scholarly journals Changes in Bacterial Composition of Zucchini Flowers Exposed to Refrigeration Temperatures

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
F. Baruzzi ◽  
M. Cefola ◽  
A. Carito ◽  
S. Vanadia ◽  
N. Calabrese
Keyword(s):  
Growth Kinetics ◽  
Microbial Growth ◽  
Fruits And Vegetables ◽  
Bacterial Composition ◽  
Factors Affecting ◽  
Microbial Growth Kinetics ◽  
Main Factors ◽  
First Time ◽  
Spoilage Microorganisms

Microbial spoilage is one of the main factors affecting the quality of fresh fruits and vegetables, leading to off-flavor, fermented aroma, and tissue decay. The knowledge of microbial growth kinetics is essential for estimating a correct risk assessment associated with consuming raw vegetables and better managing the development of spoilage microorganisms. This study shows, for the first time, that only a part of total microbial community, originally present on fresh harvested female zucchini flowers, was able to adapt itself to refrigerated conditions. Through the study of microbial growth kinetics it was possible to isolate forty-four strains belonging to twenty-two species of the generaAcinetobacter, Arthrobacter, Bacillus, Enterobacter, Erwinia, Klebsiella, Pantoea, Pseudoclavibacter, Pseudomonas, Serratia, Staphylococcus,andWeissella, suggestingEnterobacteriaceaeas potentially responsible for pistil spoilage.

scholarly journals Bio-Electrochemical System Depollution Capabilities and Monitoring Applications: Models, Applicability, Advanced Bio-Based Concept for Predicting Pollutant Degradation and Microbial Growth Kinetics via Gene Regulation Modelling

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1038
Author(s):  
Argyro Tsipa ◽  
Constantina K. Varnava ◽  
Paola Grenni ◽  
Vincenzo Ferrara ◽  
Andrea Pietrelli
Keyword(s):  
Gene Regulation ◽  
Growth Kinetics ◽  
Microbial Fuel Cells ◽  
Growth Kinetic ◽  
Microbial Growth ◽  
Pollutant Removal ◽  
Enzyme Expression ◽  
Regulation Mechanisms ◽  
Microbial Growth Kinetics ◽  
Difficult Challenge

Microbial fuel cells (MFC) are an emerging technology for waste, wastewater and polluted soil treatment. In this manuscript, pollutants that can be treated using MFC systems producing energy are presented. Furthermore, the applicability of MFC in environmental monitoring is described. Common microbial species used, release of genome sequences, and gene regulation mechanisms, are discussed. However, although scaling-up is the key to improving MFC systems, it is still a difficult challenge. Mathematical models for MFCs are used for their design, control and optimization. Such models representing the system are presented here. In such comprehensive models, microbial growth kinetic approaches are essential to designing and predicting a biosystem. The empirical and unstructured Monod and Monod-type models, which are traditionally used, are also described here. Understanding and modelling of the gene regulatory network could be a solution for enhancing knowledge and designing more efficient MFC processes, useful for scaling it up. An advanced bio-based modelling concept connecting gene regulation modelling of specific metabolic pathways to microbial growth kinetic models is presented here; it enables a more accurate prediction and estimation of substrate biodegradation, microbial growth kinetics, and necessary gene and enzyme expression. The gene and enzyme expression prediction can also be used in synthetic and systems biology for process optimization. Moreover, various MFC applications as a bioreactor and bioremediator, and in soil pollutant removal and monitoring, are explored.

Solid-State Fermentation, Microbial Growth Kinetics

2014 ◽  
pp. 1-23
Author(s):  
David A. Mitchell ◽  
Deidre M. Stuart ◽  
Sibel Uludag-Demirer ◽  
Robert D. Tanner
Keyword(s):  
Solid State ◽  
Growth Kinetics ◽  
Solid State Fermentation ◽  
Microbial Growth ◽  
Microbial Growth Kinetics

scholarly journals Multifactorial parametric model for assessing and making organizational decisions to ensure the quality of construction

2019 ◽  
Vol 97 ◽  
pp. 03038
Author(s):  
Pavel Zhuravlev ◽  
Evgeniy Bachus ◽  
Irina Markova
Keyword(s):  
Parametric Model ◽  
Assessment Model ◽  
Regulatory Requirements ◽  
Factors Affecting ◽  
Construction Period ◽  
Regulatory Documents ◽  
Full Compliance ◽  
Main Factors ◽  
Capital Construction

As noted by a number of experts in the field of the quality of construction of capital construction objects, at present there are no industry-specific methods for assessing the quality of construction and installation works in construction. The quality assessment and acceptance of capital construction objects is carried out according to the criterion of compliance with the requirements established in the project documentation, the working documentation prepared on its basis and the requirements established in the regulatory documents. It should be noted that the more complex the object, the larger the construction volume, the longer the construction period of the object and the harder it is to achieve full compliance of the object with the established requirements due to the lack of a methodology for choosing organizational decisions, as well as changing regulatory requirements, technological variability, errors.The current situation necessitated the development of an assessment model and the adoption of organizational decisions to ensure the quality of construction. This article highlights and discusses the main factors affecting the quality of organizational decisions. A system for assessing the level of quality assurance of construction is proposed, taking into account the quality of organizational decisions and the main factors cited.

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