Comparative metabolic study of planktonic and sessile cells in Salmonella Enteritidis ATCC 13076: Elucidating metabolic pathways driving biofilm formation.

Microorganisms tend to accumulate on surfaces, forming aggregates such as biofilms, which grant them resistance to various environmental stressors and antimicrobial agents. This ability has hindered the effective treatment of diseases caused by pathogenic microorganisms, including Salmonella, which is responsible for a significant number of deaths worldwide. This study aimed to compare the metabolic profiles of planktonic and sessile cells of Salmonella Enteritidis using a metabolomics approach.

Achatina fulica haemocyanin-derived peptides as novel antimicrobial agents.

Haemocyanin-derived peptides were previously found in semi-purified fractions of mucus secretion from the snail Achatina fulica, which exhibited an inhibitory effect on Staphylococcus aureus strains. Here, an in silico rational design strategy was employed to generate new antimicrobial peptides (AMPs) from A. fulica haemocyanin-derived peptides (AfH).

Evaluation of the psychometric properties of the family adaptability and cohesion scale (FACES III) through item response theory models in students from Chile and Colombia.

Background: A psychometric study of the Family Adaptability and Cohesion Scale (FACES III) has been conducted in Spanish-speaking countries from the perspective of the classical test theory. However, this approach has limitations that affect the psychometric understanding of this scale.

Objective: Accordingly, this study used the item response theory to investigate the psychometric performance of the items.

Untargeted Metabolomics Analysis for Studying Differences in High-Quality Colombian Cocoa Beans.

Colombia is a producer of fine cocoa, according to the International Cocoa Organization; however, most of its exports are in the ordinary cocoa category. To remedy this situation, several national organizations are working to create technological platforms for small producers to certify the quality of their beans. The objective of this study was to identify differential chemical markers in 36 cocoa bean samples from five Colombian departments and associate them with cocoa quality properties.

Untargeted Metabolomics for Unraveling the Metabolic Changes in Planktonic and Sessile Cells of Enteritidis ATCC 13076 after Treatment with Essential Oil.

Nontyphoidal species are one of the main bacterial causes of foodborne diseases, causing a public health problem. In addition, the ability to form biofilms, multiresistance to traditional drugs, and the absence of effective therapies against these microorganisms are some of the principal reasons for the increase in bacterial diseases. In this study, the anti-biofilm activity of twenty essential oils (EOs) on serovar Enteritidis ATCC 13076 was evaluated, as well as the metabolic changes caused by thymol chemotype EO (LOT-II) on planktonic and sessile cells.