Screening of alkali‐assisted storage conditions to define the operational window of deacetylation within storage systems in the bioenergy supply chain

2021 ◽  
Author(s):  
Lynn M. Wendt ◽  
Bradley D. Wahlen ◽  
Michelle R. Walton ◽  
Jason A. Nguyen ◽  
Yingqian Lin ◽  
...  
Keyword(s):  
Supply Chain ◽  
Storage Systems ◽  
Storage Conditions ◽  
Operational Window

scholarly journals A simulation model to investigate impacts of facilitating quality data within organic fresh food supply chains

2019 ◽  
Author(s):  
Magdalena Leithner ◽  
Christian Fikar
Keyword(s):  
Supply Chain ◽  
Fruits And Vegetables ◽  
Organic Food ◽  
Storage Conditions ◽  
Quality Data ◽  
Food Supply Chains ◽  
Fresh Food ◽  
Simulation Based ◽  
And Storage ◽  
Rural Production

Abstract Demand for and production of organic fresh food play an increasing role worldwide. As a result, a growing amount of fresh fruits and vegetables has to be transported from predominantly rural production regions to customers mostly located in urban ones. Specific handling and storage conditions need to be respected along the entire supply chain to maintain high quality and product value. To support organic food logistics operations, this work investigates benefits of facilitating real-time product data along delivery and storage processes. By the development of a simulation-based decision support system, sustainable deliveries of organic food from farms to retail stores are investigated. Generic keeping quality models are integrated to observe impacts of varying storage temperatures on food quality and losses over time. Computational experiments study a regional supply chain of organic strawberries in Lower Austria and Vienna. Results indicate that the consideration of shelf life data in supply chain decisions allow one to reduce food losses and further enables shifting surplus inventory to alternative distribution channels.

scholarly journals AI-based soft-sensor for shelf life prediction of ‘Kesar’ mango

2021 ◽  
Vol 3 (6) ◽  
Author(s):  
Jayita Dutta ◽  
Parijat Deshpande ◽  
Beena Rai
Keyword(s):  
Supply Chain ◽  
Shelf Life ◽  
Respiration Rate ◽  
Storage Conditions ◽  
Soft Sensor ◽  
Economic Losses ◽  
Support Vector ◽  
List Type ◽  
Support Vector Regression Model ◽  
Dynamic Decisions

AbstractThis paper presents prediction of shelf-life of ‘Kesar’ cultivar of mangoes stored under specified conditions based on their respiration rate and ripeness levels. A deep-CNN was fine-tuned on 1524 image data of mangoes stored under different conditions to classify the ripeness levels of mangoes as ‘unripe’, ‘early-ripe’, ‘partially-ripe’ and ‘ideally-ripe’. CO2 respiration rate (RRCO2) was further calculated using principle of enzyme kinetics to establish a correlation between RRCO2 and ripeness levels. A Support Vector Regression model was employed to predict the shelf life and ripeness levels of mangoes under different storage conditions, thereby creating an AI based soft-sensor. The developed methodology can be used for other climacteric fruits besides mangoes. This solution can be used by producers and distributors for post-harvest handling of climacteric fruits like mango. It will also aid retailers in taking dynamic decisions with respect to pricing, logistics and storage conditions to be maintained to get the desired ripening rate, thus, contributing to reduction of wastage of fruits and subsequent economic losses.Article highlights Variation in CO2 respiration rate of ‘Kesar’ mangoes over different maturity stages were observed under different supply chain scenarios simulated in lab environment AI models were developed based on respiration rate and ripeness levels for prediction of shelf life of mangoes under different supply chain scenarios. These models once deployed helps all stake holders in fruit supply chain to take dynamic decisions such as repricing, recycling and repurposing based on the predicted shelf life thus minimizing wastage and maximizing profit.

Modeling and analysing storage systems in agricultural biomass supply chain for cellulosic ethanol production

2013 ◽  
Vol 102 ◽  
pp. 840-849 ◽  
Author(s):  
Mahmood Ebadian ◽  
Taraneh Sowlati ◽  
Shahab Sokhansanj ◽  
Lawrence Townley-Smith ◽  
Mark Stumborg
Keyword(s):  
Supply Chain ◽  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Storage Systems ◽  
Agricultural Biomass ◽  
Biomass Supply

scholarly journals Influences of drying temperature and storage conditions for preserving the quality of maize postharvest on laboratory and field scales

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Paulo Carteri Coradi ◽  
Vanessa Maldaner ◽  
Éverton Lutz ◽  
Paulo Vinícius da Silva Daí ◽  
Paulo Eduardo Teodoro
Keyword(s):  
Grain Quality ◽  
Storage Systems ◽  
Storage Period ◽  
Storage Conditions ◽  
Drying Temperature ◽  
Grain Moisture ◽  
Storage Methods ◽  
Maize Grain ◽  
And Storage

AbstractDrying and storage methods are fundamental for maintaining the grain quality until processing. Therefore, the aim of this study was to evaluate the associations of the drying temperature with storage systems and conditions as a strategy for preserving the quality of maize grain postharvest on laboratory and field scales. An increase in temperature accelerated the reduction in grain moisture, but increased the deterioration. The wetting during the storage period reduced the grain quality. Hermetic and aerated storage systems maintained the chemical quality of the grains. The control with healthy and whole corn dried at 80 °C and stored in silos with natural aeration provided a satisfactory quality, equivalent to those of controlled drying and storage under airtight conditions and at low temperatures. Different conditions of drying and storage of corn on the laboratory and field scales were evaluated, which provides an appropriate management of these operations to maintain the grain quality.

