soil and in the wheat rhizosphere. Rapid in situ hybridization technique using 16S rRNA segments for detecting and differentiating the closely related gram-positive organisms Bacillus polymyxa and Bacillus macerans
- Abstracts: Heavy metals alter the electrokinetic properties of bacteria, yeasts, and clay minerals. Transformation of Bacillus subtilis by DNA bound on montmorillonite and effect of DNase on the transforming ability of bound DNA