DEVELOPMENT OF A PRACTICAL METHOD TO EVALUATE THE EFFICACY OF POTASSIUM SORBATE AS A GERMINATION INHIBITOR OF PENICILLIUM DIGITATUM CONIDIA FOR POTENTIAL USE IN THE CITRUS SUPPLY CHAIN

2012 ◽  
pp. 327-333
Author(s):  
S. Potton ◽  
J. Cullum
2018 ◽  
Vol 200 ◽  
pp. 00016
Author(s):  
Radouane Lemghari ◽  
Chafik Okar ◽  
Driss Sarsri

The evaluation of a supply chain is a major priority of companies; it is a task that remains difficult due to the complexity of these systems [1]. This evaluation involves a selection of performance measurement indicators, which are appropriate to the management of this chain. It is then necessary to have a structured approach and adequate methodological tools [2]. Indeed, we propose in this paper a practical method that will model in the first place a Moroccan automotive supply chain, according to the SCOR® model (Supply Chain Operations Reference), proposed by the Supply Chain Council. This method will also identify at each level the appropriate indicators for the performance evaluation depending on the strategic vision. In this context our research problem is made, it is interested in the contribution of the business modelling to improve logistics performance. To the best knowledge of the authors, this is the first work that proposes a case study believed to be easy to understand, practical and suitable for the automotive sector. In short, this study is a real application leap to resolve the problematic unanswered of practical SCOR® model using an industrial application in the Moroccan automotive sector.


Author(s):  
Bemgba Bevan Nyakuma ◽  
Olagoke Oladokun

The chapter presents recent developments in the gasification of oil palm empty fruit bunches (EFB) through fluidized bed gasifiers. The bioenergy potential of oil palm EFB as an environmentally friendly biomass is presented. Furthermore, the chapter highlights the prospects of utilising biomass gasification technology as a practical method for valorising EFB. The successful development and deployment of gasification for oil palm EFB depends on a critical understanding of the fundamental theories of the chemical reactions, classification, and operational parameters of biomass gasifiers. Hence, the potential use of fluidized bed gasifiers for oil palm empty fruit bunches (EFB) is highlighted in detail. Next, the analysis of the fundamental theories, assumptions, and equations of fluidization critical to fluidized bed gasification of EFB is presented. The chapter concludes by highlighting the potential of oil palm EFB as a low-cost, abundant, lignocellulosic feedstock for valorisation through fluidized bed gasification.


1999 ◽  
Vol 62 (5) ◽  
pp. 541-542 ◽  
Author(s):  
B. MATAMOROS-LEÓN ◽  
A. ARGAIZ ◽  
A. LÓPEZ-MALO

The individual and combined effects of potassium sorbate and vanillin concentrations on the growth of Penicillium digitatum, P. glabrum, and P. italicum in potato dextrose agar adjusted to water activity 0.98 and pH 3.5 were evaluated. Inhibitory concentrations of potassium sorbate varied from 150 ppm for P. digitatum to 700 ppm for P. glabrum, and for vanillin from 1,100 ppm for P. digitatum and P. italicum and 1,300 ppm for P. glabrum. Fractional inhibitory concentration (FIC) isobolograms show curves deviated to the left of the additive line. Calculated FIC index varied from 0.60 to 0.84. FIC index as well as FIC isobolograms show synergistic effects on mold inhibition when vanillin and potassium sorbate are applied in combination.


2017 ◽  
Vol 18 (1) ◽  
pp. 175 ◽  
Author(s):  
Crina Saviuc ◽  
Bianca Ciubucă ◽  
Gabriela Dincă ◽  
Coralia Bleotu ◽  
Veronica Drumea ◽  
...  

The antibacterial and anti-inflammatory potential of natural, plant-derived compounds has been reported in many studies. Emerging evidence indicates that plant-derived essential oils and/or their major compounds may represent a plausible alternative treatment for acne, a prevalent skin disorder in both adolescent and adult populations. Therefore, the purpose of this study was to develop and subsequently analyze the antimicrobial activity of a new multi-agent, synergic formulation based on plant-derived antimicrobial compounds (i.e., eugenol, β-pinene, eucalyptol, and limonene) and anti-inflammatory agents for potential use in the topical treatment of acne and other skin infections. The optimal antimicrobial combinations selected in this study were eugenol/β-pinene/salicylic acid and eugenol/β-pinene/2-phenoxyethanol/potassium sorbate. The possible mechanisms of action revealed by flow cytometry were cellular permeabilization and inhibition of efflux pumps activity induced by concentrations corresponding to sub-minimal inhibitory (sub-MIC) values. The most active antimicrobial combination represented by salycilic acid/eugenol/β-pinene/2-phenoxyethanol/potassium sorbate was included in a cream base, which demonstrated thermodynamic stability and optimum microbiological characteristics.