scholarly journals Superfruit in the Niche—Underutilized Sea Buckthorn in Gilgit-Baltistan, Pakistan

2019 ◽  
Vol 11 (20) ◽  
pp. 5840
Author(s):  
Muhammad Arslan Nawaz ◽  
Asif Ali Khan ◽  
Usman Khalid ◽  
Andreas Buerkert ◽  
Martin Wiehle
Keyword(s):  
Supply Chain ◽  
Storage Conditions ◽  
Sea Buckthorn ◽  
Market Potential ◽  
Harvest Management ◽  
Poor Households ◽  
Comprehensive Information ◽  
Sun And Shade ◽  
Drying Conditions ◽  
Gilgit Baltistan

Sea buckthorn is a medicinal plant occurring throughout the temperate regions of the northern hemisphere. Considered as a “superfood” given the nutritional properties of its berries, the latter have a large international market potential, particularly in China and Europe. Although sea buckthorn grows widespread in northern Pakistan, it is a neglected species there. Fruit marketing is severely hampered by low raw product quality, varying prices, and low local demand. During 2017–2018 a total of 111 collectors and 17 commission agents were interviewed from Gilgit-Baltistan, Pakistan using semi-structured questionnaires. The results provide comprehensive information about the current situation from collection to post-harvest management of sea buckthorn fruits including the analysis of vitamin C under different sun and shade drying conditions. The findings are complemented by an analysis of the underlying supply chain. Fruit sale prices were low for the collectors (1.82 US$ kg−1) since mostly poor households are involved in the harvest and sale. Traditional sun drying and storage conditions were inappropriate resulting in a decrease of chemical fruit quality and thus negatively affecting the sales price of produce. Supply chain analyses showed that the non-coordination among actors and lack of infrastructure affect the efficiency of the targeted sea buckthorn production at large. The study also shows the urgent need to set appropriate food quality standards, to increase communication among stakeholders, and to intensify training offers especially for collectors of sea buckthorn fruits.

scholarly journals The Potential of Depleted Oil Reservoirs for High-Temperature Storage Systems

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6510
Author(s):  
Kai Stricker ◽  
Jens C. Grimmer ◽  
Robert Egert ◽  
Judith Bremer ◽  
Maziar Gholami Korzani ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Energy ◽  
Storage Capacity ◽  
Storage Systems ◽  
Storage Conditions ◽  
Oil Reservoirs ◽  
Upper Rhine Graben ◽  
Operational Conditions ◽  
Temperature Excess ◽  
Storage Potential

HT-ATES (high-temperature aquifer thermal energy storage) systems are a future option to shift large amounts of high-temperature excess heat from summer to winter using the deep underground. Among others, water-bearing reservoirs in former hydrocarbon formations show favorable storage conditions for HT-ATES locations. This study characterizes these reservoirs in the Upper Rhine Graben (URG) and quantifies their heat storage potential numerically. Assuming a doublet system with seasonal injection and production cycles, injection at 140 °C in a typical 70 °C reservoir leads to an annual storage capacity of up to 12 GWh and significant recovery efficiencies increasing up to 82% after ten years of operation. Our numerical modeling-based sensitivity analysis of operational conditions identifies the specific underground conditions as well as drilling configuration (horizontal/vertical) as the most influencing parameters. With about 90% of the investigated reservoirs in the URG transferable into HT-ATES, our analyses reveal a large storage potential of these well-explored oil fields. In summary, it points to a total storage capacity in depleted oil reservoirs of approximately 10 TWh a−1, which is a considerable portion of the thermal energy needs in this area.

scholarly journals Development of a Controlled-Ventilation Box for Modified-Atmosphere Storage of Fresh Produce

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2965
Author(s):  
Nandita Keshri ◽  
Ingo Truppel ◽  
Manfred Linke ◽  
Martin Geyer ◽  
Cornelia Weltzien ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Supply Chain ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Fresh Produce ◽  
Storage Conditions ◽  
Modified Atmosphere ◽  
Modified Atmosphere Storage ◽  
Atmosphere Storage ◽  
Wall Openings

Adjusting beneficial gas concentrations in real time in response to changing storage conditions is important for fresh produce, especially throughout the supply chain when temperature abuse occurs frequently. In this study, a controlled-ventilated box for bulk transportation of fresh produce was demonstrated and tested under variable temperatures. The presented system comprised a rigid container with a miniature blower installed in the opening of its wall for facilitating the gas exchange and an additional wall opening with a metal tube protruding into the inner container’s space. The in-package atmosphere was formed by the balance between the respiratory activity of the produce and the influx of fresh air through the wall openings, regulated by switching the blower ON or OFF. The mass transfer coefficient for metal tubes of different dimensions was measured under modified atmosphere featuring 15% CO2 and 5% O2 at 10 °C. The addition of an air blower increased the mass transfer coefficient by at least 100 times. A further storage trial with cherries was successfully performed at 10 °C and 20 °C. The demonstrated trial featured some significant inputs to increase the knowledge about better storage of fresh produce throughout the supply chain and storage.

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