Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 312 for “"Shelf life"”.
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Food Shelf Life: Estimation and Experimental Design
<p>Shelf life is a parameter of the lifetime distribution of a food product, usually the time until a specified proportion (1-50%) of the product has spoiled according to taste. The data used to estimate shelf life typically come from a planned experiment with sampled food items observed at …
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Determination of the Shelf Life of Aluminum Electrolytic Capacitors.
… which over time breaks down contributing to a shelf life currently estimated at one nuclear power electric generating station to be approximately five years. This project examined the electrical characteristics of naturally aged capacitors of several different styles to determine if design …
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Shelf-Life Improvement of Distillers Wet Grains with Solubles
… cattle rations. However due to its short shelf-life, 3-4 days in the summer and 7-10 days in the winter, its use is limited to cattle feeding facilities within close proximity to an ethanol production plant. It is known that the shelf-life of DWGS in the summer diminishes drastically …
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Determination of economic shelf life of spent nuclear fuel
The purpose of this study is to determine the constituents of value in spent nuclear fuel and integrate these results into an economic time dependent model of a spent fuel assembly. The value of the constituents in the spent fuel is balanced against the cost of the various nuclear fuel cycle …
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Factors in the extension of shelf life of ration components
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Food Technology, 1958
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Post Harvest Treatment Effects on Crown-Cut Broccoli Shelf Life
… wrapped heads (p<0.05). Between two cultivars, shelf life of cv.Gypsy was better than cv.Everest with respect to color, ascorbic acid retention and weight loss. But cv.Everest retained texture (firmness) better after 35 days of storage. Overall results indicate that shrink wrap packaging and …
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Shelf-life extension of home-made mahewu by adding Aloe vera powder
Department of Food Science and Technology
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Roles of Flavonoid Compounds in Determining the Shelf Life of Tomato Fruit
… role of flavonoid compounds in determining the shelf life of tomato fruit. Shelf life is one of the most important traits for tomato industry. Although there are many approaches to enhance the post-harvest performance of tomato fruit, most of them would have side effects such as reducing fruit …
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Gamma and X-ray Irradiation Improve Postharvest Shelf-Life in 'Bartlett' Pears
<p>The objective of this study was to investigate the effects of gamma and x-ray treatment on ‘Bartlett’ pear physiology during postharvest storage. Freshly harvested ‘Bartlett’ pears were irradiated with gamma irradiation at 0.412 and 0.819 kGy and x-ray irradiation at 1.03 and 1.94 kGy, then …
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Innovative treatments for shelf-life extension of whole and fresh-cut fruit
… a wide range of technologies to enable extended shelf-life. Many factors can lead to loss of quality in fresh product, hence the common description of these products as ‘perishable’. As a consequence normal factors such as transpiration and respiration lead ultimately to water loss and senescence …
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Pineapple Vinegar to Enhance Shelf Life of Carrot and Mango in Tanzania
Fruits and vegetables are highly perishable, produced seasonally, and large quantities (about 50-60% of production) are wasted during high season due to poor handling and lack of cold storage in Tanzania. Processing excess pineapple into vinegar which can be used for preservation of other fruits …
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Determination of Packaging Material Requirements for Optimum Shelf Life of Packaged Filled Milk Powder
… food manufacturing and distribution process. The shelf life of any food is limited due to the occurrence of many deteriorative processes and reactions within the food material. These include physical and chemical reactions and interactions between food and the ambient environment across the …
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An investigation into novel bacteriocin producers isolated for shelf life extension of dairy products
This thesis investigates extension of the shelf life of dairy products and outlines the discovery and characterization of novel antimicrobials for application in food and health. The results demonstrate factors which affect the quality of yoghurt and extend the shelf life of pasteurised milk, and …
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Effects of Disinfectants and Anti-browning Agents on the Shelf-Life of Cauliflower Florets
… a prepackaging methodology that could extend shelf-life of cauliflower florets to at least 14 days at 7.2ºC. Various methodologies were used to treat the cauliflower florets, utilizing six GRAS (generally recognized as safe) chemicals and included various combinations, concentrations, and …
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High Velocity Supply Chain: Redesigning a Long Lead Time, Short Shelf Life Supply Chain
… chain material with long lead times and short shelf lives. Historically, Bell has scrapped over $ 1M/year of these products due to expiration, and meanwhile, multiple stockout events every year adversely impact production schedules. This project addresses these problems by imagining inventory …
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Migration of <I>Penicillium spinulosum</I> from Paperboard Packaging to Extended Shelf Life Milk
… contamination of ultra-pasteurized, extended shelf life milk products. Previous research has indicated paperboard packaging as a potential source for the fungal contamination. Migration from paperboard to ultra-pasteurized skim milk during a 60-day shelf life, was investigated by inoculating …
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