2019 ◽  
Vol 16 (3) ◽  
pp. 462-472 ◽  
Author(s):  
Anna Lisa Junge

Goal: The aim is to present a literature review for identifying digital transformation technologies (DTT) for manufacturing and pointing out their capabilities and applications. Furthermore, the paper lays out an exploratory framework to depict the impact scope of the cases on logistics and supply chain management (L&SCM) processes. Design / Methodology / Approach: The identification of relevant DTTs and their capabilities is based on a systematic literature review. The exploratory framework builds upon Industry 4.0 concepts and frameworks as well as the conditions for sustainable digital artefacts. It is then related to cases found in the systematic literature review. Results: The results indicate that the DTT auto identification, additive manufacturing, and cloud technology lead to improvements concerning transparency efficiency, optimizing distribution distances and logistics resources in networks. The framework presents an avenue for assessing the impact scope and potentials of implementing DTT. Limitations of the investigation: The literature base limits the findings since it is built upon two databases and is restricted to articles published in English. The theoretically deduced framework accounts for the dimensions technologies, the SCOR model and RAMI architecture. The illustration is simplified but can be detailed according to the needs. It is not tested based on case studies and should therefore be applied in practice to further develop it. Practical implications: Practitioners gain insight into how to anchor potential use cases for more sustainable L&SCM processes in the framework. Originality / Value: This paper is the first to relate the capabilities of DTT to more sustainable L&SCM processes in manufacturing by means of a systematic literature review and link the findings to an exploratory framework.


2015 ◽  
Vol 24 (3) ◽  
pp. e039 ◽  
Author(s):  
Tatiana M. Pinho ◽  
A. Paulo Moreira ◽  
Germano Veiga ◽  
José Boaventura-Cunha

<p><em>Aim of study</em>: This work aims to provide an overview of Model Predictive Controllers (MPC) applications in supply chains, to describe the forest-based supply chain and to analyse the potential use and benefits of MPC in a case study concerning a biomass supply chain.</p><p><em>Area of study</em>: The proposed methods are being applied to a company located in Finland.</p><p><em>Material and methods</em>: Supply chains are complex systems where actions and partners’ coordination influence the whole system performance. The increase of competitiveness and need of quick responses to the costumers implies the use of efficient management techniques. The control theory, particularly MPC, has been successfully used as a supply chain management tool. MPC is able to deal with dynamic interactions between the partners and to globally optimize the supply chain performance in the presence of disturbances. However, as far as is authors’ knowledge, there are no applications of this methodology in the forest-based supply chains. This work proposes a control architecture to improve the performance of the forest supply chain. The controller is based on prediction models which are able to simulate the system and deal with disturbances.</p><p><em>Main results</em>: The preliminary results enable to evaluate the impacts of disturbances in the supply chain. Thus, it is possible to react beforehand, controlling the schedules and tasks’ allocation, or alert the planning level in order to generate a new plan.</p><p><em>Research highlights</em>:   Overview of MPC applications in supply chains; forest-based supply chain description; case study presentation: wood biomass supply chain for energy production; MPC architecture proposal to decrease the operation times.</p><p><strong>Keywords</strong>: biomass; forest; Model Predictive Control; planning; supply chain.</p>


2013 ◽  
Vol 10 (4) ◽  
pp. 291-296
Author(s):  
John Vogt ◽  
Wessel Pienaar

The total logistics cost (TLC) is the traditional expenditure-approach method of calculating the logistics cost of a supply chain as the goods are moved from the source to the end destination. This method uses the sum of all expenditure associated with the movement of goods (i.e. transport and handling), in-transit storage of goods and the generation of information to enable these movements to occur. As logistics chains become more complex and longer, calculating the TLC becomes increasingly difficult. The question that this paper answers is how to define and calculate the four logistics supply chain economic, or opportunity, cost factors of (1) physical movement (i.e. transport and handling); (2) in-transit cost of holding the stock while not available to the end customer; (3) the cost of the information needed to enable the movement; and (4) the effect of the reliability of the logistics chain on the safety stock. A practical method is developed whereby the TLC, incorporating these four aspects, is shown for a hypothetical movement. The costs highlight the total logistics opportunity cost (TLOC) for a multiple-leg voyage and the costs associated with all four aspects of the movement. The most attractive logistics supply chain would be the one with the lowest TLOC, and the choice can be made with confidence, as it incorporates the full economic logistics cost of the chain. (‘Economic cost’ and ‘opportunity cost’ are terms used synonymously in this work.)


Sign in / Sign up

Export Citation Format

Share Document