Publications by authors named "Aristide L M Kognou"
Article Synopsis
- Most marine microalgae are usually grown in coastal areas, but this 185-day study successfully cultivated Nannochloropsis oceanica inland using new photobioreactors (PBRs) of varying sizes.
- A 700-liter PBR showed better adaptability to seasonal changes and produced nearly equal lipid content compared to smaller 150-liter PBRs, suggesting good performance in colder temperatures.
- The study found that the average production cost of N. oceanica was about $11.89 per kg, which is significantly lower than the market price of $20.19 per kg; smaller PBRs were noted to be more cost-effective for energy prices.
Article Synopsis
- * Optimal conditions for enzyme production differ between the two bacteria; Cellulomonas sp. works best at room temperature (25-26℃) and pH 7 while Bacillus sp. prefers room temperature and a higher pH of 10, yielding distinct pectinase activities.
- * Agro-waste substrates like orange peel and barley straw are effective for enzyme production, with orange peel being ideal for pectinase and cellulase, whereas barley
Article Synopsis
- - Soil bacteria can survive harsh conditions and produce harmful factors through processes like autoaggregation, biofilm formation, and resistance to antibiotics and heavy metals.
- - This study examined six cellulolytic bacteria from soil for their virulence traits, resistance to antibiotics/heavy metals, and ability to form biofilms, revealing that some strains showed significant protective abilities.
- - Although certain strains demonstrated virulence characteristics, further genetic research is needed to fully understand the mechanisms behind their resistance and pathogenic potential.
Modern society has a great challenge to decrease waste and minimize the adverse effects of wastes on the economy, environment, and individual health. Thus, this study focuses on the use of eight agro-wastes (banana peel, barley straw, canola straw, pomegranate peel, orange peel, pumpkin pulp+seeds, maple leaf, and brewer's spent grains) by a novel bacterium (Streptomyces thermocarboxydus) for enzymes production. Further, the study explored the subsequent degradation of those wastes by the bacterium.
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- The study identified a bacterium capable of producing multiple enzymes, including pectinase, that was isolated from a contaminated broth through 16S rDNA sequence analysis.
- The bacterium showed the best enzyme production using orange peel as a substrate, achieving maximum activity levels under specific optimal conditions (40°C, 24-hour incubation, and certain concentrations).
- Additionally, the bacterium demonstrated potential for producing bacterial lipids, making it a promising candidate for environmental waste management and biofuel production.