Category: Biotechnology

Bacteriocin-based strategies for food biopreservation Bacteriocins are ribosomally-synthesized peptides or proteins with antimicrobial activity, produced by different groups of bacteria. Many lactic acid bacteria (LAB) produce bacteriocins with rather broad spectra of inhibition. Several LAB bacteriocins offer potential applications in food preservation, and the use of bacteriocins in the food industry can help to reduce […]

Why Are Ruminal Cellulolytic Bacteria Unable to Digest Cellulose at Low pH? Ruminant animals depend on cellulolytic ruminal bacteria to digest cellulose, but these bacteria cannot resist the low ruminal pH that modern feeding practices can create. Because the cellulolytic bacteria cannot grow on cellobiose at low pH, pH sensitivity is a general aspect of […]

Significance of path coefficient analysis in determining the nature of character association Interrelationships among production characters were determined both by simple correlation and path coefficient analyses, using ecogeographically diverse spring wheat genotypes. Simple correlation analysis indicated that kernel weight correlated positively with plant height and negatively with heading time. Also spike number and kernel weight […]

Molecular methods for the assessment of bacterial viability A significant number of pathogenic microorganisms can be found in environmental reservoirs (air, water, soil). It is important to assess the viability status of these organisms to determine whether they pose a threat to public health. Classical methods for determining viability are time consuming. Hence, molecular methods […]

Microbial biotechnology  For thousands of years, microorganisms have been used to supply products such as bread, beer and wine. A second phase of traditional microbial biotechnology began during World War I and resulted in the development of the acetone-butanol and glycerol fermentations, followed by processes yielding, for example, citric acid, vitamins and antibiotics. In the […]

Cell and tissue culture The introduction of tissue culture methodology to the biological sciences ushered in a new era of rapid and exciting advances in the fields of virology, morphogenesis, cytology, cytochemistry, toxicology and molecular biology. The widespread use of tissue culture is in no small way due to Dr. Paul’s book, which provided not […]