Identification and Growth Characterization of a Novel Strain of Isolated From Soya Paste.

The nonpathogenic yeast (Sb) has beneficial effects on the human intestine, and thus has been prescribed as probiotics for the treatment of diarrhea and gastrointestinal diseases. This is the only commercialized yeast with the purpose of being used as human medicine. Currently, little is known about their multiple mechanisms of actions.

Evaluation of microplate immunocapture method for detection of Vibrio cholerae, Salmonella Typhi and Shigella flexneri from food.

Background: Improved methods with better separation and concentration ability for detection of foodborne pathogens are in constant need. The aim of this study was to evaluate microplate immunocapture (IC) method for detection of Salmonella Typhi, Shigella flexneri and Vibrio cholerae from food samples to provide a better alternative to conventional culture based methods.

Results: The IC method was optimized for incubation time, bacterial concentration, and capture efficiency.

Antimicrobial and antioxidant activities of Saccharomyces cerevisiae IFST062013, a potential probiotic.

Background: Probiotic yeast has become a field of interest to scientists in recent years.

Methods: Conventional cultural method was employed to isolate and identify yeast and standard methods were used to determine different probiotic attributes, antimicrobial and antioxidant properties.

Results: This study reports potential probiotic properties of a strain of S.

Characterization of aflatoxin producing Aspergillus flavus from food and feed samples.

Aspergillus flavus is one of the major producers of aflatoxin and can contaminate wide range of agricultural commodities either in field or in storage. 15 presumptive Aspergillus flavus has been isolated from 30 feed and grain samples. All the isolates were morphologically similar to Aspergillus flavus type strains.

Stress tolerant virulent strains of Cronobacter sakazakii from food.

Background: Cronobacter sakazakii is considered as an emerging foodborne pathogen. The aim of this study was to isolate and characterize virulent strains of Cronobacter sakazakii from food samples of Bangladesh.

Result: Six (6) Cronobacter sakazakii was isolated and identified from 54 food samples on the basis of biochemical characteristics, sugar fermentation, SDS-PAGE of whole cell protein, plasmid profile and PCR of Cronobacter spp.

Multiplex PCR (polymerase chain reaction) assay for detection of E. coli O157:H7, Salmonella sp., Vibrio cholerae and Vibrio parahaemolyticus in spiked shrimps (Penaeus monodon).

The coastal aquaculture mainly shrimps constitute major export sector in Bangladesh and is increasingly shaped by international trade conditions and by national responses to those stringent quality and safety standards. PCR based validated methods for detection of major bacterial pathogens in shrimp might be very useful tool for ensuring quality and safety standards of exportable shrimps. The objective of this study was to evaluate overall performance (sensitivity and specificity) of the multiplex PCR assay for detection of Vibrio cholerae, Vibrio parahaemolyticus, Salmonella sp.

Influence of storage conditions of apples on growth and patulin production by Penicillium expansum.

Penicillium expansum causes blue mould rot, a serious post-harvest disease of apples, and is the main producer of the mycotoxin patulin. The present study aimed to determine the influence of storage conditions (i.e.

Modeling the effect of temperature on the growth rate and lag phase of Penicillium expansum in apples.

The objective of the present study was to develop validated models that describe the effect of storage temperature on the growth rate and lag phase of six Penicillium expansum strains. The growth of the selected strains was therefore studied on Apple Puree Agar Medium (APAM) at 30, 25, 16, 10, 4 and 2 degrees C. Growth rates and lag phases were estimated using linear regression.