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Rozprawy doktorskie na temat „Post harvest technologies”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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Sprawdź 19 najlepszych rozpraw doktorskich naukowych na temat „Post harvest technologies”.

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1

Tuckey, Nicholas Pierre Lemieux. "Technologies for tissue preservation: the role of endogenous and exogenous antioxidants in preserving tissue function in chinook salmon, Oncorhynchus tshawytscha." Thesis, University of Canterbury. Biological Sciences, 2008. http://hdl.handle.net/10092/1510.

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The seafood industry is of considerable importance to both the New Zealand and global economies and therefore tissue preservation technologies that increase product quality and/or prolong shelf life have the potential to add significant value. Technologies for maintaining the viability of isolated tissues also have a wide range of other medical and industrial applications. This thesis examines the relationship between metabolic function, oxidation and cell death and the resulting stability of the non-viable tissues during long term storage in chinook salmon (Oncorhynchus tshawytscha) red and w

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Dudley, Graham David. "Political aspects of geographical information technologies with examples from imperial and post-independence India." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0004/NQ30602.pdf.

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Sinkora, Miarka. "Quels impacts des facteurs agronomiques et technologiques sur les déterminants biologiques de la texture des purées de tomates ? : Focus sur les variétés, la réduction des intrants au champ et l’itinéraire technologique à l’usine." Electronic Thesis or Diss., Avignon, 2022. http://www.theses.fr/2022AVIG0608.

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La tomate est un des fruits les plus consommés au monde, reconnu pour ses qualités nutritionnelles, et en particulier sa forte teneur en caroténoïdes. Le changement climatique et les sècheresses qu’il engendre amènent à repenser les méthodes de production, en diminuant les intrants. Dans le cas de la tomate d’industrie, destinée à la transformation, une approche intégrée depuis le champ jusqu’à la purée est nécessaire pour définir les effets des conduites à bas intrants sur les fruits et les purées de tomate, mais aussi leur interaction avec le procédé de transformation et la variété. Nous avo

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Misran, Azizah. "Evaluation of Post Harvest Technologies for Improving Strawberry Fruit Quality." Thesis, 2013. http://hdl.handle.net/10214/6755.

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Fragaria ananassa, generally known as strawberry is a nutritious fruit that is rich in polyphenols and widely consumed as part of a healthy diet. Anthocyanins have been found to be the main group of phenolic components present in strawberry with pelargonidin-3-glucoside as the major component in all strawberry cultivars studied. The main volatile component has been identified as caryophyllene oxide, a sesquiterpene compound that was present abundantly in all cultivars. The effect of preharvest spray applications of a formulation containing hexanal which is known to enhance membrane preservatio

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Fernandes, Luana. "Effect of several post-harvest technologies on the food quality and safety of edible flowers." Doctoral thesis, 2019. http://hdl.handle.net/10773/25648.

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Edible flowers have been used in food since ancient times. Currently, their consumption has increased in less traditional countries in what regards this practice, as a result of the growth and development of gastronomic market and by the gourmet chefs, who begin to use edible flowers in their dishes, due to their beauty and taste. However, it is a very perishable product, whose quality and safety need to be guaranteed. In this order, the main objective of the present work was to test several post-harvest technologies (separately and combined) to different edible flowers species, accordi

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(9838247), Phul Subedi. "Non-invasive assessment of fruit: Attributes other than sweetness." Thesis, 2007. https://figshare.com/articles/thesis/Non-invasive_assessment_of_fruit_Attributes_other_than_sweetness/13454954.

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Fresh fruit eating quality, as defined by taste, texture (mouth feel) and smell, can be indexed by a number of attributes, including total soluble solids (TSS), total titratable acidity (TTA), firmness and aroma. Eating quality is further defined by a range of internal defects (e.g. dryness defect in mandarin). Available technologies for non-invasive assessment of these attributes are reviewed. The two technologies which have reached a stage of commercial adoption by the fruit industry are short wave near infrared spectroscopy (SWNIRS) and firmness assessment using impact or acoustic based tec

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(9822500), Tika Neupane. "Improving predictability of time to harvest and yield of field grown tomato crops." Thesis, 2016. https://figshare.com/articles/thesis/Improving_predictability_of_time_to_harvest_and_yield_of_field_grown_tomato_crops/13387178.

