A methodology to upgrade legacy industrial systems to meet safety regulations

The study focuses on the procedure for appointing and conducting expert research in cases of crimes related to violations of labor protection and safety rules. The author out lines the range of research tasks in this area, lists the types of expertise that are widely used in this category of criminal cases. Based on the analysis of legal norms regulating the procedure for the appointment and conduct of forensic examinations, the author comes to the conclusion that the procedural legislation contains a significant number of General approaches to the appointment and conduct of expertise (including in the field of investigation of crimes related to violations of labor protection and safety rules). The specificity of expert research on this category of criminal cases is that in the framework of establishing the actual circumstances of the incident, it is often necessary to conduct several examinations (complex expert studies), taking into account the specifics of specific production processes at the enterprise.

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The role of (bio)surfactant sorption in promoting the bioavailability of nutrients localized at the solid-water interface

Water Science & Technology ◽

10.2166/wst.1999.0336 ◽

1999 ◽

Vol 39 (7) ◽

pp. 91-98 ◽

Cited By ~ 3

Author(s):

Ryan N. Jordan ◽

Eric P. Nichols ◽

Alfred B. Cunningham

Keyword(s):

Mass Transfer ◽

Cell Membrane ◽

Substrate Concentration ◽

Water Interface ◽

Industrial Systems ◽

Solid Liquid Interface ◽

Solid Liquid ◽

Surfactant Sorption

Bioavailability is herein defined as the accessibility of a substrate by a microorganism. Further, bioavailability is governed by (1) the substrate concentration that the cell membrane “sees,” (i.e., the “directly bioavailable” pool) as well as (2) the rate of mass transfer from potentially bioavailable (e.g., nonaqueous) phases to the directly bioavailable (e.g., aqueous) phase. Mechanisms by which sorbed (bio)surfactants influence these two processes are discussed. We propose the hypothesis that the sorption of (bio)surfactants at the solid-liquid interface is partially responsible for the increased bioavailability of surface-bound nutrients, and offer this as a basis for suggesting the development of engineered in-situ bioremediation technologies that take advantage of low (bio)surfactant concentrations. In addition, other industrial systems where bioavailability phenomena should be considered are addressed.

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Impacts of Vending Practices on the Microbiological Quality of Bread in the Ojoo Area of Ibadan, Oyo-State, Nigeria

Current Nutrition & Food Science ◽

10.2174/1573401313666171016162832 ◽

2019 ◽

Vol 15 (1) ◽

pp. 31-39

Author(s):

Oluwadara Oluwaseun Alegbeleye ◽

Wasiu Akinloye Oyebisi Afolabi ◽

Beatrice Oluwatoyin Opeolu ◽

Amin Mousavi Khaneghah

Keyword(s):

Food Safety ◽

Microbiological Quality ◽

Bacillus Species ◽

Potential Hazard ◽

Safety Regulations ◽

Bacillus Flexus ◽

Microbiological Methods ◽

Key Factor ◽

Quality Of Food

Background: Bacterial counts in ready-to-eat foods are a key factor in assessing the microbiological quality and safety of food. Periodic assessment of the microbiological quality of food is necessary to develop a robust database and help to ensure food safety. Methods: The bacterial contamination of a total of 336 bread samples collected from two bakeries and 10 vendors in Ojoo Area of Ibadan, Oyo-State, Nigeria (December 2014 -June 2015) was evaluated. The microbiological quality of the bread loaves was investigated using standard microbiological methods (morphological, phenotypic and molecular characterization). Results: The results showed that the number of contaminated samples among the vended bread samples was higher than the bakery bread samples and can be summarized as Bacillus megaterium (4.30%), Staphylococcus arlettae (0.005%), Staphylococcus saprophyticus (2.78%), Citrobacter freundii (2.40%), Bacillus flexus (1.64%), Bacillus species (49.59%), Pseudomonas aeruginosa (4.12%), Pseudomonas fluorescens (0.92%), Pseudomonas species (0.045%), Escherichia coli (30.44%) Klebsiella sp. (0.040%) and Aeromonas hydrophila (3.72%). Conclusion: The findings demonstrate that the bread samples which become contaminated after transport and handling can be considered a potential hazard to human health in the area. More stringent adherence to food safety regulations should be encouraged and enforced by the appropriate authorities. The findings of this study may be adopted to improve the hygienic conditions of bread distribution chain in the area as well as in other regions of the World.

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