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Filtering by: Subject Oils and fats Remove constraint Subject: Oils and fats Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Efficiency of a direct contact condenser in the presence of the noncondensable gas air compared to a tube and shell condenser

    Creator:
    Lebsack, Jonathan M.
    Abstract:
    Steam distillation is the traditional method used for the extraction of peppermint oil. This process is able to remove approximately 20% of the oils from the leaves of the plant. It is a very costly and un-sustainable process due to the release of carbon emissions. Solvent free microwave extraction promises...
    Resource Type:
    Masters Thesis
    Full Text:
    plant material. The oil is then sold through distributors and specialty oil formulators such as A.M

  • The Role of Alcohol Content on Sensory Aroma Detection Thresholds in Beer

    Creator:
    Peltz, Meghan Lynne
    Abstract:
    This work set out to examine whether ethanol content can influence the human detection of volatile hop compounds in beer. Advances in chromatography have identified hundreds of chemical compounds in the essential oil of hops but only a fraction are directly associated with "hoppy" aroma. To screen compounds, sensory detection...
    Resource Type:
    Masters Thesis
    Full Text:
    odorants in hop essential oil and beer

  • Harvest maturity of Cascade and Willamette hops

    Creator:
    Sharp, Daniel C.
    Abstract:
    Hops (Humulus lupulus L.) are primarily used to provide specific characteristics to beer, such as bitterness, aroma, flavor, and microbial stability. The chemical composition of hops, relative to how they are used during the brewing process, dictates the expression of these characteristics. Of the raw ingredients that go into making...
    Resource Type:
    Masters Thesis
    Full Text:
    agreed upon that high brewing values, such as α-acids and essential oil content, and robust structural

  • Essential oil treatment of VTC wood

    Creator:
    Scouse, Adam A.
    Abstract:
    Western juniper and cinnamon essential oils were combined with ethanol at 2.5, 5, and 10% concentrations by weight and applied to hybrid poplar (Populus trichocarpa x P. deltoids) veneers by vacuum soaking to produce a naturally durable wood veneer with increased mechanical properties for use in structural composites. Half of...
    Resource Type:
    Masters Thesis
    Full Text:
    . Following densification, unprocessed and VTC processed veneers receiving an essential oil treatment were

  • Potential utilization of western juniper residues

    Creator:
    Sichamba, Kennedy
    Abstract:
    Logging and forest thinning operations generate large amounts of residues in the form of small trees, branches and foliage that are usually left on the ground to decay or are burned. These resources are readily available, but it is uneconomical to remove them from the forest. The potential utilization of...
    Resource Type:
    Masters Thesis
    Full Text:
    integrated operation involving steam distillation of western juniper foliage to remove essential oil and

  • Physiological, Chemical and Genetic Studies in Meadowfoam (Limnanthes alba)

    Creator:
    Zhang, Jun
    Abstract:
    Meadowfoam (Limnanthes alba) is an oilseed crop with unique chemical characteristics. The ability to identify physiological maturity (PM) and harvest maturity HM of the crop would permit timely harvest of high quality seeds. However, changes of oil contents, fatty acid profile and glucosinolate contents, as well as seed quality during...
    Resource Type:
    Dissertation
    Full Text:
    permit timely harvest of high quality seeds. However, changes of oil contents, fatty acid profile and

  • Assessing Chemical Dispersants Used During the Deepwater Horizon Oil Spill : Method Innovation and Application

    Creator:
    Perkins, Matt J.
    Abstract:
    Large quantities of the chemical oil dispersant Corexit were applied in the Gulf of Mexico (Gulf) in response to the Deepwater Horizon oil spill. Large data gaps regarding the potential transport, persistence and impact of Corexit in the Gulf existed at the time of the emergency response. Analytical methods for...
    Resource Type:
    Dissertation
    Full Text:
    .......................................................................................................... 1 1.2 The Deepwater Horizon Oil Spill and the Decision to Use Dispersant in Response to DWH

  • Photo-enhanced Toxicity of Oil Constituents and Corexit 9500 to Gulf of Mexico Marine Organisms

    Creator:
    Finch, Bryson E.
    Abstract:
    Significant inputs of hydrocarbons are continually released into the environment from anthropogenic and natural sources. Some of the most toxic hydrocarbon compounds are polycyclic aromatic hydrocarbons. Polycyclic aromatic hydrocarbons are known for their ability to absorb ultraviolet light and enhance toxicity. Generally, PAHs exert their toxicity via narcosis but UV-absorbing...
    Resource Type:
    Dissertation
    Full Text:
    presented on December 11, 2015. Title: Photo-enhanced Toxicity of Oil Constituents and Corexit 9500 to

  • Analytical method development for the identification, detection, and quantification of emerging environmental contaminants in complex matrices

    Creator:
    Place, Benjamin J.
    Abstract:
    The development of analytical methods for emerging contaminants creates many unique challenges for analytical chemists. By their nature, emerging contaminants have inherent data gaps related to their environmental occurrence, fate, and impact. This dissertation is a compilation of three studies related to method development for the structural identification of emerging...
    Resource Type:
    Dissertation
    Full Text:
    : fluorochemical surfactants in aqueous film-forming foams, oil dispersant surfactants in seawater, and fullerene

  • A Practical, Ethical Critique of Hydraulic Fracturing and the Shale Gas Extraction Process

    Creator:
    Bullock, Claude George, III
    Abstract:
    This thesis analyzes the emerging technology of hydraulic fracturing and shale gas extraction process through a pluralistic philosophical approach. Rather than defending traditional values in nature, such as intrinsic value, I defend a metaphilosophical pragmatism centered on policy implications. I argue that different philosophical positions will, most of the time,...
    Resource Type:
    Masters Thesis
    Full Text:
    of allowing the oil and gas industry in a community. 5 Many times in this paper, for