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Accurate predictions of the timing of harvest and crop yield are of major benefit to large scale commercial tomato growers as they support efficient utilisation of resources and enable planting schedules to be managed so that there is a regular supply of product to the market. The predictive tools available to field tomato growers are limited as most tomato crop models have been developed for greenhouse conditions and indeterminate tomato cultivars. As the success of a crop yield forecasting system strongly depends on the crop simulation models ability to quantify the influence of weather and

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East, Andrew Richard. "The influence of breaks in optimal storage conditions on "Cripps Pink" apple physiology and quality : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Food Technology at Massey University, Palmerston North, New Zealand." 2006. http://hdl.handle.net/10179/727.

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Apples stored onshore in Australia and New Zealand, are maintained at optimal storage conditions with the aid of low temperatures; controlled atmospheres (CA) and new technologies that retard the production or effect of ethylene (AVG and 1-MCP respectively). These technologies allow distribution of the highest quality apples to local and export markets on a year round basis. However, during distribution, maintenance of optimal storage conditions may be lost due to refrigeration system breakdown, operational constraints or management decisions. This thesis quantifies the influence of commercial

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(9834095), Deepak Sharma Paudel. "Grain quality of rice (Oryza sativa L.) genotypes grown under aerobic and rainfed production environments in Queensland, Australia." Thesis, 2018. https://figshare.com/articles/thesis/Grain_quality_of_rice_Oryza_sativa_L_genotypes_grown_under_aerobic_and_rainfed_production_environments_in_Queensland_Australia/13445642.

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The Australian rice industry faces tremendous pressure for incremental increase in water use efficiency. Rainfed (RF) rice production could provide opportunities for diversifying the options for the rice industry to address the issue of water shortage. Rice varieties for RF production need to be developed to extend the rice industry to Australian wet-tropical regions. Achieving economic yields and matching grain quality to market standards are some of the challenges for RF rice production. Thirteen RF rice genotypes obtained from Australian Agricultural Technologies Limited (AAT) were evaluate

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(9895838), M. Al Farooque. "The problems of transporting and packaging of fruits and vegetables in Bangladesh." Thesis, 2007. https://figshare.com/articles/thesis/The_problems_of_transporting_and_packaging_of_fruits_and_vegetables_in_Bangladesh/13458839.

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Bangladesh, basically an agricultural country, is gradually emerging into the international market with fresh agricultural produce. In order to compete in the market, standardization of the produce and packages is essential. In the research undertaken, the packaging status of fresh horticultural produce, and past, present and future practices of packaging and transporting fresh fruits and vegetables were reviewed. This investigation covered: methods of maintaining the quality of fresh fruits and vegetables; scientifically developed packaging materials; designing of appropriate methods of stora

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(9826889), Arthur Pinkney. "Real-time scheduling of sugar cane transport." Thesis, 2011. https://figshare.com/articles/thesis/Real-time_scheduling_of_sugar_cane_transport/13461767.

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"The Cane Railway Scheduling Problem (CRSP) is to design a set of locomotive runs that supply the sugar factory with cane to crush, and the harvesting contractors with empty bins to fill with cane. Cane transport is the link between the harvesting and processing sectors of the sugar industry and its impact on both sectors must be considered. CRSP is significant problem for the sugar industry ... This research develops a real-time dynamic scheduling system (RTSS) that removes many of the assumptions and handles uncertainty, and produces schedules that are suitable for everyday, operational us

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(9816128), Sabiha Marine. "Short-term socio-ecological effects of a localised change in commercial fishing pressure in Queensland, Australia." Thesis, 2021. https://figshare.com/articles/thesis/Short-term_socio-ecological_effects_of_a_localised_change_in_commercial_fishing_pressure_in_Queensland_Australia/15121584.

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Commercial netting closures near three regional cities of Queensland were implemented in 2015 to conserve commercially and recreationally important species by reducing commercial harvest pressure on fish stocks, increase recreational fishing opportunities, marine-based tourism, and resultant economic growth. Understanding the social, ecological, and economic effects of the closures can allow for future adjustments to improve recreational catch and effort factors. The current study compared the values of the three recently established net-free zones (NFZs) with three reference areas of Queensla

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(9875051), BR Weeden. "The commercial potential of sugar beet (Beta vulgaris) for sugar production in the Mareeba-Dimbulah Irrigation Area of North Queensland, Australia." Thesis, 2002. https://figshare.com/articles/thesis/The_commercial_potential_of_sugar_beet_Beta_vulgaris_for_sugar_production_in_the_Mareeba-Dimbulah_Irrigation_Area_of_North_Queensland_Australia/13424945.

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Sugarcane is a tropical plant grown for sugar production under a wide range of mainly warmer climates throughout the world whereas under temperate climates sugar beet is grown for sugar production. In Australia, sugarcane is grown predominantly in the tropical and subtropical regions of the east coast. Since 1996 there has been a rapid expansion of sugarcane production in the Mareeba-Dimbulah Irrigation Area (MDIA), which is part ofthe Atherton Tableland region, about 50 km inland from Cairns in north Queensland. The expansion has been due to declining sugar yields from sugarcane grown on the

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(9802775), Clinton Hayes. "The influence of visible-shortwave NIR spectroscopy hardware components on prediction of fruit attributes." Thesis, 2016. https://figshare.com/articles/thesis/The_influence_of_visible-shortwave_NIR_spectroscopy_hardware_components_on_prediction_of_fruit_attributes/13443194.

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Overall performance of a visible-shortwave near infrared (NIR) spectroscopy system for a given application will be influenced by component performance, including optical geometry, lamp type and output stability in terms of aging and environmental conditions, detector wavelength range, signal to noise and stability to environmental conditions, model transfer across instruments and model robustness in terms of function in the face of varying temperature and ambient light levels. This thesis investigated the characteristics of individual components in context of their effect on performance of par

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(11390741), Saumindra Bhattacharya. "The Role of Auto-Harvester in Enhancing the Efficiency of the Australian Mango Value Chain." Thesis, 2024. https://figshare.com/articles/thesis/The_Role_of_Auto-Harvester_in_Enhancing_the_Efficiency_of_the_Australian_Mango_Value_Chain/29265830.

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The growing reduction in overtime-driven manual labour is an imminent threat to the profitability and overall sustainability of the agri-food industry, including the Australian mango industry. Specifically, picking and packing operations during harvesting contribute almost 50% or more of the total variable cost of production. The adoption of cost-efficient automation technologies in the harvesting of high-value tree fruits, therefore, becomes essential. However, it faces the challenges of capital investment, reliable equipment performance, compatibility to heterogenous planting systems in the

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(10752345), Pragya Kandel. "ASSESSMENT OF POSTHARVEST PEST MANAGEMENT PRACTICES IN NEPAL AND EFFICACY OF HYPOXIA FOR CONTROLLING SITOPHILUS ORYZAE L. (COLEOPTERA: CURCULIONIDAE)." Thesis, 2021.

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Farmers in Nepal lose about a third of their harvested grain due to postharvest handling and storage. This has led to food insecurity and economic losses. Despite the importance of postharvest, the grain storage system in Nepal relies on traditional storage structures like bamboo granaries. The incidence of storage pests is reported up to 100% in these structures. To minimize the storage loss, farmers use different grain protection methods including toxic chemicals. Multiple cases of pesticides-related poisoning and deaths have been caused by misuse and overuse

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(11563255), Jeremy Walsh. "Deep Learning in Estimation of Fruit Attributes Using Near Infrared Spectroscopy." Thesis, 2024. https://figshare.com/articles/thesis/Deep_Learning_in_Estimation_of_Fruit_Attributes_Using_Near_Infrared_Spectroscopy/27208401.

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<p>Determining the Dry Matter Content (DMC) of mango fruit is important for assessing harvest maturity and ensuring the quality of the ripened fruit. Near Infrared (NIR) spectroscopy offers a non-invasive approach to estimate fruit attributes, including DMC, by deducing chemical information from spectra collected from the fruit utilising predictive models, termed chemometrics. However, heterogeneity in growing conditions, fruit varieties, and instrumental differences impacts model performances, which has hindered the widespread practical adoption of NIR spectroscopy within the fruit industry.

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Utto, Weerawate. "Mathematical modelling of active packaging systems for horticultural products : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Packaging Technology at Massey University, New Zealand." 2008. http://hdl.handle.net/10179/824.

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Active packaging systems can offer significant advantages in preventing quality loss in horticultural products through control of microbial and/or physiological activity. By delivering and sustaining volatile active agents at effective levels in a package atmosphere, significant shelf life extension can thus be achieved. Design of these systems is complicated by the number of possible package, product, active agent and carrier combinations that can be employed and the significant interactions that may occur between these components. Mathematical modelling can be used to simplify system design

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(9777950), Dipendra Aryal. "Improving citrus value chains in Australian and Nepalese examples." Thesis, 2022. https://figshare.com/articles/thesis/Improving_citrus_value_chains_in_Australian_and_Nepalese_examples/21708446.

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An integrated method literature review was undertaken on characterisation and mapping of value chains in general and citrus production value chains, specifically. The operation of three small-scale citrus value chains in Central Queensland, Australia, two export-oriented citrus value chains around Wallaville, Queensland, Australia, and a citrus value chain in the western region, Nepal was described through descriptive case studies based on semi-structured interviews with owners, managers, packhouse managers, a labour supply coordinator, government officials and other stakeholders. Various inno

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